Communications: radio wave antennas – Antennas – With radio cabinet
Reexamination Certificate
2005-12-06
2008-10-21
Dinh, Trinh Vo (Department: 2821)
Communications: radio wave antennas
Antennas
With radio cabinet
Reexamination Certificate
active
07439918
ABSTRACT:
An adaptive antenna apparatus includes antenna elements. One of the antenna elements has an electrical length L1larger than λ/2, and equal to or smaller than a predetermined upper-limit wavelength, where λ is a wavelength of a radio signal. Another antenna element has an electrical length L2equal to or larger than a predetermined lower-limit wavelength and equal to or smaller than λ/2. A controller adaptive-controls the adaptive antenna apparatus to form a radiation pattern of the adaptive antenna apparatus including a plurality of nulls substantively in a direction of an interference wave by adjusting at least one of an amplitude and a phase of each radio signal received by the first and second antenna elements.
REFERENCES:
patent: 5617102 (1997-04-01), Prater
patent: 5940040 (1999-08-01), Koyanagi et al.
patent: 6147651 (2000-11-01), Yamazaki et al.
patent: 6806844 (2004-10-01), Azuma
patent: 6888504 (2005-05-01), Chiang et al.
patent: 6924766 (2005-08-01), Tran
patent: 2003/0189518 (2003-10-01), Johnson et al.
patent: 61-227404 (1986-10-01), None
patent: 8-251099 (1996-09-01), None
patent: 8-288895 (1996-11-01), None
patent: 9-247031 (1997-09-01), None
patent: 10-242739 (1998-09-01), None
patent: 11-215022 (1999-08-01), None
patent: 11-284424 (1999-10-01), None
patent: 2001-111326 (2001-04-01), None
patent: 2001-313525 (2001-11-01), None
International Search Report issued Jun. 13, 2007 in the International (PCT) Application of which the present application is the U.S. National Stage.
International Preliminary Examination Report issued in PCT/JP2005/022377, Form PCT/IB/373, Form PCT/ISA/237, date of mailing Jun. 21, 2007.
Iwai Hiroshi
Koyanagi Yoshio
Ogawa Koichi
Yamamoto Atsushi
Dinh Trinh Vo
Duong Dieu Hien T
Matsushita Electric - Industrial Co., Ltd.
Wenderoth , Lind & Ponack, L.L.P.
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