Compact bandpass filter for double conversion tuner

Wave transmission lines and networks – Coupling networks – Wave filters including long line elements

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C333S185000, C333S219000

Reexamination Certificate

active

07375604

ABSTRACT:
A bandpass filter includes a plurality of resonators on a printed circuit board. An input pin is connected to a first resonator of the plurality of resonators. An output pin is connected to a second resonator of the plurality of resonators. The first and second resonators are magnetically coupled to each other. The first and second resonators are coupled to other resonators using mixed coupling. The other resonators are coupled to each other using electric coupling.

REFERENCES:
patent: 4418324 (1983-11-01), Higgins
patent: 4423396 (1983-12-01), Makimoto et al.
patent: 4488130 (1984-12-01), Young et al.
patent: 4740765 (1988-04-01), Ishikawa et al.
patent: 4757285 (1988-07-01), Krause
patent: 4801905 (1989-01-01), Becker
patent: 4881043 (1989-11-01), Jason
patent: 5192926 (1993-03-01), Sogo et al.
patent: 5739193 (1998-04-01), Walpita et al.
patent: 5825263 (1998-10-01), Falt
patent: 5896073 (1999-04-01), Miyazaki et al.
patent: 5949295 (1999-09-01), Schmidt
patent: 5955931 (1999-09-01), Kaneko et al.
patent: 5986525 (1999-11-01), Sasaki et al.
patent: 6100761 (2000-08-01), Ezell
patent: 6108569 (2000-08-01), Shen
patent: 6130189 (2000-10-01), Matthaei
patent: 6130591 (2000-10-01), Tsuzuki
patent: 6191665 (2001-02-01), Chan et al.
patent: 6252476 (2001-06-01), Maloratsky
patent: 6259752 (2001-07-01), Domino et al.
patent: 6288609 (2001-09-01), Brueske et al.
patent: 6411181 (2002-06-01), Ishikawa et al.
patent: 6438394 (2002-08-01), Zhang et al.
patent: 6448640 (2002-09-01), Corisis
patent: 6448873 (2002-09-01), Mostov
patent: 6486754 (2002-11-01), Hidaka et al.
patent: 6496710 (2002-12-01), Tsuzuki
patent: 6522217 (2003-02-01), Shen
patent: 6597265 (2003-07-01), Liang et al.
patent: 6639909 (2003-10-01), Sakuma
patent: 6700459 (2004-03-01), Raihn et al.
patent: 6771774 (2004-08-01), Phan et al.
patent: 2003/0128085 (2003-07-01), Gomez et al.
patent: 2005/0093661 (2005-05-01), Gomez et al.
patent: 0 506 476 (1992-09-01), None
patent: 5-308204 (1993-11-01), None
patent: 8-65007 (1996-03-01), None
patent: 11-317603 (1999-11-01), None
Gil Technologies, GML-100 High Frequency laminate, http://www.shfmicro.com/gil20.pdf.
Kuo, J.-T., et al., “Microstrip Elliptic Function Filters with Compact Miniaturized Hairpin Resonators,” IEEE, pp. 861-864 (1999).
European Patent Office English-language Abstract for JP 05308204, published Nov. 19, 1993, 1 page.
European Patent Office English-language Abstract for JP 08065007, published Mar. 8, 1996, 1 page.
European Patent Office English-language Abstract for JP 11317603, published Nov. 16, 1999, 1 page.
European Search Report from European Patent Application No. 03250090.2, dated Jan. 14, 2004, 3 pages.
Matthaei, G. et al.,Microwave Filters, Impedance-Matching Networks, and Coupling Structures, Artech House, Inc., entire book submitted (1980).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Compact bandpass filter for double conversion tuner does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compact bandpass filter for double conversion tuner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compact bandpass filter for double conversion tuner will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2813710

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.