Low Cost Embedded GPS Antenna

Wi-Sys: WS3950 - Low Price Embedded GPS Antenna without ground planeWi-Sys: WS3967 - Low Price Embedded GPS Antenna with internal ground plane
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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 Specificationstemperature-40c to +85c operating
-45c to +80c storage
humidity95% max (non condensing)
MechanicalWS395728mmx28mmx9mm
1.1" x 1.1" x 0.35"
WS396747mm diameter x 9mm
1.85" diameter x 0.35"
(with ground plane)
shockVertical axis 50G
Other axes 30G
vibration3 axis, sweep = 15 min
10 - 200 Hz log sweep: 3G
Antenna Response frequency1575.42 MHz
gain@ 90° 3 dBic
@ 20° -2.0 dBic
polarizationRight Hand Circular
axial ratio@ 90° 4 dB
@ 20° 6 dB
Electrical voltage2.7 - 5 VDC
current15 mA @ 5V, 9 mA @ 3.3V
connectorRight angle MCX
Other connector types available
cableShikoku Coax Cable p/n 1.5QEHV(TA)
cable length15 cm (6"), other lengths available
LNA Specifications frequency1572.5 - 1578 MHz
output impedance50 Ohm
VSWR1.5:1 max (at connector)
gain@ 3.3VDC: 28 dB (typical)
@ 5VDC: 30 dB (typical)
noise figure1.5 dB (typical)
out-of-band rejection +/- 15 MHz: 5 dB
+/- 20 MHz: 10 dB
+/- 30 MHz: 32 dB
+/- 40 MHz: 40 dB