Multi-resonant antenna

Details Multi-resonant antenna Multi-resonant antenna

1997-10-01

1999-12-07

Le, Hoanganh

Communications: radio wave antennas

Antennas

With radio cabinet

343795, 343729, 343790, H01Q 124, H01Q 928

Patent

active

059991321

ABSTRACT:
The present invention relates to antennas and in particular relates to a multi-resonant antenna. The present invention addresses the requirement for dual frequency antennas operable in two distinct frequency bands. In accordance with a first aspect of the invention, there is provided a multi-resonant antenna comprising first and second conductive elements which antenna elements extend relative to a ground plane; wherein the elements of the antenna structure are adapted to couple between themselves to provide a variable phase velocity for surface currents of the radio signals. A method of operation is also disclosed.

REFERENCES:
patent: 4509056 (1985-04-01), Ploussios
patent: 4829316 (1989-05-01), Nakasa et al.
patent: 4940989 (1990-07-01), Austin
patent: 5359340 (1994-10-01), Yokota
patent: 5416490 (1995-05-01), Popovic
patent: 5572227 (1996-11-01), Pal et al.
patent: 5604972 (1997-02-01), Mccarrick

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