Dielectric filter

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

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

333134, H01P 1205, H01P 512

Patent

active

058642641

ABSTRACT:
A dielectric filter includes a dielectric ceramic block provided with three or more than three linearly arranged resonators. Coupling through bores are arranged between adjacent ones of the resonators and input/output pads are arranged vis-a-vis the respective outermost resonators for capacitive coupling. There are provided a pair of outer coupling electric paths extending from the respective input/output pads onto the open-circuit end surface which are arranged in juxtaposition with the respective outermost resonators with a coupling gap provided therebetween. A pair of inner coupling electric paths extends from the respective input/output pads onto the open-circuit end surface and are arranged between the outermost resonators in juxtaposition with the inner resonator or the respective inner resonators adjacent to the outermost resonators. A coupling gap is provided therebetween so as to remarkably reduce or eliminate the influence of the fly back x and consequently improve the attenuation performance of the dielectric filter.

REFERENCES:
patent: 4673902 (1987-06-01), Takeda et al.
patent: 4703291 (1987-10-01), Nishikawa et al.
patent: 4716391 (1987-12-01), Moutrie et al.
patent: 4896124 (1990-01-01), Schwent
patent: 4937542 (1990-06-01), Nakatuka
patent: 5045824 (1991-09-01), Metroka
patent: 5177458 (1993-01-01), Newell et al.
patent: 5250916 (1993-10-01), Zakman
patent: 5327110 (1994-07-01), Block
patent: 5499004 (1996-03-01), Noguchi et al.
Patent Abstracts of Japan, Pub. No. 04095401, Mar. 27, 1992, Motoharu et al .

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

Dielectric 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 Dielectric filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dielectric filter will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1453090

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