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GPS Antenna Basics

This page covers GPS Antenna basics.It mentions GPS Antenna application note and GPS Antenna manufacturers.

Antenna is basically a electro-magnetic signal transmitter and receiver device which transmits signal to the air and receives signal from the air respectively. GPS Antenna works at GPS frequencies. The main type of antennas used for GPS applications are of patch and helix type. Refer Helix vs Patch antenna and types of antenna for more information.

GPS Antenna Application Note

GPS Antenna Ceramic patch type

Figure-1 depicts SGP series of GPS SMT patch antenna of ceramic type. Following are the typical specifications of GPS antenna from Taoglas.

•  Receive frequency: (1575.42 MHz +/- 1.023 MHz)
•  Center frequency: 1575.42 +/- 3 MHz
•  Bandwidth: 8 MHz (min.)
•  VSWR: 1.5 MAX.
•  Gain at zenith: 2 dBic (typical)
•  Axial ratio: 3 dB max.
•  Polarization: RHCP

GPS Antenna Manufacturers

Following are list of GPS antenna manufacturers of various types.
• Novatel Inc.
• Trimble Navigation Limited
• Garmin Ltd.
• Gilsson Technologies
• MEINBERG RADIO CLOCKS GmbH & Co. KG
• Linx Technologies, Merlin, US
• SAN JOSE TECHNOLOGY, INC.
• Lowrance
• Antcom Corporation

GPS RELATED LINKS

GPS Basics Tutorial  GPS Frame Structure  GPS vs AGPS   GPS vs GPRS  GPS Antenna  GPS Receiver Module  GPS Satellite  GPS Tracking System 

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