Bi-frequency symmetrical patch antenna

Details Bi-frequency symmetrical patch antenna Bi-frequency symmetrical patch antenna

2007-05-08

2007-05-08

Nguyen, Hoang V. (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S850000

Reexamination Certificate

active

11168391

ABSTRACT:
A bi-frequency symmetrical patch antenna includes two bi-frequency symmetrical radiation units, each having a first band radiation section and two second band radiation sections, to radiate a feed-in signal in a selected direction. Further, the antenna has a power distribution unit, to evenly distribute the feed-in power, corresponding to the feed-in signal, to each bi-frequency symmetrical radiation unit. The power distribution unit has two side arms connecting respectively to each bi-frequency symmetrical radiation unit to increase the bandwidth range of the bi-frequency antenna.

REFERENCES:
patent: 3887925 (1975-06-01), Ranghelli et al.
patent: 6859176 (2005-02-01), Choi
patent: 2001/0007446 (2001-07-01), Amano

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