Download - Multiband Antennas presents
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Multiband Antennaspresents
New Solar Wedge antenna for the Orbcomm satellite network
Designed by Webb Industries
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Solar Wedge
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TECHNICAL SPECIFICATIONS Optional Optional Optional
ELECTRICAL Orbcomm GSM 2.4GHz Zigbee GPS
Rx Tx
FREQUENCY137-
138MHz148-
150.05MHz824-
960MHz 2.4GHz +/-5% 824-960MHz 1575MHz
ELEMENT GAIN -4.5 dBI (AHG) 0 dBi 0 dBi 0 dBi 5 dBiC
AXIAL RATIO < 3 dB
VSWR <2:1 <2:1 <=2.25:1 <=2.25:1 <=2.25:1 < 2:1
POLARISATION Linear Linear Linear LinearCIRCULAR
RHCP
DC GROUNDING YES YES YES YES
RADIATION PATTERN Omni Omni Omni Omni
AMPLIFIER GAIN > 26 dB (+/-
1 dB)
NF (@5V 21°C) <1,9 dB
VOLTAGE POWER SUPPLY 3-5 Vdc
CURRENT SINK < 20 mA
CABLE & CONNECTOR
Antenna CABLEs RG58 RG174 RG174 RG174 RG174
LENGTH 400CM 400 CM 400 CM 400 CM 400 CM
CONNECTOR TBA TBA TBA TBA TBA
DIMENSIONS 189mm x 189mm x 61mm
Instalation
Antenna needs to be installed on a metal surface, performance will vary unless groundplane is stable. Minimum suggest groundplane is 18” x 18” however, the antennas can be tuned to work on smaller
groundplanes
OPERATING TEMPERATURE -30C TO +80C
Solar Wedge
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Solar Wedge - VSWR
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Solar Wedge - Patterns
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Back view
Part #
Rev #
Date:
Scale
Desc.:
Project:
Material:
Treatment:
Finish:
Tolerance:
Margherita PeriniREV D AT E PARTIC ULAR S APP.
A10AA1597A
2006-11-22
1 : 4
General assy
Stellar Solar Wedge Short (SSW)
T EL : +27 11 444-2299 F A X: + 27 11 44 4-2288P.O. BO X 860, W EN DYW OOD, 2114, SOUT H AFR ICA
C 2 00 6 D
1 2 006-11-22 Fo r production
Medium
T erry Reuss T erry Reuss
TR
MP
BY
Parts ListFINISHTREATMENTMATERIALDESCRIPTIONPART NUMBERQTYITEM
AlundineRemove all burrs & sharp edges.
1.2mm thk Aluminum-6061
Base pl fur ther processA15FA0011A11
Leather grain white
Vacuum formed
ABS P lasticSolar panel coverA16AA0958A12
Solar panel assyA30AA0002A13
Notes:1. Dimensions are in millimeters unless otherwise noted.2. For tolerances, request our generic tolerance chart to see which tolerance would apply e.g. fine, medium or coarse.
204
525
2
52 154 52
76,9
329
279
57
132
8
20,1
12xn 5,5 THRU
n 15 THRU
Solar Wedge - Base Plate
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Reference Testing
• Performance of ACA miniBAR, WTT, MSA/BOH/Ribbit/Solar Wedge* compared to a popular low profile reference antenna**
• Stelperform comparison on vertical and horizontal metal surfaces – 40 byte messages sent every minute to satellite – max 60 messages per hour
• *All part of the same development now resulting in the Solar Wedge range and the RIBBIT
• **Popular low profile antenna is based on a ¼ wave design – not a ½ wave
BOH & ACA miniBAR
MSA aka WTT
Solar Wedge
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Date
TEST ANTENNA TYPE #
DURATION
GOOD RX
HIT RATE
GRx/HR
40 byte % of % of
AHG
2006 #
Msg
(hr)
(m) (%) (%) (%)
msg/hr
1/2-wave LPR3 dBi Comments
Communicator
03-Dec
568 Popular Antenna 446
24 39 11 40 28 18.1 22.6 100.0
-16.7 comparison 5284
Solar Wedge/RIBBIT
vertical 91624 39 17 58 29 37.2 46.5 205.4
-11.7 3403
Latest relative test results from Webb JBG
• 12.1% improvement on Time-to-live for Solar Wedge/Ribbit vs. Popular Antenna on 13-byte msgs
• We measure 45% improvement for Solar Wedge/Ribbit vs. Popular Antenna on Acquire Burst success
• We have measured a 5 dB improvement in gain for the Solar Wedge/Ribbit, confirmed using an array of attenuators and unity gain antenna