Acoustic surface wave filter having combined split-isolated and

Details Acoustic surface wave filter having combined split-isolated and Acoustic surface wave filter having combined split-isolated and

1976-01-02

1976-10-19

Smith, Alfred E.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

310 98, 333 30R, H03H 926, H03H 932, H01L 4104, H01L 4110

Patent

active

039873790

ABSTRACT:
An acoustic surface wave filter has offset transmitting and receiving transducers formed on the wave propagating surface of a piezoelectric substrate. A two-segment multistrip coupler is interposed on the propagating surface and provides "track switching" or "sidestepping" action for signals within the coupler passband. The coupler includes a split-connected portion formed by electrically connected filamentary conductor pairs and a split-isolated portion formed by electrically continuous filamentary conductors and interleaved conductors having a discontinuity at their center. The split-connected portion attenuates the symmetrical mode components of acoustic waves within the coupler stop band while the split-isolated portion attenuates the anti-symmetrical mode portion of acoustic waves within the coupler stop band, producing an improved trap response.

REFERENCES:
patent: 3836876 (1974-09-01), Marshall et al.
patent: 3947783 (1976-03-01), Maerfeld

Affiliated with

Also associated with

Rating

Acoustic surface wave filter having combined split-isolated and does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acoustic surface wave filter having combined split-isolated and , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic surface wave filter having combined split-isolated and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-105355