Communications: radio wave antennas – Antennas – With radio cabinet
Patent
1980-11-25
1983-04-12
Moore, David K.
Communications: radio wave antennas
Antennas
With radio cabinet
343744, H01Q 124
Patent
active
043800114
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).
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Takeda, et al., "FM Multipath Distortion in Automobile Receivers Has Been Significantly Reduced by a New Antenna System," IEEE _Transactions on Consumer Electronics, vol. CE-26, No. 3, Aug. 1980, pp. 263-269.
Torres Rafael
Woodward Oakley M.
Berard Jr. Clement A.
Moore David K.
Rasmussen P. J.
RCA Corporation
Whitacre E. M.
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