Low Cost Embedded GPS Antenna

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The Wi-Sys Antenna Family

WS3910
The high gain active GPS antenna with SAW filter

WS3914
Our lowest current model, 2 mA active GPS antenna

WS3916
Low cost GPS antenna

WS3917
Low cost GPS antenna

WS3940
Glass Mount combined Active GPS and Cellular

WS3940-ULD
Embedded, Glass Mount combined Active GPS and Cellular

WS3942
Mag Mount combined Active GPS and Cellular

WS3950
WS3960
The high gain embedded patch antenna with optional ground plane

WS3954
WS3964
The low power embedded patch antenna with optional ground plane

WS3977
Through-hole Mount GPS Antenna

Low Cost Embedded GPS Antenna

Wi-Sys: WS3950 - Low Price Embedded GPS Antenna without ground plane

Wi-Sys: WS3967 - Low Price Embedded GPS Antenna with internal ground plane

pdf data sheet

Features

2.7 - 5 V operation
Available with or without internal ground plane
Optional cable types and lengths available
Wide range of connector types available
Excellent low elevation angle coverage
Ideal for embedded applications
Low price

WS3957 / WS3967 - Embedded GPS Antenna

The WS3957/WS3967 GPS antenna series is ideal for handheld GPS devices, mobile asset tracking equipment and GPS clock & timing applications. With its compact size and low price, the WS3957/WS3967 series is perfectly suited for OEM applications. The WS3957/WS3967 series features a custom designed ceramic patch element, a two-stage low noise amplifier and a SAW filter, enabling the WS3957/WS3967 series to provide great out-of-band signal rejection performance, consistent and clear signal while minimizing loss-of-lock. The WS3957 comes in a compact square package and the WS3967 comes with a 1.85" mini-ground plane.

Designed for easy integration into a variety of OEM platforms, the WS3957/WS3967 series integrates a two-stage low-noise amplifier to ensure a reliable and clear signal for the GPS receiver even in difficult conditions, as well as a SAW filter for even greater performance for telematics applications where out-of-band signal rejection is required.

Applications

Portable Telematics
Automotive Navigation Systems
Fleet Management & Telematics Systems
Marine Navigation Systems
Asset Tracking Equipment
Military Radios and In-Vehicle-Systems
Law Enforcement Radios and In-Vehicle-Systems
WLAN, WiMax and Cellular Base Station GPS Clock and Timing Systems

Technical Specifications

Environmental Specifications	temperature	-40c to +85c operating -45c to +80c storage
Environmental Specifications	humidity	95% max (non condensing)
Mechanical	WS3957	28mmx28mmx9mm 1.1" x 1.1" x 0.35"
	WS3967	47mm diameter x 9mm 1.85" diameter x 0.35" (with ground plane)
	shock	Vertical axis 50G Other axes 30G
	vibration	3 axis, sweep = 15 min 10 - 200 Hz log sweep: 3G
Antenna Response	frequency	1575.42 MHz
	gain	@ 90° 3 dBic @ 20° -2.0 dBic
	polarization	Right Hand Circular
	axial ratio	@ 90° 4 dB @ 20° 6 dB
Electrical	voltage	2.7 - 5 VDC
	current	15 mA @ 5V, 9 mA @ 3.3V
	connector	Right angle MCX Other connector types available
	cable	Shikoku Coax Cable p/n 1.5QEHV(TA)
	cable length	15 cm (6"), other lengths available
LNA Specifications	frequency	1572.5 - 1578 MHz
	output impedance	50 Ohm
	VSWR	1.5:1 max (at connector)
	gain	@ 3.3VDC: 28 dB (typical) @ 5VDC: 30 dB (typical)
	noise figure	1.5 dB (typical)
	out-of-band rejection	+/- 15 MHz: 5 dB +/- 20 MHz: 10 dB +/- 30 MHz: 32 dB +/- 40 MHz: 40 dB

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