Half wave ceramic filter with open circuit at both ends

Details Half wave ceramic filter with open circuit at both ends Half wave ceramic filter with open circuit at both ends

1995-10-10

1997-11-04

Lee, Benny

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333203, 333206, H01P 120

Patent

active

056844395

ABSTRACT:
A ceramic filter (100) with a transmission zero is disclosed. The filter (100) includes a block of dielectric material having top (102), bottom (104), and side surfaces (106, 108, 110 and 112), and having two or more metallized through-holes extending from the top to the bottom surfaces (102, 104), defining approximately half wave long resonators. The surfaces are substantially covered with a conductive material defining a metallized layer, with the exception that the top surface (102) is substantially uncoated, and with the additional exception that the bottom surface (104) is also substantially uncoated defining a filter with an open circuit at both ends. The filter (100) also has an input and an output (118, 120) and a mechanism or slot for electrically isolating successive resonators, extending about halfway between the top (102) and bottom surface (104). A filter constructed as detailed above, can have a higher Q value and lower insertion loss.

REFERENCES:
patent: 4431977 (1984-02-01), Sokola et al.
patent: 5023579 (1991-06-01), Bentivenga et al.
patent: 5081435 (1992-01-01), Yorita
patent: 5130683 (1992-07-01), Agahi-Kesheh et al.
patent: 5170141 (1992-12-01), Yamazaki et al.
patent: 5175520 (1992-12-01), Inoue
patent: 5291160 (1994-03-01), Ishikawa et al.
patent: 5489882 (1996-02-01), Ueno
patent: 5525946 (1996-06-01), Tsujiguchi et al.

Affiliated with

Also associated with

Rating

Half wave ceramic filter with open circuit at both ends does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Half wave ceramic filter with open circuit at both ends, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Half wave ceramic filter with open circuit at both ends will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1836027