Acoustically driven plasma antenna

Active antenna

Active antenna

Amplified FM antenna with parallel radiator and ground plane

Antenna arrangements

Antenna circuit of the negative impedance type

Antenna having reconfigurable length

Antenna structure and installation

Antenna structure and installation

Antenna structure and installation

Antenna structure for a magnetic resonance device

Antenna system for a wireless device

Antenna with inherent filtering action

Apparatus and method for generating a fluid antenna

Azimuth steerable antenna

Broad band system operating in the submillimeter wave range

Condition responsive RF transmitting device

Confined plasma resonance antenna and plasma resonance...

Detector and modulator circuits for passive microwave links

Detector for electromagnetic radiation and a method of...