Low Power Embedded GPS Antenna

Wi-Sys: WS3954 - Embedded GPS Antenna without ground planeWi-Sys: 3964 - Embedded GPS Antenna with internal ground plane
pdf data sheetpdf data sheet
High gain embedded antenna also available
Features
  • 2 mA @ 2.7 VDC
  • Available with or without internal ground plane
  • Extremely low noise figure: 1 dB
  • Excellent out-of-band signal rejection
  • Wide range of connector types available
  • Excellent low elevation angle coverage

WS3954/WS3964: Perfectly suited for OEM applications

The WS3954/WS3964 GPS antennas are ideal for personal GPS applications including handheld computers and PDAs. With an industry leading 2mA current, and compact size, the WS3954/WS3964 series is perfectly suited for OEM applications. And performance is not sacrificed; the antenna'still features a custom designed ceramic patch element along with a low noise amplifier and SAW filter, enabling the WS3954/WS3964 to provide a consistent, clear signal while minimizing loss-of-lock. Chose the WS3964 with an internal ground plane or the WS3954 without to suit your application.
Designed for low power use while maintaining GPS performance, the WS3954/WS3964 antenna's advanced circuitry integrates a SAW filter and low-noise amplifier to ensure a reliable and clear signal for the GPS receiver even in difficult conditions. The antenna design and industry leading low current draw makes the WS3954/WS3964 antenna ideal for portable or telematics applications using MONITOR, STANDBY or SLEEP modes.

The high performance 2 mA GPS antenna solution for OEM integrators

Technical Specifications

Environmental Specificationstemperature-40c to +80c operating
-45c to +80c storage
humidity95% max (non condensing)
Mechanicaldimensions28mmx28mmx9mm
1.1" x 1.1" x 0.35"

47mm 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 voltage2.5 - 3.3 VDC
current2.0 mA @ 2.7VDC(typical)
connectorMMCX (standard)
Other connector types available
LNA Specifications frequency1572.5 - 1578 MHz
output impedance50 Ohm
VSWR1.5:1 max (at connector)
gain@ 3.3VDC: 18 dB (typical)
noise figure1 dB
out-of-band rejection + 15 MHz: 10 dB / - 15 MHz: 30 dB
+ 20 MHz: 20 dB / - 20 MHz: 30 dB
+ 40 MHz: 40 dB / - 40 MHz: 40 dB