Surface elastic wave filter

Details Surface elastic wave filter Surface elastic wave filter

1976-12-21

1978-06-20

Smith, Alfred E.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

310313, 333 30R, H03H 904, H03H 926, H03H 932, H01L 4110

Patent

active

040964566

ABSTRACT:
A surface elastic wave filter in which Rayleigh waves experience only small attenuation and phase-shift, the number of radiating elements encountered by the surface wave during the wave propagation having a direction parallel to an axis xx through the filter, being restricted. The filter comprises at least one electromechanical transducer constituted by two metallic comb structures A and B whose teeth d.sub.A1, d.sub.A2, d.sub.A3 and d.sub.B1, d.sub.B2, d.sub.B3 are interdigitated and are arranged at either side of an axis yy in symmetrical fashion vis-a-vis a point M located upon said axis, at the center of the transducer. The filter can be used to the filtering of video-frequency signals in television circuits.

REFERENCES:
patent: 3582838 (1971-06-01), DeVries
patent: 3675163 (1972-07-01), Hartmann et al.
patent: 4007433 (1977-02-01), Houkawa et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1136926