Communications: radio wave antennas – Antennas – With spaced or external radio wave refractor
Reexamination Certificate
2007-08-07
2007-08-07
Phan, Tho (Department: 2821)
Communications: radio wave antennas
Antennas
With spaced or external radio wave refractor
C343S754000, C343S853000
Reexamination Certificate
active
10535654
ABSTRACT:
A resonance element array200is disposed between a primary radiator1and a lens3. In the resonance element array200, resonance elements of linear conductors and variable reactance circuits are arranged on a dielectric substrate. A control voltage is applied to a fixed variable reactance circuit by a control portion so that a fixed resonance element is excited by an electromagnetic wave from the primary radiator1and the direction of optical path to be collimated by the lens3is electronically changed. Thus, an antenna device, in which a beam scanning is speeded, power consumption for the beam scanning is reduced, operation noise in the beam scanning is eliminated, the reliability is increased, and, when required, the beam direction can be directed to any direction, can be obtained. Furthermore, when necessary, the beam radiation pattern can be changed.
REFERENCES:
patent: 3971022 (1976-07-01), Lenz
patent: 4381566 (1983-04-01), Kane
patent: 4387378 (1983-06-01), Henderson
patent: 6133887 (2000-10-01), Tanizaki et al.
patent: 6188360 (2001-02-01), Kato et al.
patent: 2 250 865 (1992-06-01), None
patent: 01-311604 (1989-12-01), None
patent: 06-334432 (1994-12-01), None
patent: 11-127001 (1999-05-01), None
patent: 11-220302 (1999-08-01), None
patent: 2000-068729 (2000-03-01), None
patent: 2001-244720 (2001-09-01), None
patent: 2002-100906 (2002-04-01), None
patent: 2002-261533 (2002-09-01), None
patent: 2002-299952 (2002-10-01), None
A copy of the International Search Report and its English Language Translation issued for the parent PCT application, no date available.
Furuhi Tomoshige
Ishikawa Yohei
Dickstein , Shapiro, LLP.
Murata Manufacturing Co. Ltd.
Phan Tho
Tran Chuc
LandOfFree
Antenna device radio unit and radar does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Antenna device radio unit and radar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antenna device radio unit and radar will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3877382