Multi-frequency band rod antenna

Details Multi-frequency band rod antenna Multi-frequency band rod antenna

1997-04-23

1999-07-20

Wong, Don

Communications: radio wave antennas

Antennas

With vehicle

343713, H01Q 132

Patent

active

059261439

ABSTRACT:
A multiple frequency antenna and coupler are disclosed that establish a low noise communication path from a multiple frequency wireless telephone or multiple single frequency telephones, each operating at a different frequency, in a vehicle to the exterior of the vehicle. The coupler includes internal and external elements that are oriented face to face with each other, with a windshield sandwiched between them. Each element is tapered, and the elements are juxtaposed with each other such that the wider end of one element is generally opposite the narrower end of the other. A multiple frequency radiator is attached to the external element. The radiator includes plural radiating elements that are separated from each other and that are attached to a common base, with each radiating element being configured for radiating a respective frequency.

REFERENCES:
patent: 2966678 (1960-12-01), Harris
patent: 3541567 (1970-11-01), Francis et al.
patent: 3550145 (1970-12-01), Tai
patent: 4658259 (1987-04-01), Blaese
patent: 4916456 (1990-04-01), Shyu
patent: 5177493 (1993-01-01), Kawamura
patent: 5283589 (1994-02-01), Blevins
patent: 5451966 (1995-09-01), Du et al.
patent: 5619214 (1997-04-01), Lindenmeier et al.

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