Piezoelectric filter in a casing sealed by an insulating filler

Details Piezoelectric filter in a casing sealed by an insulating filler Piezoelectric filter in a casing sealed by an insulating filler

1992-09-15

1995-02-21

Lee, Benny

Wave transmission lines and networks

Coupling networks

Electromechanical filter

310348, 310355, H03H 910, H03H 958

Patent

active

053920120

ABSTRACT:
A piezoelectric filter device having one or more pairs of piezoelectric resonators for forming a ladder-type filter circuit, a plurality of terminal plates including an input and output terminal plates for electro-mechanically holding respective resonators at oscillation nodes, and a casing for containing the piezoelectric resonators and the terminal plates and having an opening which is closed by an insulating filler, in which the opening has an inner peripheral rough surface with which the insulating filler is securly bonded. The casing has a connecting extention extending from the bottom wall thereof which is longer than cranked or bent connecting legs of the input and output terminal plates. Alternatively, each cranked or bent connecting leg has a width larger than that of its tip portion to be connected to a printed-circuit board.

REFERENCES:
patent: 4656385 (1987-04-01), Tanaka
patent: 4864259 (1989-09-01), Takamoro et al.
patent: 5057802 (1991-10-01), Ozeki et al.

Affiliated with

Also associated with

Rating

Piezoelectric filter in a casing sealed by an insulating filler does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Piezoelectric filter in a casing sealed by an insulating filler , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piezoelectric filter in a casing sealed by an insulating filler will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1933725