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Low Profile Surface Mount GPS Antenna

 Wi-Sys: Low Profile Surface Mount GPS Antenna
pdf data sheetWS3997 Datasheet.pdf
Features
  • Extremely compact dimensions
  • Very low profile
  • Rugged, compact all-plastic non corrosive housing
  • ¾ inch through-hole mount
  • Voltage range 2.7 - 5.0 V
  • LNA 28 dB gain typical
  • Low noise figure 1.5dB
  • Good out-of-band signal rejection
  • Small screw mounting holes
  • MCX jack connector
  • Value priced

WS3997 Surface Mount GPS Antenna

The WS3997 surface mount GPS Antenna provides very high performance in a very small form factor. It features a custom designed ceramic patch element that minimizes detuning effects caused by adjacent objects. This element, along with a low noise amplifier and SAW filter, enables the WS3997 to provide a consistent, clear signal while minimizing loss-of-lock when GPS conditions are less than ideal. The WS3997 is housed in a very compact all-plastic, non-corrosive low profile package. Designed for
permanent mount installations, the WS3997’s thru surface connector provides the lowest in-vehicle profile. Truly is the optimum choice for dependable, clear and consistent GPS signal reception. The WS3997 comes with a MCX jack connector, and a flying cable option is also available.

Designed for maximum GPS performance, the WS3997 antenna's advanced circuitry integrates a low-noise amplifier to ensure a most reliable and clear signal for the GPS receiver even in most difficult conditions. Where other GPS antennas fail, the WS3997's great out-of-band rejection and low noise characteristics can provide a very reliable signal - critical for improving acquisition times and minimizing outages.
Applications
  • Permanent Surface Mount Vehicle installations
  • Marine Vessel installations
  • Fleet Management & Telematics
  • Cellular Base Station Clocking and Timing
  • WLAN Wireless Broadband Clocking and Timing

Technical Specifications

Environmental Specifications temperature Operating: -40c to +85c (-45c to +85c storage)
humidity 95% max (non condensing)
Mechanical dimensions 44.28 mm dia. x 13.42 mm H
weight 26g
mounting 4x 4-40 screw mounting holes
connector TMCX jack
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 dBic
polarization Right Hand Circular
axial ratio @ 90° 4 dB
@ 20° 6 dB
Electrical voltage 2.7 - 5.0 VDC
current 15 mA @ 5V, 9 mA @ 3.5V
LNA Specifications frequency 1572.5 - 1578 MHz
output impedance 50 Ohm
VSWR 1.5:1 max (at connector)

gain

noise figure

@ 3.3VDC: 28 dB (typical)
@ 5VDC: 30 dB (typical)
1.5dB (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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