Choosing the correct antenna for the Mimosa point-to-multipoint (PTMP) solution is critical to delivering a high-performance wireless network. This webinar will review how to get the best ground coverage based on the subscriber density, distances, interference levels and terrain challenges; deployment options for density versus performance, and how to identify quality antennas.
1. @GoMimosa
@mimosanetworks
Antennas are Not One-Size-Fits-All
Choose the Right Antenna for Your PTMP Solution
Presented By:
David Stiff
Vice President, Product Management
Mimosa Networks
2. Subscriber Density
Surburban
1,000 – 3,000 persons/mi2
Density too high for sectors
MicroPOP
Utilize Spectrum Reuse
Rural
< 1,000 persons/mi2
GigaPOP
Long Range Towers
High Gain Antennas
?
In-between
Decision depends on available assets
3. ¡ GigaPOP - Tower Deployment
¡ Mount: Typically high on a tower, town-tilt based on height and
subscriber location
¡ Coverage: 1 to many sectors with A5c, depending on coverage and
capacity
¡ Broadband feed: Fiber or wireless backhaul
¡ MicroPOP – In Community Deployment
¡ Mounting: Rooftop level on a hub home roof, utility poles, trees,
limited towntilt
¡ Coverage: Single 360 coverage with A5-14, 20-30 subscribers typical
¡ Broadband feed: muni fiber or wireless shorthaul
Available Assets
7. 0 m 5000 m 10000 m 15000 m 20000 m 25000 m
A5-14 - C5c
A5c - C5c
MMaaxx DDiissttaannccee bbyy EEIIRRPP lliimmiitt -- 22 SSttrreeaamm MMCCSS 77
Max 36 dBm EIRP 30 dBm EIRP
Point to Multipoint (PTMP)
3.1 mi 6.2 mi 9.3 mi 12.4 mi 15.5 mi
20 km
4.5 km
8 km
4 km
3.5 km
1.8 km
10. +45
-45
-45
+45
H V H V
Single Sector Antenna Connections
Connect ports 1 and 3 to the same polarization.
Connect ports 2 and 4 to the other polarization.
11. Advantage of Using 4x4 Sectors
65°65° 65°
+ =
6 dBi Gain
+3 dBi Beamforming
+3 dBi Tx power gain in same direction
(dual PAs in same direction)
TX EIRP must conform to regulated limits
Maximum Performance
18. A5c with 2 Sector Antennas
Sector Antenna
#1
A POL B POL
Sector Antenna
#2
A POL B POL
Cost Optimized Coverage
19. A5c #2
Frequency 2
A5c #2
Frequency 2
2 Sector Antenna Deployments
A5c #1
Frequency 1
A5c #1
Frequency 1
360º Coverage with 2 A5c 180º Coverage with 1 A5c
Each sector set uses same
frequency
No beam forming or dual PA gain
across composite 180º sector
20. Antenna Parameters for High Performance
Gain
Elevation Beamwidth (3 dB)
Down-tilt
Antenna Patterns
Front to Back Isolation Ratio
Cross polarization isolation
21. A5c Sector Recommendations
KP Performance X4
65º 4 Port
4.9-5.9 GHz
17.5 dBi
H/V 65º x 7.3º
MTI MT-464032/ND
65º 4 Port
4.9-5.9 GHz
16 dBi
H/V 65º x 7º
MTI MT-463042/ND
90º 4 Port
4.9-5.9 GHz
14 dBi
H/V 90º x 7º
WiBOX SA D4M64-90-16x SLIM
85º 4 Port
5.8-6.5 GHz
16 dBi
H/V 85º x 8º
22. Horn Versus Sector
70 Degrees of CoverageNo CoverageNo Coverage
RF Element Horn
60 Degree Spec – 0 Degree heading
13.2 dBi
KP Performance Antenna
65 Degree Spec at 0 Degree heading
17.5 dBi
60 Degrees
23. C5c Connectorized
Dual Mode Backhaul and PTMP Client
Bring Your Own Antenna Dual RP-SMA
Mimosa SRS Compatible A5 SRS client
Flexible PoE Powering 24-56 VDC Passive PoE
500+
Mbps
27
dBm
7 – 13W IP55
PTP: 4900-6400 MHz
2x2 11ac 2 RP-SMA
PTMP: 4900-6200 MHz
Now Available!
FCC DFS (U-NII-2a, U-NII-2c)
6200-6400 MHz operation where permitted for PTP
POE options (included in box)
- PoE Wall Plug or G2
Now Shipping
30. C5 Placement and Channel Reuse
C5 requires a minimum of -25 dBr signal separation between
RSSI from multiple A5 access points for same channel reuse.
AB
¡ C5 only has 10 dBr signal
separation on RSSI from A5 A
and B
¡ C5 unable to de-correlate
signals resulting in high PER
¡ A5 A & B need to be on
different channels
32. ¡ Choose the antenna rated for your frequency
¡ Understand antenna down tilt and affect on
ground coverage
¡ Use mastic tape to properly seal the antenna
cables
¡ Use high quality antenna cables
Common Mistakes to Avoid
35. Award-
Winning
Support
Team
¡ Direct chat/email/phone support
¡ RF experts
¡ Networking experts
¡ Most answers in 2 minutes
¡ Regional Field Engineers
¡ Product qualification, training, etc.
¡ Extensive knowledge base
¡ 500+ technical design/support articles