Multi-band antenna

Details Multi-band antenna Multi-band antenna

2008-08-06

2011-11-22

Dinh, Trinh (Department: 2821)

Communications: radio wave antennas

Antennas

Mesh, woven, braided or multiple strip

C343S893000, C343S834000, C343S799000

Reexamination Certificate

active

08063847

ABSTRACT:
A multi-band antenna is provided that operates in non-harmonically related frequency bands. The antenna includes a primary antenna element for a first frequency band of the non-harmonically related bands, said primary antenna element extending perpendicularly from a ground plane, the primary antenna element electrically isolated from the ground plane, a plurality of secondary elements extending from the ground plane parallel to the primary antenna element and arranged in a circle around the primary antenna element, each of said plurality of secondary elements electrically isolated from the primary antenna element and ground plane and a plurality of antenna elements for a second frequency band of a higher relative frequency than the first frequency band, the plurality of high frequency antenna elements extending parallel to the primary and secondary antenna elements and disposed in a circle around the secondary antenna elements.

REFERENCES:
patent: 3560978 (1971-02-01), Himmel et al.
patent: 5839282 (1998-11-01), Bronicki et al.
patent: 6919859 (2005-07-01), McCarthy et al.
patent: 7330154 (2008-02-01), Kanazawa
patent: 2003/0193446 (2003-10-01), Chen
patent: 2005/0237258 (2005-10-01), Abramov et al.
patent: 2007/0008236 (2007-01-01), Tillery et al.

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