SlideShare ist ein Scribd-Unternehmen logo
1 von 4
Downloaden Sie, um offline zu lesen
Archana Agrawal, Ankit Jain / International Journal of Engineering Research and Applications
                       (IJERA) ISSN: 2248-9622 www.ijera.com
                        Vol. 2, Issue 4, July-August 2012, pp.954-957
Effect of Directly Coupled Parasitic Patch on Floral Shaped Patch
                            Antenna
                                Archana Agrawal*, Ankit Jain**
                       * (Department of Electronics and Communication, ITM Bhilwara)
                        ** (Department of Electronics and Communication, JIIT Noida)


ABSTRACT
         With the rapid development in wireless           [9, 10] have been reported to achieve a wideband
communication systems, the multiple separated            and reduced size antennas. Moreover the multi-band
frequency band antennas have become one of the           antennas [11, 12] are important in areas such as
most important circuit elements and attracted            mobile communication handsets and base stations
much interest. In this paper firstly a floral            systems [13, 14].
shaped patch antenna is designed to resonate at          The main goal of this paper is to present a new
multiple bands by introducing four slits on all the      antenna configuration with combined effect of
four sides of a rectangular shaped patch. Later          slotting and use of parasitic elements to design a
on by adding four different radiating elements           simple low profile, broadband and high gain
connected together and directly coupled to the           antenna. Firstly a floral shaped patch antenna is
floral shaped patch provides three adjacent              designed to resonate at multiple bands by
resonant modes very close to each other. By              introducing four slits on all the four sides of a
controlling the resonant frequencies of the              rectangular shaped patch as shown in fig. 1. The
parasitic elements, a wide impedance bandwidth           dimensions of the slits are controlled to get the
can be observed. The bandwidth is found to be            maximum bandwidth. Later on by adding four
increased from 4.04 % to            8.582 %. The         different radiating elements connected together and
composite effect of integrating slits with the           directly coupled to the floral shaped patch as shown
parasitic elements in the design provides a simple       in fig. 2 provides three adjacent resonant modes
and efficient method for obtaining low profile,          very close to each other by overlapping the parasitic
broadband, high gain antenna. The design is              elements frequency response.
suitable for wireless applications in the range of
3.68GHz to 4.01GHz.                                      II. FLORAL SHAPED ANTENNA DESIGN
                                                                   In this section a multiband floral shaped
Keywords- bandwidth, directly coupled, multiple          patch antenna is designed. Fig. 1 depicts the
bands, parasitic elements                                geometry of the proposed patch antenna with its
                                                         dimensions 36 mm×28 mm. The four slits as shown
I. INTRODUCTION                                          in fig 1 are created in its shape. The FR4 material is
          Modern wireless systems are placing            used as the substrate. The thickness of the substrate
greater emphasis on antenna designs for future           is 1.6mm (h1). The dielectric constant of the
development is communication technology because          material is εr=4.4 and loss tangent=0.02. The
of antenna being the key element in the whole            optimized dimensions of the slits along the length
communication system. Microstrip patch antenna is        are L1=4mm and W1=10mm and along the width
promising to be a good candidate for future wireless     are W2=4mm and L2=12mm. The four squares as
technologies. Microstrip patch antenna consists of a     shown in fig. 1 are of size A1=12mm.The patch
dielectric substrate, with a ground plane on the other   antenna feed is through a coaxial cable , which is
side. Due to its advantages such as low weight , low     positioned along the x axis from the center of the
profile planar configuration, low fabrication costs      rectangular patch by 0.5mm . The ground plane size
and capability to integrate with microwave               is 100 mm ×100 mm.
integrated circuits technology, the microstrip patch     The proposed antenna is simulated using HFSS
antenna is very well suited for applications such as     which is based on FEM. Fig. 3 shows the simulated
wireless communications system, cellular phones,         result with variation in slits dimension. The length
pagers, Radar systems and satellite communications       and width of the slits are varied to get the optimum
systems [1, 2, 3]. On the other side, the greatest       results.
disadvantage of Microstrip Patch Antennas is its low
bandwidth. Many designs and techniques such as
meandered slots in the ground plane [4], slot-loaded
[5, 6], stacked shorted patch [7], E-shaped with
compatible feeding [8] and chip resistor loading




                                                                                              954 | P a g e
Archana Agrawal, Ankit Jain / International Journal of Engineering Research and Applications
                       (IJERA) ISSN: 2248-9622 www.ijera.com
                        Vol. 2, Issue 4, July-August 2012, pp.954-957
                                                  IV. RESULT AND DISCUSSION
                                                        A. Return Loss
                                                        The simulated results of the input return loss for the
                                                        floral shaped patch antenna is shown in fig 3. It is
                                                        observed that the optimum results are obtained at
                                                        L1=4mm, W1=10mm, L2=12mm, W2=4mm as
                                                        mentioned in fig. 1. The bandwidth at the optimum
                                                        dimension is found to be 4.04% at the center
                                                        frequency of 3.6GHz.

Fig. 1 A floral shaped rectangular microstrip patch
antenna


III. OPTIMIZING ANTENNA DESIGN
    WITH PARASITIC PATCHES FOR
    WIDE BANDWIDTH
         The above antenna suffers from the
drawback of narrow bandwidth. To increase its
bandwidth the use of directly coupled parasitic
patches are made. Fig. 2 shows the geometry of the
proposed new above modified floral shaped patch
antenna with parasitic patches. As shown in fig. 4
additional parasitic elements of T shape are directly
coupled and inserted in the slits of the above
designed floral shaped patch. All the dimensions of
the parasitic elements are shown in the fig. Again
the length and width of each element of the T           Fig. 3 Effect on Return Loss of variation in
shaped parasitic element are optimized to get the       dimensions of slits in floral shaped patch antenna
broad bandwidth. These additional resonators
generate the modes very close to the fundamental        Fig. 4 shows the input Return Loss vs Frequency
resonant frequency of the main patch resulting in       curve for the new modified floral shaped patch
broad bandwidth. The antenna operates in the            antenna with parasitic elements. It can be observed
frequency range of 3.68GHz to 4.01GHz. Also the         from the curve that after directly coupling the four T
position of coaxial probe feed is also very important   shaped parasitic patches to the floral shaped patch,
in antenna designing. Trial and error method is used    there are three nearby resonant modes at frequencies
to locate the approximate feed point to optimize the    3.725GHz, 3.86GHz, 3.98GHz with their return loss
bandwidth. The optimized feed location is found to      at             -29.288dB, -25.0126dB, -14.5034dB
be at 0.35mm away from the center point along x         respectively. The 10dB impedance bandwidth is
axis. The results are shown in fig. 4.                  found to be 330MHz, which is about 8.582% of the
                                                        center frequency.




Fig. 2 Geometry of proposed new floral shaped           Fig. 4 Simulated Return loss vs. frequency of
patch with parasitic elements                           modified floral shaped patch antenna with parasitic
                                                        patches


                                                                                             955 | P a g e
Archana Agrawal, Ankit Jain / International Journal of Engineering Research and Applications
                       (IJERA) ISSN: 2248-9622 www.ijera.com
                        Vol. 2, Issue 4, July-August 2012, pp.954-957

B. Radiation Pattern                                   which is nearly twice of floral shaped patch antenna
 Fig 5 shows the radiation pattern at the three        without resonators. The improvements demonstrated
 resonant modes at 3.98GHz, 3.86GHz and                with the additional resonators provide a strong
 3.725GHz respectively.                                foundation for designing future broadband path
                                                       antennas.

                                                       ACKNOWLEDGEMENT
                                                                I highly acknowledge the authorities of
                                                       Jaypee Institute of Information Technology, Noida
                                                       for their support in carrying out my work
                                                       successfully.

                                                       REFERENCES

                                                           [1] W.L. Stutzman and G.A. Thiele, Antenna
                                                               Theory and Design (2nd ed. New York:
                                                               Wiley, 1998).
                                                           [2] C.A. Balanis, Antenna Theory (2nd ed.
                                                               New York: John Wiley & Sons, Inc.,
                                                               1997).
                                                           [3] H. F. AbuTarboush, H. S. Al-Raweshidy,
                                                               A Connected E-shape and U-shape Dual-
                                                               Band Patch Antenna for Different Wireless
                                                               Applications, the Second International
                                                               EURASIP Workshop on RFID Technology,
                                                               July, 2008.
                                                           [4] Kuo, J. S. and K. L. Wong, A compact
                                                               microstrip antenna with meandering slots
                                                               in the ground plane, Microwave & Opt.
                                                               Tech. Letter, Vol. 29, 95–97, April 20,
                                                               2001.
                                                           [5] Eldek, A. A., A. Z. Elsherbeni, and C. E.
                                                               Smith, Characteristics of BOW-TIE slot
                                                               antenna with tapered tuning stubs for
                                                               wideband      operation,     Progress    In
                                                               Electromagnetics Research, PIER 49, 53–
                                                               69, 2004.
                                                           [6] Ang, B. K. and B. K. Chung, A wideband
  Fig. 5 Simulated radiation pattern of the proposed           microstrip patch antenna for 5–6 GHz
   new modified floral shaped patch antenna with               wireless communication, Progress In
                  parasitic elements                           Electromagnetics Research, PIER 75, 397–
                                                               407, 2007.
From the figure above it can be observed that there        [7] Waterhouse, R. B., Broadband stacked
is reduction in power loss in side lobes. Front to             shorted patch, Electronic Letters, Vol. 35,
back ratio is also improved.                                   98–100, January 21, 1999.
                                                           [8] Ge,Y., K. P. Esselle, and T. S. Bird, A
V. CONCLUSION                                                  broadband E-shaped patch antenna with a
         In this work, a new technique for                     microstrip compatible feed, Microwave &
enhancing the gain and bandwidth of rectangular                Opt. Tech. Letter, Vol. 42, No. 2, 111–112,
microstrip patch antenna is presented successfully             July 20, 2004.
by using combined feature of slotting and additional       [9] Wong, K. L. and Y. F. Lin, Microstrip-line-
resonators. The simulated results demonstrate that             fed compact broadband circular microstrip
multi band characteristics can be observed by the              antenna with chip resistor loading,
use of slotting at the four sides of patch antenna             Microwave & Opt. Tech. Letter, Vol. 17,
with impedance bandwidth of 4.04% with respect to              53–55, January 1998.
the normal rectangular patch antenna having only
1% bandwidth. The new modified floral shaped
patch antenna with directly coupled additional
resonators show impedance bandwidth of 8.582%



                                                                                           956 | P a g e
Archana Agrawal, Ankit Jain / International Journal of Engineering Research and Applications
                       (IJERA) ISSN: 2248-9622 www.ijera.com
                        Vol. 2, Issue 4, July-August 2012, pp.954-957

   [10] A.Kaya, High gain rectangular broad band
        microstrip antenna with embedded negative
        capacitor and chip resistor, Progress In
        Electromagnetics Research, PIER 78, 421–
        436, 2008.
   [11] Ying, Z., Design of high efficiency multi-
        band antennas for modern mobile phones,
        AP, 2000, Davos, Switzerland, 2000.
   [12] Martinez-Vazques, M., Litsche, O.,
        Geissler,    M. and Heberling, D., Novel
        triple band antennas for personal
        communications handsets, IEEE, Ant &
        Prop Soc Symposium, June 2002.
   [13] Gandara, T., R. Urban, L. Fregoli, and C.
        Peixeiro, Planar inverted-F antennas
        integrated into small multi-standard
        handsets, Automatika, Portugal, ATKAAF,
        Vol. 48, No. 1–2, 45–52, 2007.
   [14] Amari, H., Penta band antenna based on
        slot    matching,    Project     at    Laird
        Technologies, KTH, France, March 2007.




                                                                               957 | P a g e

Weitere ähnliche Inhalte

Was ist angesagt?

Repeated Plus Shape Slot Fractal Antenna For WiMAX/WLAN Application
Repeated Plus Shape Slot Fractal Antenna For WiMAX/WLAN ApplicationRepeated Plus Shape Slot Fractal Antenna For WiMAX/WLAN Application
Repeated Plus Shape Slot Fractal Antenna For WiMAX/WLAN Applicationijsrd.com
 
“Designed and Simulation Modified H Shaped” Microstrip Patch Antenna
“Designed and Simulation Modified H Shaped” Microstrip Patch Antenna“Designed and Simulation Modified H Shaped” Microstrip Patch Antenna
“Designed and Simulation Modified H Shaped” Microstrip Patch AntennaIOSR Journals
 
An Improved Bandwidth for Electromagnetic Gap Coupled Rhombus Shaped Microstr...
An Improved Bandwidth for Electromagnetic Gap Coupled Rhombus Shaped Microstr...An Improved Bandwidth for Electromagnetic Gap Coupled Rhombus Shaped Microstr...
An Improved Bandwidth for Electromagnetic Gap Coupled Rhombus Shaped Microstr...IJERA Editor
 
Conical Shaped Monopole Antenna for Multiband Wireless Applications
Conical Shaped Monopole Antenna for Multiband Wireless ApplicationsConical Shaped Monopole Antenna for Multiband Wireless Applications
Conical Shaped Monopole Antenna for Multiband Wireless Applicationsiosrjce
 
An Aperture Coupled Printed Antenna for Broadband Radio Services
An Aperture Coupled Printed Antenna for Broadband Radio ServicesAn Aperture Coupled Printed Antenna for Broadband Radio Services
An Aperture Coupled Printed Antenna for Broadband Radio ServicesIRJET Journal
 
2. ijece vibha raj_nag oct 12, 2017 edit septian
2. ijece vibha raj_nag oct 12, 2017 edit septian2. ijece vibha raj_nag oct 12, 2017 edit septian
2. ijece vibha raj_nag oct 12, 2017 edit septianIAESIJEECS
 
Bandwidth efficient stacked arrangement of square patches
Bandwidth efficient stacked arrangement of square patchesBandwidth efficient stacked arrangement of square patches
Bandwidth efficient stacked arrangement of square patchesIAEME Publication
 
A New Compact Design and Comparative Study of Circular Patch Antenna with Dif...
A New Compact Design and Comparative Study of Circular Patch Antenna with Dif...A New Compact Design and Comparative Study of Circular Patch Antenna with Dif...
A New Compact Design and Comparative Study of Circular Patch Antenna with Dif...IRJET Journal
 
Self affine rectangular fractal antenna with uc-ebg structure-2
Self affine rectangular fractal antenna with uc-ebg structure-2Self affine rectangular fractal antenna with uc-ebg structure-2
Self affine rectangular fractal antenna with uc-ebg structure-2IAEME Publication
 
International Journal of Computational Engineering Research (IJCER)
International Journal of Computational Engineering Research (IJCER) International Journal of Computational Engineering Research (IJCER)
International Journal of Computational Engineering Research (IJCER) ijceronline
 

Was ist angesagt? (18)

Repeated Plus Shape Slot Fractal Antenna For WiMAX/WLAN Application
Repeated Plus Shape Slot Fractal Antenna For WiMAX/WLAN ApplicationRepeated Plus Shape Slot Fractal Antenna For WiMAX/WLAN Application
Repeated Plus Shape Slot Fractal Antenna For WiMAX/WLAN Application
 
40120140505012
4012014050501240120140505012
40120140505012
 
Y4102193196
Y4102193196Y4102193196
Y4102193196
 
F31044047
F31044047F31044047
F31044047
 
“Designed and Simulation Modified H Shaped” Microstrip Patch Antenna
“Designed and Simulation Modified H Shaped” Microstrip Patch Antenna“Designed and Simulation Modified H Shaped” Microstrip Patch Antenna
“Designed and Simulation Modified H Shaped” Microstrip Patch Antenna
 
An Improved Bandwidth for Electromagnetic Gap Coupled Rhombus Shaped Microstr...
An Improved Bandwidth for Electromagnetic Gap Coupled Rhombus Shaped Microstr...An Improved Bandwidth for Electromagnetic Gap Coupled Rhombus Shaped Microstr...
An Improved Bandwidth for Electromagnetic Gap Coupled Rhombus Shaped Microstr...
 
Conical Shaped Monopole Antenna for Multiband Wireless Applications
Conical Shaped Monopole Antenna for Multiband Wireless ApplicationsConical Shaped Monopole Antenna for Multiband Wireless Applications
Conical Shaped Monopole Antenna for Multiband Wireless Applications
 
An Aperture Coupled Printed Antenna for Broadband Radio Services
An Aperture Coupled Printed Antenna for Broadband Radio ServicesAn Aperture Coupled Printed Antenna for Broadband Radio Services
An Aperture Coupled Printed Antenna for Broadband Radio Services
 
W35124128
W35124128W35124128
W35124128
 
J010316368
J010316368J010316368
J010316368
 
2. ijece vibha raj_nag oct 12, 2017 edit septian
2. ijece vibha raj_nag oct 12, 2017 edit septian2. ijece vibha raj_nag oct 12, 2017 edit septian
2. ijece vibha raj_nag oct 12, 2017 edit septian
 
Bandwidth efficient stacked arrangement of square patches
Bandwidth efficient stacked arrangement of square patchesBandwidth efficient stacked arrangement of square patches
Bandwidth efficient stacked arrangement of square patches
 
A New Compact Design and Comparative Study of Circular Patch Antenna with Dif...
A New Compact Design and Comparative Study of Circular Patch Antenna with Dif...A New Compact Design and Comparative Study of Circular Patch Antenna with Dif...
A New Compact Design and Comparative Study of Circular Patch Antenna with Dif...
 
20120140503004
2012014050300420120140503004
20120140503004
 
Self affine rectangular fractal antenna with uc-ebg structure-2
Self affine rectangular fractal antenna with uc-ebg structure-2Self affine rectangular fractal antenna with uc-ebg structure-2
Self affine rectangular fractal antenna with uc-ebg structure-2
 
E010242430
E010242430E010242430
E010242430
 
International Journal of Computational Engineering Research (IJCER)
International Journal of Computational Engineering Research (IJCER) International Journal of Computational Engineering Research (IJCER)
International Journal of Computational Engineering Research (IJCER)
 
H010435256
H010435256H010435256
H010435256
 

Andere mochten auch

Inclined Bed Therapy and Diabetes Study
Inclined Bed Therapy and Diabetes StudyInclined Bed Therapy and Diabetes Study
Inclined Bed Therapy and Diabetes StudyDoctor Nareau
 
Educar -rubem_alves
Educar  -rubem_alvesEducar  -rubem_alves
Educar -rubem_alveschiquetts
 
Licenza edilizia assentita 2009 vassallo antonietta c.e.s. n.12 2009[1]
Licenza edilizia assentita 2009 vassallo antonietta c.e.s. n.12 2009[1]Licenza edilizia assentita 2009 vassallo antonietta c.e.s. n.12 2009[1]
Licenza edilizia assentita 2009 vassallo antonietta c.e.s. n.12 2009[1]lasvolta
 
Requerimento de informações mme - petrobrás - premium i e ii, abreu e lima
Requerimento de informações   mme - petrobrás - premium i e ii, abreu e limaRequerimento de informações   mme - petrobrás - premium i e ii, abreu e lima
Requerimento de informações mme - petrobrás - premium i e ii, abreu e limaPaulo Veras
 

Andere mochten auch (20)

Jp2516981701
Jp2516981701Jp2516981701
Jp2516981701
 
Fj24994999
Fj24994999Fj24994999
Fj24994999
 
Fv2410561067
Fv2410561067Fv2410561067
Fv2410561067
 
Ft2410451049
Ft2410451049Ft2410451049
Ft2410451049
 
Fm2410101013
Fm2410101013Fm2410101013
Fm2410101013
 
Gg2411291135
Gg2411291135Gg2411291135
Gg2411291135
 
Jl2516751681
Jl2516751681Jl2516751681
Jl2516751681
 
Gc2411021106
Gc2411021106Gc2411021106
Gc2411021106
 
Hz2414081415
Hz2414081415Hz2414081415
Hz2414081415
 
Aw26312325
Aw26312325Aw26312325
Aw26312325
 
Inclined Bed Therapy and Diabetes Study
Inclined Bed Therapy and Diabetes StudyInclined Bed Therapy and Diabetes Study
Inclined Bed Therapy and Diabetes Study
 
Amiizade
AmiizadeAmiizade
Amiizade
 
Educar -rubem_alves
Educar  -rubem_alvesEducar  -rubem_alves
Educar -rubem_alves
 
Os trabalhos academicos
Os trabalhos academicosOs trabalhos academicos
Os trabalhos academicos
 
Ver Ip
Ver IpVer Ip
Ver Ip
 
9- Atenció a la demència. Dra. Isabel Fort
9- Atenció a la demència. Dra. Isabel Fort9- Atenció a la demència. Dra. Isabel Fort
9- Atenció a la demència. Dra. Isabel Fort
 
Jo2416561659
Jo2416561659Jo2416561659
Jo2416561659
 
Licenza edilizia assentita 2009 vassallo antonietta c.e.s. n.12 2009[1]
Licenza edilizia assentita 2009 vassallo antonietta c.e.s. n.12 2009[1]Licenza edilizia assentita 2009 vassallo antonietta c.e.s. n.12 2009[1]
Licenza edilizia assentita 2009 vassallo antonietta c.e.s. n.12 2009[1]
 
Consumo
ConsumoConsumo
Consumo
 
Requerimento de informações mme - petrobrás - premium i e ii, abreu e lima
Requerimento de informações   mme - petrobrás - premium i e ii, abreu e limaRequerimento de informações   mme - petrobrás - premium i e ii, abreu e lima
Requerimento de informações mme - petrobrás - premium i e ii, abreu e lima
 

Ähnlich wie Fa24954957

“Designed and Simulation Modified H Shaped” Microstrip Patch Antenna
“Designed and Simulation Modified H Shaped” Microstrip Patch Antenna“Designed and Simulation Modified H Shaped” Microstrip Patch Antenna
“Designed and Simulation Modified H Shaped” Microstrip Patch AntennaIOSR Journals
 
REVIEW OF FRACTAL TECHNIQUES FOR DESIGNING MICROSTRIP PATCH ANTENNA FOR X BAND
REVIEW OF FRACTAL TECHNIQUES FOR DESIGNING MICROSTRIP PATCH ANTENNA FOR X BANDREVIEW OF FRACTAL TECHNIQUES FOR DESIGNING MICROSTRIP PATCH ANTENNA FOR X BAND
REVIEW OF FRACTAL TECHNIQUES FOR DESIGNING MICROSTRIP PATCH ANTENNA FOR X BANDIJEEE
 
A Compact Dual Band Elliptical Microstrip Antenna for Ku/K Band Satellite App...
A Compact Dual Band Elliptical Microstrip Antenna for Ku/K Band Satellite App...A Compact Dual Band Elliptical Microstrip Antenna for Ku/K Band Satellite App...
A Compact Dual Band Elliptical Microstrip Antenna for Ku/K Band Satellite App...IJECEIAES
 
IRJET- Design of Four Stack Millimeter Antenna for Medical Applications
IRJET- Design of Four Stack Millimeter Antenna for Medical ApplicationsIRJET- Design of Four Stack Millimeter Antenna for Medical Applications
IRJET- Design of Four Stack Millimeter Antenna for Medical ApplicationsIRJET Journal
 
Modified Sierpinski Gasket for Wi-Fi and WLAN Applications
Modified Sierpinski Gasket for Wi-Fi and WLAN ApplicationsModified Sierpinski Gasket for Wi-Fi and WLAN Applications
Modified Sierpinski Gasket for Wi-Fi and WLAN ApplicationsIJERA Editor
 
Modified Sierpinski Gasket for Wi-Fi and WLAN Applications
Modified Sierpinski Gasket for Wi-Fi and WLAN ApplicationsModified Sierpinski Gasket for Wi-Fi and WLAN Applications
Modified Sierpinski Gasket for Wi-Fi and WLAN ApplicationsIJERA Editor
 
E shape microstrip patch antenna design for wimax applications, international...
E shape microstrip patch antenna design for wimax applications, international...E shape microstrip patch antenna design for wimax applications, international...
E shape microstrip patch antenna design for wimax applications, international...Sk Sohag
 
Circular Slot Loaded Rectangular Microstrip Patch Antenna For WLAN / WiMax Ap...
Circular Slot Loaded Rectangular Microstrip Patch Antenna For WLAN / WiMax Ap...Circular Slot Loaded Rectangular Microstrip Patch Antenna For WLAN / WiMax Ap...
Circular Slot Loaded Rectangular Microstrip Patch Antenna For WLAN / WiMax Ap...IJSRD
 
DESIGN OF DUAL BAND DISSIMILAR PATCH SIZE ARRAY ANTENNA FOR WIRELESS APPLICAT...
DESIGN OF DUAL BAND DISSIMILAR PATCH SIZE ARRAY ANTENNA FOR WIRELESS APPLICAT...DESIGN OF DUAL BAND DISSIMILAR PATCH SIZE ARRAY ANTENNA FOR WIRELESS APPLICAT...
DESIGN OF DUAL BAND DISSIMILAR PATCH SIZE ARRAY ANTENNA FOR WIRELESS APPLICAT...ijistjournal
 
Design of dual band dissimilar patch size
Design of dual band dissimilar patch sizeDesign of dual band dissimilar patch size
Design of dual band dissimilar patch sizeijistjournal
 
Broadband Rhombus Shaped Microstrip Patch Antenna With U Shaped Slot For Wima...
Broadband Rhombus Shaped Microstrip Patch Antenna With U Shaped Slot For Wima...Broadband Rhombus Shaped Microstrip Patch Antenna With U Shaped Slot For Wima...
Broadband Rhombus Shaped Microstrip Patch Antenna With U Shaped Slot For Wima...IJERA Editor
 
DESIGN OF A MINIATURE RECTANGULAR PATCH ANTENNA FOR KU BAND APPLICATIONS
DESIGN OF A MINIATURE RECTANGULAR PATCH ANTENNA FOR KU BAND APPLICATIONSDESIGN OF A MINIATURE RECTANGULAR PATCH ANTENNA FOR KU BAND APPLICATIONS
DESIGN OF A MINIATURE RECTANGULAR PATCH ANTENNA FOR KU BAND APPLICATIONSijasa
 
Gain and Directivity Enhancement of Rectangular Microstrip Patch Antenna usin...
Gain and Directivity Enhancement of Rectangular Microstrip Patch Antenna usin...Gain and Directivity Enhancement of Rectangular Microstrip Patch Antenna usin...
Gain and Directivity Enhancement of Rectangular Microstrip Patch Antenna usin...Associate Professor in VSB Coimbatore
 
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNADESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNAjantjournal
 
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA jantjournal
 
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNADESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNAjantjournal
 
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNADESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNAjantjournal
 
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNADESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNAjantjournal
 
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA jantjournal
 
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNADESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNAjantjournal
 

Ähnlich wie Fa24954957 (20)

“Designed and Simulation Modified H Shaped” Microstrip Patch Antenna
“Designed and Simulation Modified H Shaped” Microstrip Patch Antenna“Designed and Simulation Modified H Shaped” Microstrip Patch Antenna
“Designed and Simulation Modified H Shaped” Microstrip Patch Antenna
 
REVIEW OF FRACTAL TECHNIQUES FOR DESIGNING MICROSTRIP PATCH ANTENNA FOR X BAND
REVIEW OF FRACTAL TECHNIQUES FOR DESIGNING MICROSTRIP PATCH ANTENNA FOR X BANDREVIEW OF FRACTAL TECHNIQUES FOR DESIGNING MICROSTRIP PATCH ANTENNA FOR X BAND
REVIEW OF FRACTAL TECHNIQUES FOR DESIGNING MICROSTRIP PATCH ANTENNA FOR X BAND
 
A Compact Dual Band Elliptical Microstrip Antenna for Ku/K Band Satellite App...
A Compact Dual Band Elliptical Microstrip Antenna for Ku/K Band Satellite App...A Compact Dual Band Elliptical Microstrip Antenna for Ku/K Band Satellite App...
A Compact Dual Band Elliptical Microstrip Antenna for Ku/K Band Satellite App...
 
IRJET- Design of Four Stack Millimeter Antenna for Medical Applications
IRJET- Design of Four Stack Millimeter Antenna for Medical ApplicationsIRJET- Design of Four Stack Millimeter Antenna for Medical Applications
IRJET- Design of Four Stack Millimeter Antenna for Medical Applications
 
Modified Sierpinski Gasket for Wi-Fi and WLAN Applications
Modified Sierpinski Gasket for Wi-Fi and WLAN ApplicationsModified Sierpinski Gasket for Wi-Fi and WLAN Applications
Modified Sierpinski Gasket for Wi-Fi and WLAN Applications
 
Modified Sierpinski Gasket for Wi-Fi and WLAN Applications
Modified Sierpinski Gasket for Wi-Fi and WLAN ApplicationsModified Sierpinski Gasket for Wi-Fi and WLAN Applications
Modified Sierpinski Gasket for Wi-Fi and WLAN Applications
 
E shape microstrip patch antenna design for wimax applications, international...
E shape microstrip patch antenna design for wimax applications, international...E shape microstrip patch antenna design for wimax applications, international...
E shape microstrip patch antenna design for wimax applications, international...
 
Circular Slot Loaded Rectangular Microstrip Patch Antenna For WLAN / WiMax Ap...
Circular Slot Loaded Rectangular Microstrip Patch Antenna For WLAN / WiMax Ap...Circular Slot Loaded Rectangular Microstrip Patch Antenna For WLAN / WiMax Ap...
Circular Slot Loaded Rectangular Microstrip Patch Antenna For WLAN / WiMax Ap...
 
DESIGN OF DUAL BAND DISSIMILAR PATCH SIZE ARRAY ANTENNA FOR WIRELESS APPLICAT...
DESIGN OF DUAL BAND DISSIMILAR PATCH SIZE ARRAY ANTENNA FOR WIRELESS APPLICAT...DESIGN OF DUAL BAND DISSIMILAR PATCH SIZE ARRAY ANTENNA FOR WIRELESS APPLICAT...
DESIGN OF DUAL BAND DISSIMILAR PATCH SIZE ARRAY ANTENNA FOR WIRELESS APPLICAT...
 
Design of dual band dissimilar patch size
Design of dual band dissimilar patch sizeDesign of dual band dissimilar patch size
Design of dual band dissimilar patch size
 
Broadband Rhombus Shaped Microstrip Patch Antenna With U Shaped Slot For Wima...
Broadband Rhombus Shaped Microstrip Patch Antenna With U Shaped Slot For Wima...Broadband Rhombus Shaped Microstrip Patch Antenna With U Shaped Slot For Wima...
Broadband Rhombus Shaped Microstrip Patch Antenna With U Shaped Slot For Wima...
 
DESIGN OF A MINIATURE RECTANGULAR PATCH ANTENNA FOR KU BAND APPLICATIONS
DESIGN OF A MINIATURE RECTANGULAR PATCH ANTENNA FOR KU BAND APPLICATIONSDESIGN OF A MINIATURE RECTANGULAR PATCH ANTENNA FOR KU BAND APPLICATIONS
DESIGN OF A MINIATURE RECTANGULAR PATCH ANTENNA FOR KU BAND APPLICATIONS
 
Gain and Directivity Enhancement of Rectangular Microstrip Patch Antenna usin...
Gain and Directivity Enhancement of Rectangular Microstrip Patch Antenna usin...Gain and Directivity Enhancement of Rectangular Microstrip Patch Antenna usin...
Gain and Directivity Enhancement of Rectangular Microstrip Patch Antenna usin...
 
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNADESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
 
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
 
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNADESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
 
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNADESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
 
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNADESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
 
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
 
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNADESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA
 

Fa24954957

  • 1. Archana Agrawal, Ankit Jain / International Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622 www.ijera.com Vol. 2, Issue 4, July-August 2012, pp.954-957 Effect of Directly Coupled Parasitic Patch on Floral Shaped Patch Antenna Archana Agrawal*, Ankit Jain** * (Department of Electronics and Communication, ITM Bhilwara) ** (Department of Electronics and Communication, JIIT Noida) ABSTRACT With the rapid development in wireless [9, 10] have been reported to achieve a wideband communication systems, the multiple separated and reduced size antennas. Moreover the multi-band frequency band antennas have become one of the antennas [11, 12] are important in areas such as most important circuit elements and attracted mobile communication handsets and base stations much interest. In this paper firstly a floral systems [13, 14]. shaped patch antenna is designed to resonate at The main goal of this paper is to present a new multiple bands by introducing four slits on all the antenna configuration with combined effect of four sides of a rectangular shaped patch. Later slotting and use of parasitic elements to design a on by adding four different radiating elements simple low profile, broadband and high gain connected together and directly coupled to the antenna. Firstly a floral shaped patch antenna is floral shaped patch provides three adjacent designed to resonate at multiple bands by resonant modes very close to each other. By introducing four slits on all the four sides of a controlling the resonant frequencies of the rectangular shaped patch as shown in fig. 1. The parasitic elements, a wide impedance bandwidth dimensions of the slits are controlled to get the can be observed. The bandwidth is found to be maximum bandwidth. Later on by adding four increased from 4.04 % to 8.582 %. The different radiating elements connected together and composite effect of integrating slits with the directly coupled to the floral shaped patch as shown parasitic elements in the design provides a simple in fig. 2 provides three adjacent resonant modes and efficient method for obtaining low profile, very close to each other by overlapping the parasitic broadband, high gain antenna. The design is elements frequency response. suitable for wireless applications in the range of 3.68GHz to 4.01GHz. II. FLORAL SHAPED ANTENNA DESIGN In this section a multiband floral shaped Keywords- bandwidth, directly coupled, multiple patch antenna is designed. Fig. 1 depicts the bands, parasitic elements geometry of the proposed patch antenna with its dimensions 36 mm×28 mm. The four slits as shown I. INTRODUCTION in fig 1 are created in its shape. The FR4 material is Modern wireless systems are placing used as the substrate. The thickness of the substrate greater emphasis on antenna designs for future is 1.6mm (h1). The dielectric constant of the development is communication technology because material is εr=4.4 and loss tangent=0.02. The of antenna being the key element in the whole optimized dimensions of the slits along the length communication system. Microstrip patch antenna is are L1=4mm and W1=10mm and along the width promising to be a good candidate for future wireless are W2=4mm and L2=12mm. The four squares as technologies. Microstrip patch antenna consists of a shown in fig. 1 are of size A1=12mm.The patch dielectric substrate, with a ground plane on the other antenna feed is through a coaxial cable , which is side. Due to its advantages such as low weight , low positioned along the x axis from the center of the profile planar configuration, low fabrication costs rectangular patch by 0.5mm . The ground plane size and capability to integrate with microwave is 100 mm ×100 mm. integrated circuits technology, the microstrip patch The proposed antenna is simulated using HFSS antenna is very well suited for applications such as which is based on FEM. Fig. 3 shows the simulated wireless communications system, cellular phones, result with variation in slits dimension. The length pagers, Radar systems and satellite communications and width of the slits are varied to get the optimum systems [1, 2, 3]. On the other side, the greatest results. disadvantage of Microstrip Patch Antennas is its low bandwidth. Many designs and techniques such as meandered slots in the ground plane [4], slot-loaded [5, 6], stacked shorted patch [7], E-shaped with compatible feeding [8] and chip resistor loading 954 | P a g e
  • 2. Archana Agrawal, Ankit Jain / International Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622 www.ijera.com Vol. 2, Issue 4, July-August 2012, pp.954-957 IV. RESULT AND DISCUSSION A. Return Loss The simulated results of the input return loss for the floral shaped patch antenna is shown in fig 3. It is observed that the optimum results are obtained at L1=4mm, W1=10mm, L2=12mm, W2=4mm as mentioned in fig. 1. The bandwidth at the optimum dimension is found to be 4.04% at the center frequency of 3.6GHz. Fig. 1 A floral shaped rectangular microstrip patch antenna III. OPTIMIZING ANTENNA DESIGN WITH PARASITIC PATCHES FOR WIDE BANDWIDTH The above antenna suffers from the drawback of narrow bandwidth. To increase its bandwidth the use of directly coupled parasitic patches are made. Fig. 2 shows the geometry of the proposed new above modified floral shaped patch antenna with parasitic patches. As shown in fig. 4 additional parasitic elements of T shape are directly coupled and inserted in the slits of the above designed floral shaped patch. All the dimensions of the parasitic elements are shown in the fig. Again the length and width of each element of the T Fig. 3 Effect on Return Loss of variation in shaped parasitic element are optimized to get the dimensions of slits in floral shaped patch antenna broad bandwidth. These additional resonators generate the modes very close to the fundamental Fig. 4 shows the input Return Loss vs Frequency resonant frequency of the main patch resulting in curve for the new modified floral shaped patch broad bandwidth. The antenna operates in the antenna with parasitic elements. It can be observed frequency range of 3.68GHz to 4.01GHz. Also the from the curve that after directly coupling the four T position of coaxial probe feed is also very important shaped parasitic patches to the floral shaped patch, in antenna designing. Trial and error method is used there are three nearby resonant modes at frequencies to locate the approximate feed point to optimize the 3.725GHz, 3.86GHz, 3.98GHz with their return loss bandwidth. The optimized feed location is found to at -29.288dB, -25.0126dB, -14.5034dB be at 0.35mm away from the center point along x respectively. The 10dB impedance bandwidth is axis. The results are shown in fig. 4. found to be 330MHz, which is about 8.582% of the center frequency. Fig. 2 Geometry of proposed new floral shaped Fig. 4 Simulated Return loss vs. frequency of patch with parasitic elements modified floral shaped patch antenna with parasitic patches 955 | P a g e
  • 3. Archana Agrawal, Ankit Jain / International Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622 www.ijera.com Vol. 2, Issue 4, July-August 2012, pp.954-957 B. Radiation Pattern which is nearly twice of floral shaped patch antenna Fig 5 shows the radiation pattern at the three without resonators. The improvements demonstrated resonant modes at 3.98GHz, 3.86GHz and with the additional resonators provide a strong 3.725GHz respectively. foundation for designing future broadband path antennas. ACKNOWLEDGEMENT I highly acknowledge the authorities of Jaypee Institute of Information Technology, Noida for their support in carrying out my work successfully. REFERENCES [1] W.L. Stutzman and G.A. Thiele, Antenna Theory and Design (2nd ed. New York: Wiley, 1998). [2] C.A. Balanis, Antenna Theory (2nd ed. New York: John Wiley & Sons, Inc., 1997). [3] H. F. AbuTarboush, H. S. Al-Raweshidy, A Connected E-shape and U-shape Dual- Band Patch Antenna for Different Wireless Applications, the Second International EURASIP Workshop on RFID Technology, July, 2008. [4] Kuo, J. S. and K. L. Wong, A compact microstrip antenna with meandering slots in the ground plane, Microwave & Opt. Tech. Letter, Vol. 29, 95–97, April 20, 2001. [5] Eldek, A. A., A. Z. Elsherbeni, and C. E. Smith, Characteristics of BOW-TIE slot antenna with tapered tuning stubs for wideband operation, Progress In Electromagnetics Research, PIER 49, 53– 69, 2004. [6] Ang, B. K. and B. K. Chung, A wideband Fig. 5 Simulated radiation pattern of the proposed microstrip patch antenna for 5–6 GHz new modified floral shaped patch antenna with wireless communication, Progress In parasitic elements Electromagnetics Research, PIER 75, 397– 407, 2007. From the figure above it can be observed that there [7] Waterhouse, R. B., Broadband stacked is reduction in power loss in side lobes. Front to shorted patch, Electronic Letters, Vol. 35, back ratio is also improved. 98–100, January 21, 1999. [8] Ge,Y., K. P. Esselle, and T. S. Bird, A V. CONCLUSION broadband E-shaped patch antenna with a In this work, a new technique for microstrip compatible feed, Microwave & enhancing the gain and bandwidth of rectangular Opt. Tech. Letter, Vol. 42, No. 2, 111–112, microstrip patch antenna is presented successfully July 20, 2004. by using combined feature of slotting and additional [9] Wong, K. L. and Y. F. Lin, Microstrip-line- resonators. The simulated results demonstrate that fed compact broadband circular microstrip multi band characteristics can be observed by the antenna with chip resistor loading, use of slotting at the four sides of patch antenna Microwave & Opt. Tech. Letter, Vol. 17, with impedance bandwidth of 4.04% with respect to 53–55, January 1998. the normal rectangular patch antenna having only 1% bandwidth. The new modified floral shaped patch antenna with directly coupled additional resonators show impedance bandwidth of 8.582% 956 | P a g e
  • 4. Archana Agrawal, Ankit Jain / International Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622 www.ijera.com Vol. 2, Issue 4, July-August 2012, pp.954-957 [10] A.Kaya, High gain rectangular broad band microstrip antenna with embedded negative capacitor and chip resistor, Progress In Electromagnetics Research, PIER 78, 421– 436, 2008. [11] Ying, Z., Design of high efficiency multi- band antennas for modern mobile phones, AP, 2000, Davos, Switzerland, 2000. [12] Martinez-Vazques, M., Litsche, O., Geissler, M. and Heberling, D., Novel triple band antennas for personal communications handsets, IEEE, Ant & Prop Soc Symposium, June 2002. [13] Gandara, T., R. Urban, L. Fregoli, and C. Peixeiro, Planar inverted-F antennas integrated into small multi-standard handsets, Automatika, Portugal, ATKAAF, Vol. 48, No. 1–2, 45–52, 2007. [14] Amari, H., Penta band antenna based on slot matching, Project at Laird Technologies, KTH, France, March 2007. 957 | P a g e