Multiband antenna for automotive vehicle

Details Multiband antenna for automotive vehicle Multiband antenna for automotive vehicle

1995-09-05

1997-07-22

Hajec, Donald T.

Communications: radio wave antennas

Antennas

With vehicle

343744, H01Q 132

Patent

active

056507917

ABSTRACT:
A multiband antenna for mounting on glass for an automotive vehicle window is disposed around the periphery of the window to provide a long length for the AM antenna. A series capacitor decouples one end of the AM monopole antenna from ground. The capacitive element acts as a short circuit at FM frequencies to facilitate operation of the antenna as a dipole for FM signals. A pair of inductive elements is connected in series with the antenna radiating element to effectively trim the length of the antenna to a resonant length for FM frequencies.

REFERENCES:
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patent: 4184164 (1980-01-01), Rod
patent: 4331961 (1982-05-01), Davis
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patent: 4527164 (1985-07-01), Cestaro et al.
patent: 4791426 (1988-12-01), Lindenmeier et al.
patent: 5442368 (1995-08-01), Harada et al.

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