Communications: radio wave antennas – Antennas – Slot type
Reexamination Certificate
2006-06-20
2006-06-20
Ho, Tan (Department: 2821)
Communications: radio wave antennas
Antennas
Slot type
C343S786000, C333S02100R
Reexamination Certificate
active
07064726
ABSTRACT:
An antenna apparatus includes two circular waveguides including a fixed-side circular waveguide and a rotation-side circular waveguide, each having a propagation mode in a TM01 mode, and being arranged coaxially with each other while a waveguide-side choke is provided between the two waveguides. A rectangular waveguide is connected to the fixed-side circular waveguide. Thereby, the high-frequency signal fed from the rectangular waveguide to the fixed-side circular waveguide can be radiated from a primary radiator to which the rotation-side circular waveguide is connected. While the circular waveguides and the waveguide-side choke can constitute a rotary joint, by rotating the primary radiator together with the rotation-side circular waveguide, scanning can be carried out with a high-frequency signal radiated from the primary radiator.
REFERENCES:
patent: 2427005 (1947-09-01), King
patent: 4574289 (1986-03-01), Henderson
patent: 5463358 (1995-10-01), Dunn et al.
patent: 6067390 (2000-05-01), Hames et al.
patent: 6246298 (2001-06-01), Ishikawa et al.
patent: 1 291 965 (2003-03-01), None
patent: 56-104201 (1981-08-01), None
patent: 64-51302 (1989-03-01), None
patent: 05-048316 (1993-02-01), None
patent: 06-334426 (1994-12-01), None
patent: 6-350326 (1994-12-01), None
patent: 08-078936 (1996-03-01), None
patent: 10-300848 (1998-11-01), None
patent: 11-017440 (1999-01-01), None
patent: 11-027036 (1999-01-01), None
patent: 11-038132 (1999-02-01), None
patent: 11-127001 (1999-05-01), None
patent: 2001-217634 (2001-08-01), None
patent: WO 2002/071539 (2002-09-01), None
Official Communication issued in the corresponding Japanese Application No. 2002-275488, dated Jan. 17, 2006.
Kitamori Nobumasa
Nagai Tomohiro
Ho Tan
Keating & Bennett LLP
Murata Manufacturing Co. Ltd.
LandOfFree
Antenna device and transmitting/receiving device 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 and transmitting/receiving device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antenna device and transmitting/receiving device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3623313