Dual band antenna

Details Dual band antenna Dual band antenna

1998-12-10

2000-04-25

Le, Hoanganh

Communications: radio wave antennas

Antennas

Microstrip

343830, 343846, H01Q 138

Patent

active

06054953&

ABSTRACT:
An aperture-coupled antenna, comprising at least one antenna element including a number of substantially planar, mutually parallel radiating patches (1-3) being fed with microwave power from a feed network (6) via an aperture (5a, 5b) in a ground plane layer (4). The feed network (6) feeds microwave power in at least two separate frequency bands, including a first, relatively low frequency band and a second, relatively high frequency band. A first patch (2) radiates microwave power in the first frequency band and is provided with an aperture (9a, 9b) so as to couple microwave power in the second frequency band to a second patch (1), the microwave power in the second frequency band being fed from the feed network (6) via the apertures (5a, 5b; 9a, 9b) in the ground plane layer (4) and the first patch (2) to the second patch (1).

REFERENCES:
patent: 4903033 (1990-02-01), Tsao et al.
patent: 5030961 (1991-07-01), Tsao
patent: 5241321 (1993-08-01), Tsao
patent: 5355143 (1994-10-01), Zurcher et al.
patent: 5448250 (1995-09-01), Day
patent: 5633645 (1997-05-01), Day
IEEE AP-S Int. Symp., F. Y. Colomb et al, "Stacked patches with a slot in the common wall", Chicago, Jul. 1992, pp. 2077-2080.

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