Antipilferage markers

Battery-powered RF tags and apparatus for manufacturing the same

Beacon-on-demand radar transponder

Circuit arrangement for generating a control signal in dependenc

Circuit arrangement for obtaining a constant field strength of a

Circularly polarizing radar transponder and lifesaving...

Device for controlling discharge of a charge capacitor in a tran

Device for information transmission

Device for wireless transfer of information

Diode modulator for radio frequency transponder

Diode receiver for radio frequency transponder

Dual frequency EAS tag with deactivation coil

Electrically powered postage stamp or mailing or shipping label

Electronic transponder tuning circuitry

Electronic transponder tuning procedure

Encapsulated antenna in passive transponders

Inductive antenna coupling for a surface acoustic wave transpond

Inductive input/output coupling for a surface acoustic wave devi

Insulated underground antenna and method for utilizing same

Method and apparatus for attaching a radio frequency...