Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Reexamination Certificate
2011-03-08
2011-03-08
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
C333S204000, C333S219000
Reexamination Certificate
active
07902944
ABSTRACT:
Provided are a stacked resonator capable of achieving miniaturization and minimum loss, and a stacked resonator capable of suppressing any unnecessary resonance mode due to interdigital-coupling. The stacked resonator includes a first conductor group having a plurality of conductor lines in a stacking arrangement, and a second conductor group having a plurality of other conductor lines in a stacking arrangement so as to be alternately provided opposing to the conductor lines in the first conductor group, thereby establishing an interdigital-coupling together with the first conductor group.
REFERENCES:
patent: 4418324 (1983-11-01), Higgins
patent: 6690251 (2004-02-01), Toncich
patent: 7652548 (2010-01-01), Yoshikawa et al.
patent: A-9-148870 (1997-06-01), None
patent: A 2003-218604 (2003-07-01), None
patent: WO2005/011046 (2004-07-01), None
Lee Benny
Oliff & Berridg,e PLC
Stevens Gerald
TDK Corporation
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