2. HIGH FREQUENCY ENGINEERING | DESIGN | SIMULATION | MEASUREMENT HIGH FREQUENCY ENGINEERING | DESIGN | SIMULATION | MEASUREMENT
High Frequency: Moving Waves
High frequency in electronics and communications
engineering refers to electric and/or magnetic fields with
frequencies above 100 kHz. Its long range makes high
frequency especially suitable for application in the areas
of mobile telephony, radio and television engineering, and
radar and satellite technology. The information modulated
onto the electromagnetic wave can be transmitted over fixed
lines or, wireless, through open space.
High frequency interferences may also be produced in
electronic circuits. The statutory limits for this undesired
effect are specified in the Electromagnetic Compatibility
Regulations (EMC Regulations) and the corresponding
standards.
Expertise for Your Success
As an important consultant in the field of high frequency
engineering,weofferawiderangeofservicesfromconsulting,
simulation and modelling through to the implementation
and experimental verification of various high frequency
applications.
Signal and interconnectivity analyses provide the basis for
circuit optimisation in high-speed designs. The results of these
analyses are used to ensure electromagnetic compatibility.
Design and layout activities include concepts and optimisation
of mixed-signal circuits, antennas, filters, matching structures
etc. through to implementation and verification.
Cutting-edge simulation tools are used to model and optimise
complete systems.
Simulation and Modelling
Complex simulation models of extreme accuracy are required
for high-quality HF circuit development.
A wide variety of technological parameters must be taken
into account to achieve a reliable simulation of complex
integrated systems.
The simulation are converged to the defined design goals by
targeted optimisation of the model parameters.
Design and Implementation
The design process is based on the simulation results and
manufacturing process parameters.
The production data are generated based on the existing
expertise in high-speed design, EMC and high frequency
engineering.
The manufacturing laboratory is equipped with an A3 milling/
drilling plotter, an SMD pick and place system and a reflow
oven for prototype production.
Measurement and Evaluation
Our laboratory verifies the designs using cutting-edge
measurement equipment.
High-performance networks and software tools allow us to
electronically record and convert the measurement data, to
compare them with the simulation data sets and document
the results.
Research and Development
Hybrid Design
This field of activity concentrates on passive components
embedded in organic or ceramic substrates, such as capacitors,
inductors and resistors, as well as assembly and connection
techniques using different substrate technologies.
Circuit Design, CAD
The range of services is completed by circuit design, simulation
and implementation and subsequent transfer to production.
Simulation
The team members specialise in different simulation methods,
thus covering a wide range of software tools - from low-level
circuit simulations to 2.5D and 3D FEM simulators. Special
emphasis is placed on computer-based signal analysis as a
basis for maintaining signal integrity.
Consulting
Major tasks include general consulting on issues ranging
from concept development through to compliance with EMC
regulations.
Measurement
A laboratory is available for the metrological characterisation
of the applications. The shielding anechoic chamber is
equipped for a wide range of high-frequency and EMC
measurements.
3. HIGH FREQUENCY ENGINEERING | DESIGN | SIMULATION | MEASUREMENT
Projects
• GPS receiver
• Switcher module with integrated diplexer for GSM/UMTS
• DVB-H amplifier module for GSM/UMTS
• Balun studies
HF Design
• DVB-T front-end for mobile video broadcasts
• Filter structures for higher-order bandpasses
• PLLs with low-phase noise
• Linear amplifier concepts
Antenna Simulation and Design
• Dipole antenna for RF-ID reader
• Inverted-F antenna for Bluetooth base + mobile stations
Equipment
Agilent
logic state analyser 16903A
State analysis up to 600MHz
Agilent
powermeter E4416
E9322A power sensor
Albatross
Shielding anechoic chamber
7 x 3 x 3 m (L x W x H)
Frequency range: 80 MHz to
18 GHz
Bilog Yagi
Horn antennas
Frequency range: up to
7 GHz
EMSCAN
Nexus Plus nearfield scanner
Frequency range: 10 MHz to
1 GHz
Frankonia
EMC amplifier
FLH – 200/100
FLG 2.5
Contact:
DI (FH) Wolfgang Stocksreiter
Tel.: +43 (0)3862 / 33 600 – 8359
Fax: +43 (0)3862 / 33 600 – 98359
E-mail: wolfgang.stocksreiter@fh-joanneum.at
Hewlett Packard
network analyser HP 8753C
Frequency range: 300 kHz to
3 GHz
Hewlett Packard
EM RF spectrum and EMC
Analyser HP 8594
9 kHz to 2.9 GHz
INNCO
turntable
+-1° positioning accuracy
0.5 to 2 rpm
LeCroy WaveMaster
oscilloscope 8600A
Frequency range: up to
6 GHz
Rohde & Schwarz
EMI test receiver ESU 8
Frequency range: 20 Hz to
26.5 GHz
Rohde & Schwarz
Signal analyser FSIQ26
Frequency range: 20 Hz to
26.5 GHz
• Yagi antenna for WLAN
• Inverted-F antenna for mobile ECG
• Slot antenna for passive transponder systems
• PIFA antenna for medical prostheses
• Antenna studies for ZigBee applications
• Ferrite antenna for LF signals
FR4 Hybrid Design
• Embedded resistors
High-Speed Design
• Multiprocessor DSP board
EMC Consulting and Measurements
Rohde & Schwarz
Signal I/Q modulation
generator
AMIQ 04
Rohde & Schwarz
bluetooth protocol PTW 60
analyser
Rohde & Schwarz
Digital attenuator
Range: 0 to 139.9 dB
Rohde & Schwarz
signal generator SMY 02
Frequency range: 9 kHz to
2.08 GHz
Rohde & Schwarz
signal generator SMIQ 03B
Frequency range: 300 kHz
- 3 GHz
Tektronix
oscilloscope TDS 744A
Frequency range: up to
1 GHz osc.
Address:
FH JOANNEUM Gesellschaft mbH
Werk VI Strasse 46, 8605 Kapfenberg
AUSTRIA
www.fh-joanneum.at
