Encapsulatable GPS Antenna for Marine & Submarine Applications

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The Wi-Sys Antenna Family

WS3910
The high gain active GPS antenna with SAW filter

WS3914
Our lowest current model, 2 mA active GPS antenna

WS3916
Low cost GPS antenna

WS3917
Low cost GPS antenna

WS3940
Glass Mount combined Active GPS and Cellular

WS3940-ULD
Embedded, Glass Mount combined Active GPS and Cellular

WS3942
Mag Mount combined Active GPS and Cellular

WS3950
WS3960
The high gain embedded patch antenna with optional ground plane

WS3954
WS3964
The low power embedded patch antenna with optional ground plane

WS3957
WS3967
The low price embedded patch antenna with optional ground plane

WS3977
Through-hole Mount GPS Antenna

Encapsulatable GPS Antenna for Marine & Submarine Applications

pdf data sheet

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
Environmental Specifications	humidity	95% max (non condensing)
Mechanical	dimensions	47.8 mm diameter x 8.1mm (1.88" diameter x 0.32")
	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 25 MHz (approx.) prior to potting
	gain	@ 90° 3 dBic @ 20° -2.0 dBic
	polarization	Right Hand Circular
	axial ratio	@ 90° 4 dB @ 20° 6 dB
Electrical	voltage	2.7 - 5 VDC
	current	15 mA @ 5V, 9 mA @ 3.3V
	connector	Right Angle MCX other connector types available
	cable	Shikoku Coax Cable p/n 1.5QEHV(TA)
	cable length	15 cm (6"), other lengths available
LNA Specifications	frequency	1572.5 - 1578 MHz
	output impedance	50 Ohm
	VSWR	1.5:1 max (at connector)
	gain	@ 3.3VDC: 28 dB (typical) @ 5VDC: 30 dB (typical)
	noise figure	1.5 dB (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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