Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Reexamination Certificate
2007-10-05
2009-02-17
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
C333S175000, C333S185000, C333S202000, C333S219000
Reexamination Certificate
active
07492243
ABSTRACT:
A planar circuit having a conductive film on either main surface of a substrate. The conductive film on one of the main surfaces is patterned with two-dimensionally and repeatedly arranged unit cells, which are basic conductor patterns. Each of the unit cells has a capacitive region at the center thereof. Capacitance is induced between the center area and the conductor film formed on the main surface of the substrate opposite the center area. An area located near the middle of each of sides in the peripheral portion serves as an inductive region. In any two adjacent unit cells, the inductive regions have a multiple spiral-shaped conductor pattern, in which the center ends thereof are connected to each other at a halfway position between the two unit cells, and the outer peripheral ends thereof are connected to the capacitive regions.
REFERENCES:
patent: 6323740 (2001-11-01), Ishikawa et al.
patent: 6895262 (2005-05-01), Cortes et al.
patent: 2004/0041668 (2004-03-01), Mikami et al.
patent: 2000-101301 (2000-04-01), None
patent: 2001-168610 (2001-06-01), None
patent: 2001-308608 (2001-11-01), None
patent: 2002-335106 (2002-11-01), None
patent: 2003-92502 (2003-03-01), None
patent: 2003-258504 (2003-09-01), None
patent: 2004-15778 (2004-01-01), None
PCT/JP2006/305794 Copy of Written Opinion dated May 16, 2006.
PCT/JP2006/305794 Copy of International Search Report dated May 16, 2006.
Coccioli et al. “Aperture-Coupled Patch Antenna on UC-PBG Substrate” IEEE Transactions on Microwave Theory and Techniques, vol. 47, No. 11, Nov. 1999, pp. 2123-2130.
Yang et al. “A Novel TEM Waveguide Using Uniplanar Compact Photonic-Bandgap (UC-PBG) Structure” IEEE Transactions on Microwave Theory and Techniques, vol. 47, No. 11, Nov. 1999, pp. 2092-2098.
Qian et al. “Characteristics of Microstrip Lines on A Uniplanar Compact PBG Ground Plane”, 1988 Asia-Pacific Microwave Conference, pp. 589-592.
Hidaka Seiji
Mikami Shigeyuki
Dickstein , Shapiro, LLP.
Glenn Kimberly E
Lee Benny
Murata Manufacturing Co. Ltd
LandOfFree
Planar circuit, high-frequency circuit device, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Planar circuit, high-frequency circuit device, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Planar circuit, high-frequency circuit device, and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4122564