Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Reexamination Certificate
2006-12-22
2008-12-09
Ham, Seungsook (Department: 2817)
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
C333S026000
Reexamination Certificate
active
07463120
ABSTRACT:
A high frequency filter comprises a first resonator and a second resonator provided inside a layered substrate. The first and second resonators are inductively coupled and capacitively coupled to each other through a first capacitor and a second capacitor connected to each other in parallel. The first capacitor is formed using first and third electrodes and a dielectric layer. The first electrode is connected to the first resonator via a through hole. The third electrode is connected to the second resonator and opposed to the first electrode. The second capacitor is formed using second and fourth electrodes and the dielectric layer. The second electrode is connected to the second resonator via a through hole. The fourth electrode is connected to the first resonator and opposed to the second electrode.
REFERENCES:
patent: 6351239 (2002-02-01), Mizuno et al.
patent: 7126444 (2006-10-01), Fukunaga et al.
patent: 2004/0095212 (2004-05-01), Iwasaki et al.
patent: 2007/0120627 (2007-05-01), Kundu
patent: 2007/0152780 (2007-07-01), Liao et al.
patent: U 05-78003 (1993-10-01), None
patent: A 2000-022404 (2000-01-01), None
patent: A-2001-217607 (2001-08-01), None
patent: A-2002-299905 (2002-10-01), None
patent: A 2005-045447 (2005-02-01), None
patent: A 2005-080248 (2005-03-01), None
U.S. Appl. No. 11/643,963, filed on Dec. 22, 2006 in the name of Hideya Matsubara et al.
Matsubara Hideya
Okada Atsunori
Toda Shinichiro
Tomaki Shigemitsu
Ham Seungsook
Oliff & Berridg,e PLC
TDK Corporation
LandOfFree
High frequency filter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High frequency filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High frequency filter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4049494