Saw filter having electrodes for relaxation of electric field co

Details Saw filter having electrodes for relaxation of electric field co Saw filter having electrodes for relaxation of electric field co

1995-01-13

1996-08-20

Lee, Benny

Wave transmission lines and networks

Coupling networks

Electromechanical filter

333195, 310313B, H03H 942, H03H 964

Patent

active

055482562

ABSTRACT:
An SAW filter includes an SAW substrate and input and output IDTs which are arranged on the SAW substrate at a prescribed distance from each other. The IDTs are provided on outer end portions along the surface wave propagation direction with electric field concentration relaxation electrodes extending from pairs of bus bars inwardly along oblique directions.

REFERENCES:
patent: 4420728 (1983-12-01), Bower
patent: 4486724 (1984-12-01), Schofield
patent: 4504759 (1985-03-01), Schofield

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