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Multiband Antennaspresents
New Solar Wedge antenna for the Orbcomm satellite network
Designed by Webb Industries
Solar Wedge
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
Solar Wedge - VSWR
Solar Wedge - Patterns
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
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
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