Ceramic filter with recessed shield

Details Ceramic filter with recessed shield Ceramic filter with recessed shield

1998-04-02

1999-09-28

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333134, 333207, H01P 1205

Patent

active

059595116

ABSTRACT:
A ceramic filter with recessed shield 200 is provided. Filter 200 contains a filter body with a block of dielectric material having a top surface 202, a bottom surface 204, and side surfaces 206, 208, 210 and 212 respectively. Filter 200 also has a plurality of metallized through-holes 214 extending from the top surface 202 to the bottom surface 204 defining resonators. Each of the resonators has a corresponding plurality of embedded receptacles 220, which contain an unmetallized area therein, adjacent to the plurality of metallized through-holes 214, providing a ring of isolation 222. A recessed channel 224 extends perpendicularly across each of the plurality of embedded receptacles 220 and has a groove 226 therein which is complementarily configured to receive a metallic shield 228. The metallic shield 228 is disposed in the recessed channel 224 and is connected to the metallization layer of the plurality of embedded receptacles 220. The metallic shield 228 is attached to the dielectric block with a design that reduces the size and volume of the filter 200.

REFERENCES:
patent: 4431977 (1984-02-01), Sokola et al.
patent: 4506241 (1985-03-01), Makimoto et al.
patent: 4733208 (1988-03-01), Ishikawa et al.
patent: 4742562 (1988-05-01), Kommrusch
patent: 4757284 (1988-07-01), Ueno
patent: 5124676 (1992-06-01), Ueno
patent: 5157365 (1992-10-01), Hoang
patent: 5512866 (1996-04-01), Vangala et al.
patent: 5517163 (1996-05-01), Sagawa et al.
patent: 5537082 (1996-07-01), Tada et al.
patent: 5559485 (1996-09-01), Matsuo et al.
patent: 5696473 (1997-12-01), Tsujiguchi et al.

Affiliated with

Also associated with

Rating

Ceramic filter with recessed shield does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ceramic filter with recessed shield, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ceramic filter with recessed shield will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-707901