Loop antenna arrangement for inclusion in a television receiver

Abstract

A VHF television receiving antenna arrangement includes a cabinet having a loop of electrically conductive material disposed on its top, back and sides, preferrably on the inside surfaces thereof. A gap in the loop defines first and second feed terminals to which circuitry for tuning the loop connects. The loop is tuned thereby over at least a portion of the television frequency bands, responsive to a control voltage. Signals from the tuning circuitry are coupled to a television receiver tuner by a transmission line. Such loops can also have capacitors connected across tuning gaps for making the directional response of the loop more uniform at relatively lower frequencies (e.g. VHF channels 2-6) or switching diodes connected across control gaps for changing the directional response of the loop at relatively higher frequencies (e.g. VHF channels 7-13).