Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Reexamination Certificate
2007-03-27
2007-03-27
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
C333S230000
Reexamination Certificate
active
10332348
ABSTRACT:
The present invention provides a filter exhibiting excellent filter characteristics and having less number of stages. A dielectric substrate (1) has one surface connected to a top conductor (2) and an opposite surface connected to a bottom conductor (3). A pair of rows of via-holes connecting together the top conductor (2) and the bottom conductor (3) are formed along the signal transfer direction. A slit (6) is formed in a portion of the top conductor (2) overlying the central resonator among a plurality of resonators. The slit (6) extends in a direction perpendicular to the signal transfer direction. Slits (7, 8) are formed in each of portions of the top conductor (2) overlying resonators disposed at both ends. A coplanar waveguide (9) mounted on the top conductor (2) is connected to the slit (7).
REFERENCES:
patent: 5382931 (1995-01-01), Piloto et al.
patent: 6535083 (2003-03-01), Hageman et al.
patent: 6677837 (2004-01-01), Kojima et al.
patent: 6778041 (2004-08-01), Takahashi et al.
patent: 49-74463 (1974-07-01), None
patent: 10-93311 (1998-04-01), None
patent: 10-107518 (1998-04-01), None
patent: 10-303611 (1998-11-01), None
patent: 11-186836 (1999-07-01), None
patent: 11-274815 (1999-10-01), None
patent: 11-284409 (1999-10-01), None
patent: 11-312760 (1999-11-01), None
patent: 11-312903 (1999-11-01), None
patent: 11-346103 (1999-12-01), None
Ito Masaharu
Maruhashi Kenichi
Ohata Keiichi
Lee Benny
NEC Corporation
LandOfFree
Dielectric waveguide filter with inductive windows 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 Dielectric waveguide filter with inductive windows and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dielectric waveguide filter with inductive windows and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3771883