Antenna device, method and program for controlling...

Details Antenna device, method and program for controlling... Antenna device, method and program for controlling...

2007-04-10

2007-04-10

Ho, Tan (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S702000, C343S846000

Reexamination Certificate

active

11396841

ABSTRACT:
The present invention relates to an antenna device and enables the directivity of an antenna element to be changed without affecting the resonance frequency of the antenna element. The antenna device comprises a first grounded conductor, an antenna element mounted on the first grounded conductor via an insulator, a second grounded conductor disposed separate from the first grounded conductor, and a changing unit for changing directivity of the antenna element by adding the second grounded conductor to the first grounded conductor or canceling the addition thereof.

REFERENCES:
patent: 6865402 (2005-03-01), Gilbert
patent: 7084816 (2006-08-01), Watanabe
patent: 6-061727 (1994-03-01), None
patent: 8-279771 (1996-10-01), None
patent: 10-190347 (1998-07-01), None
patent: 2001-274616 (2001-10-01), None

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