Surface acoustic wave band-pass filter with different phase weig

Details Surface acoustic wave band-pass filter with different phase weig Surface acoustic wave band-pass filter with different phase weig

1990-03-08

1992-02-11

Gensler, Paul

Wave transmission lines and networks

Coupling networks

Electromechanical filter

310313B, 310313C, 333196, H03H 925

Patent

active

050879014

ABSTRACT:
At least one electro-acoustic transducer of a first surface acoustic wave device and acousto-electric transducers of a second surface acoustic wave device are arranged symmetrically to the first surface acoustic wave device about a line parallel to a propagating direction of surface acoustic wave and is phase-weighted differently from the remaining transducers having common phase-weighting, to improve an attenuation for stop frequency.

REFERENCES:
patent: 4468642 (1984-08-01), Hikita

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