Encapsulatable GPS Antenna for Marine & Submarine Applications

Wi-Sys: Encapsulatable GPS Antenna for Marine & Submarine Applications
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Features
  • Ideal for potted applications
  • Detuned ceramic patch element
  • Perforated RF Can
  • ESD circuit protection
  • Two stage LNA
  • SAW filter
  • 2.7 to 5 V operation
  • Optional cable types and lengths available
  • Wide range of connector types available
  • Low price

WS3967-P - Encapsulatable GPS Antenna for Marine & Submarine Applications

The WS3967-P Encapsulatable GPS antenna is especially designed for embedding in potting compound. It features a custom de-tuned ceramic patch element to compensate for the potting compound's detuning effect, as well as ESD circuit protection, a two stage low noise amplifier and a SAW filter, enabling the WS3967-P to provide great out-of-band signal rejection performance, consistent and clear signal while minimizing loss-of-lock. It also comes with a perforated RF shield for complete compound permeation and a 1.88" mini-ground plane for a sharper radiation pattern. The WS3967-P is the embedded GPS antenna of choice for marine, submarine and extreme weather technology OEMs.
Designed for easy encapsulation in potting compound, the WS3967-P antenna integrates a two-stage low-noise amplifier to ensure a reliable and clear signal for the GPS receiver even in most difficult conditions, as well as a SAW filter for even greater performance for telematics applications where out-of-band signal rejection is required.

Applications
  • Marine & Submarine Vessel Telematics
  • Wildlife & Marine Animal Tracking
  • GPS enabled Buoys and Un-manned Marine Vessels
  • Deep Sea and Off-shore Industry
  • Navy Radios and Systems
  • Weather Monitoring Systems

Technical Specifications

Environmental Specifications temperature -40c to +85c operating
-45c to +80c storage
humidity 95% max (non condensing)
Mechanical dimensions 47.8 mm diameter x 8.1mm
(1.88" diameter x 0.32")
shockVertical axis 50G
Other axes 30G
vibration3 axis, sweep = 15 min
10 - 200 Hz log sweep: 3G
Antenna Response frequency1575.42 MHz 25 MHz (approx.) prior to potting
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