Antenna device and radio communication apparatus

Details Antenna device and radio communication apparatus Antenna device and radio communication apparatus

2008-05-13

2008-05-13

Owens, Douglas W. (Department: 2821)

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

C343S7000MS, C343S702000, C343S850000, C343S876000, C343S845000

Reexamination Certificate

active

07372426

ABSTRACT:
An antenna device includes an antenna main body having at least three electricity feeding points and a feeder circuit for feeding an electrical signal to the antenna main body. The feeder circuit feeds electrical signals different in at least one of amplitude and phase to the electricity feeding points. The device enables to control the directivity with the use of a single antenna.

REFERENCES:
patent: 4538153 (1985-08-01), Taga
patent: 5714961 (1998-02-01), Kot et al.
patent: 5880694 (1999-03-01), Wang et al.
patent: 6252553 (2001-06-01), Solomon
patent: 2004/0189537 (2004-09-01), Kinuzawa et al.
patent: 2000-312112 (2000-11-01), None
McEwan et al.:“Compact WLAN Disc Antennas”IEEE Transactions on Antennas & Propagation,IEEE Service Center,vol. 50,No. 12,(Dec. 2002)p. 1862-1864.

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