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INTRODUCTION
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GPS ANTENNAS
GPS Antenna
-03
GPS 03antenna is the only innovating design antenna
with performance, quality and a Power protection circuit built-in to protect
the active LNA’s, and most importantly the host GPS receiver down the
connector end from the danger of a SHORT circuit external antenna (Note: GPS
receiver front-end can be destroyed or de-graded by an external GPS antenna in
an over-load or short conditions. The C-3 is a low profile GPS active antenna
system for the next generation multi-purpose GPS mobile antenna products for
Telematics, Fleet Management, Navigations and AVL applications. This small
print size of the antenna design does not reflect over-all performance, since
the antenna itself needs no ground plane aid to deliver the L1 band small
signal carrier that originates from the 24 orbiting USA satellites located
thousands of miles over-head and with the ground reception power sensitivity at
over -130dB. TheC-3antenna is also design as a standard power input voltages in
range from +2.5Vdc to +12Vdc with reverse polarity shutdown, over-current sense
shutdown and an EMC power line suppression. The most important over-all design
concept of theC-3 active antenna is the complete protections of the host
sensitive GPS receiver made from any manufacturer that it serve and can also be
destroy or de-grade using an improper design antenna.
General
2 Stages active LNA Dual Filters, (HPF & LPF(lump element))
+28dB gain Architecture Design Dielectric Patch antenna Low Noise Low drop-out,
Linear Regulator GPS receiver short circuit protect Low Loss RG/174 Coax cable
Aluminum Base/ PC+ Radome Plastic Performance Receiving Frequency L1
Band(1575MHz) Output Impedance 50 ohms Polarization’s Right Hand Circular
(RHC) Bandwidth 10dB Mhz @ -3dB point VSWR 1.5 Typical @ 1575MHz Elev.
Angle Coverage 5~90 degree Az. Bearing Coverage 360 degree
Filterin Dual(BPF <10 Mhz B/W, LPF @1576 MHz Stop-band @ 1585MHz) Over-all
Gain 28dB (typical including 4dB cable loss & Filters) Over-all NF
<1.8dB @fo, 2dB max. LNA
Characteristic
K=>1 Un-conditionally Stable RF Insertions loss 0.1dB, leakage
power 100mW /1 watt input Power Consumption 5 to 11mA (max) Power Input Sensor
Reverse Polarity Short Circuit shutdown Over-Current Sensor Thermal
Over-current shutdown >+150degreeC
Physical Dimensions 44 x 34 x 12mm +/-0.5mm Mount Magnetic Radome
Color Black Coax Connector BNC, SMA, SMB, MCX, MMCX, GT-5 Coax
Cable RG-174U double shielded 5m, Low Loss 0.7dB/m
Environmental Operating temperature -30 to + 85
degreeC Storage -40 to + 90 degreeC Option OEM
Hardware
1. Open Frame Antenna , with RF shield 2. Open Frame with 3”
Flanges & RF shield 3. Ant + Aluminum Base Electrical Power Input +2.5Vdc
to +12Vdc input, AutoSwitch wight 0.094 kg
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