Wi-Sys WS3951-HR / WS3961-HR

Wi-Sys WS3951-HR / WS3961-HR

The WS3951-HR / WS3961-HR No Interference Embedded GPS Antennas with Dual SAW High Rejection Filter have the industry's best out-of-band filter performance.


These antennas feature a custom designed ceramic patch element that minimizes detuning effects caused by adjacent objects, ESD circuit protection, a patented two-stage low noise amplifier and a dual SAW high rejection filter. The WS3951-HR / WS3961-HR antennas provide the most consistent, clear GPS signal reception while minimizing loss-of-lock in high-RF fields. The WS3951 comes in a compact square package and the WS3961 comes with a 45.2mm diameter mini ground-plane.


  • WS3951-HR: without internal ground-plane
  • WS3961-HR: with internal ground-plane
  • Very high rejection dual SAW filter
  • Patented high performance dual LNA
  • High gain: 25.5 dB @ 5 V (typ.)
  • Low current: 7.5 mA @ 3.3 V (typ.)
  • 3.1 dB low noise figure
  • 15KV ESD circuit protection
  • RoHS compliant