Resonator type surface acoustic wave ladder filter with voltage

Details Resonator type surface acoustic wave ladder filter with voltage Resonator type surface acoustic wave ladder filter with voltage

1996-03-15

2000-01-25

Pascal, Robert

Wave transmission lines and networks

Coupling networks

Electromechanical filter

333195, 310313R, H03H 964

Patent

active

060182814

ABSTRACT:
To realizing a filter which is capable of properly controlling the passband, and the attenuation pole of a surface acoustic wave filter, a surface acoustic wave filter connected in a ladder type with the surface acoustic wave resonators 104, 105 has an element 106 which changes in capacity by voltage to be impressed and is connected in series with a resonator 105 connected in parallel to the signal line 100.

REFERENCES:
patent: 4011526 (1977-03-01), Kinsman
patent: 4166258 (1979-08-01), Tseng
patent: 4989264 (1991-01-01), Ohto
patent: 5010269 (1991-04-01), Hikita et al.
patent: 5107233 (1992-04-01), Stoft
patent: 5166646 (1992-11-01), Avanic et al.
patent: 5291159 (1994-03-01), Vale
patent: 5506552 (1996-04-01), Seki et al.
Abstract, 1640 E 77, Surface Acoustic Wave Filter, Kokai No. 52-19044, Feb. 14, 1977, Appl. No. 50-95184, Aug. 4, 1975, Nippon Denshin Denwa Kosha, Hiromichi Jumonji, JPC: 98(3)A32, Int. Cl.sup.2. H03H9/00.
Abstract, Band Pass Filter of Surface Acoustic Wave, 58-154917(A), Sep. 14, 1983, JP, Appl. No. 57-36410, Mar. 10, 1982, Hitachi Seisakusho, K.K., Mitsutaka Hikita, Int. Cl.sup.3. H03H9/64, H03H9/145.
Abstract, Polarized Type Saw Resonator Filter, 3-222512 (A), Oct. 1, 1991, JP, Appl. No. 2-16003, Jan. 29, 1990, Oki Electric Ind. Co. Ltd., Tomokazu Kmazaki (2), Int. Cl.sup.5. H03H9/64, H03H9/25.

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