Wave transmission lines and networks – Coupling networks – Electromechanical filter
Patent
1994-08-17
1997-11-18
Lee, Benny
Wave transmission lines and networks
Coupling networks
Electromechanical filter
310320, 310368, H03H 7075, H03H 954
Patent
active
056892209
ABSTRACT:
A ladder-type filter having a circuit structure obtained by connecting a plurality of series resonators and a plurality of parallel resonators with each other. At least two plate-type resonators are laterally coupled with each other with respect to a mounting surface. At least one of the series and parallel resonators is an energy trap type piezo-resonator having a plate type piezoelectric vibrating part, a support part which is coupled to the piezoelectric vibrating part, and a holding part which is coupled to the support part.
REFERENCES:
patent: 2443471 (1948-06-01), Mason
patent: 3185943 (1965-05-01), Honda et al.
patent: 3411023 (1968-11-01), Quate et al.
patent: 3488530 (1970-01-01), Staudte
patent: 3723920 (1973-03-01), Sheahan et al.
patent: 3745385 (1973-07-01), Nakajima et al.
patent: 4101795 (1978-07-01), Fukomoto et al.
patent: 4287493 (1981-09-01), Masaie
patent: 4323865 (1982-04-01), Tanaka et al.
patent: 4348609 (1982-09-01), Inoue
patent: 4350918 (1982-09-01), Sato
patent: 4355257 (1982-10-01), Kawashima et al.
patent: 4356421 (1982-10-01), Shimizu et al.
patent: 4365181 (1982-12-01), Yamamoto
patent: 4443728 (1984-04-01), Kudo
patent: 4447753 (1984-05-01), Ochiai
patent: 4454444 (1984-06-01), Fujiwara et al.
patent: 4462092 (1984-07-01), Kawabuchi et al.
patent: 4484382 (1984-11-01), Kawashima
patent: 4511202 (1985-04-01), Kasai
patent: 4555682 (1985-11-01), Gounji et al.
patent: 4562372 (1985-12-01), Nakamura et al.
patent: 4564825 (1986-01-01), Takahashi et al.
patent: 4571794 (1986-02-01), Nakamura
patent: 4609844 (1986-09-01), Nakamura et al.
patent: 4757581 (1988-07-01), Yamada et al.
patent: 4900971 (1990-02-01), Kawashima
patent: 5001383 (1991-03-01), Kawashima
patent: 5006824 (1991-04-01), Paff
patent: 5059853 (1991-10-01), Kawashima
patent: 5107164 (1992-04-01), Kimura
patent: 5117147 (1992-05-01), Yoshida
patent: 5118980 (1992-06-01), Takahashi
patent: 5159301 (1992-10-01), Kaida et al.
patent: 5192925 (1993-03-01), Kaida
patent: 5218260 (1993-06-01), Kawashima
patent: 5260675 (1993-11-01), Ogawa et al.
patent: 5274297 (1993-12-01), Hermann et al.
patent: 5302880 (1994-04-01), Kaida
patent: 5341550 (1994-08-01), Kaida
patent: 5394123 (1995-02-01), Inoue et al.
patent: 5422532 (1995-06-01), Inoue et al.
patent: 5442251 (1995-08-01), Kaida et al.
Transducers & Their Elements: Design & Application, Alexander D. Khazan "Strain-gage Elements," p. 41, 1993.
Mechanical Vibrations, J.P. Den Hartog, 1984, "3.2. The Undamped Dynamic Vibration Absorber.", pp. 87-93.
Vibration Engineering, Osamu Taniguchi, pp. 112-116, and English Translation.
Co-pending Patent Application No. 08/452,516.
Co-pending U.S. Patent Application No. 08/459,185.
Co-pending U.S. Patent Application No. 08/285,233.
Co-pending U.S. Patent Application No. 08/506,262.
Inoue et al., "First and Second Order Group Timing Tank Ceramic Filters for PCM Carriers Systems," Japanese Journal of Applied Physics, vol. 20 (1981) Supplement 20-4, pp. 101-104.
Co-pending U.S. Patent Application No. 08/458,171.
Co-pending U.S. Patent application No. 08/443,783.
Co-pending U.S. Patent application No. 08/426,689.
Co-pending U.S. Patent application No. 08/423,466.
Co-pending U.S. Patent application No. 08/444,831.
Co-pending U.S. Patent Application No. 08/227,279.
Co-pending U.S. Patent application No. 08/287,530.
Great Britain Search Report dated Nov. 16, 1994.
Bettendorf Justin P.
Lee Benny
Murata Manufacturing Co. Ltd.
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