Passive repeater for radio frequency communications

Passive repeater for radio frequency communications

Passive reply device for use in the automatic wireless transmiss

Passive retroreflective doppler shift system

Passive RF path diverter

Passive self-switching dual band array antenna

Passive sensing and encoding transponder

Passive stabilization conversion unit

Passive surface deployed variable inductance wire antenna

Passive synthetic aperture system for locating a source of elect

Passive temperature compensation scheme for microstrip antennas

Passive transponder apparatus for use in an interrogator-respond

Passive transponders using acoustic surface wave devices

Passive wireless transmit and receive terminator

Passive-type range determining system using scanning receiving d

Patch and cavity for producing dual polarization states with...

Patch antenna

Patch antenna

Patch antenna

Patch antenna