HOME > Products > Antenna Products > GPS antenna
UG-003 Innovative New Design GPS Antenna

1. RF protection in front-end , protect any kind of receives in the GPS market.
2. Standard WAAS tune from our antennas
3. Short-circuit protection as standard design
4. Wide power supplier voltage from +2.5~12V
5. Narrow band-width<=30 MHz.
6. Cable can be up to >10 meters even for small patch antenna.

UG-003 GPS
antenna 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 UG-003 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. The UG-003 antenna 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 the UG-003 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.

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
Receiving Frequency
L1 Band(1575MHz)
Output Impedance
50 ohms
Right Hand Circular (RHC)
10dB Mhz @ -3dB point
1.5 Typical @ 1575MHz
Elev. Angle Coverage
5~90 degree
Az. Bearing Coverage
360 degree
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
44 x 34 x 12mm +/-0.5mm
Radome Color
Coax Connector
Coax Cable
RG-174U double shielded 5m, Low Loss 0.7dB/m
Operating emperature
-30 to + 85 degreeC
-40 to + 90 degreeC
OEM Hardware
1. Open Frame Antenna , with RF shield
2. Open Frame with 3” Flanges & RF shield
3. Ant + Aluminum Base
Power Input
+2.5Vdc to +12Vdc input, AutoSwitch


Use Link Group Co., Ltd.
Head Office (Taiwan)

4F.,No. 495 ,Guangfu South Rd. Xinyi Disc., Taipei , 11074, Taiwan (R.O.C.)
TEL : 886-2-27588816   FAX : 886-2-27582006

Factory Location
Thailand : No.9 Soi Koo Bon 31, Lane 8, Koo Bon Road,Kunnayao District , Bangkok , 10230 Thailand.
TEL : 66-2-9434052   FAX : 66-2-9434395

China : B3,Xinfeng West 3Rd., Mowu Village ,Wan Jiang District, Dong Guan City , Guang Dong Province.
TEL : +86-769-2203-3699   FAX : +86-769-2277-5542

E-Mail : fkkchang@seed.net.tw ; sales@uselink.com.tw