AM-FM-CB Disguised antenna system

Details AM-FM-CB Disguised antenna system AM-FM-CB Disguised antenna system

1977-04-25

1979-02-20

Smith, Alfred E.

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

343715, 333 76, H01Q 150, H01Q 132, H01H 710

Patent

active

041410165

ABSTRACT:
A vehicle-mounted antenna simultaneously coupled via a passive electrical network to a 40-channel Citizens band transceiver and to an AM-FM receiver is disclosed. A non-loaded whip antenna, sized to be electrically short at Citizens band frequencies, is cowl-mounted in a conventional manner to present the dimensions and generaly appearance of a standard broadcast band car radio antenna. The passive electrical coupling network includes a broadband compensated, quarter-wave transmission line transformer for impedance matching the electrically short antenna to the Citizens band transceiver, and associated L-C circuits for selectively blocking, bypassing and separating AM and FM band signals relative to each other and to Citizens band signals. The disclosed antenna with its associated network provides excellent AM-FM radio receiver reception while presenting to the Citizens band transceiver a voltage standing wave ratio of 1.5:1 or better.

REFERENCES:
patent: 3100893 (1963-08-01), Brueckmann
patent: 3665310 (1972-05-01), Tweed, Jr.
patent: 3725942 (1973-04-01), Ukmar
patent: 3733608 (1973-05-01), McGhay et al.
patent: 4037177 (1977-07-01), Tyrey

Affiliated with

Also associated with

Rating

AM-FM-CB Disguised antenna system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with AM-FM-CB Disguised antenna system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and AM-FM-CB Disguised antenna system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-260611