Wave transmission lines and networks – Coupling networks – Electromechanical filter
Patent
1983-12-23
1985-05-07
Nussbaum, Marvin L.
Wave transmission lines and networks
Coupling networks
Electromechanical filter
310313R, 333151, 333153, 333196, H03H 942, H03H 964, H03H 9145
Patent
active
045160953
ABSTRACT:
An acoustic surface wave device having an acoustic energy absorber of acoustic surface wave absorbing material positioned between the input transducer and the output transducer. The acoustic energy absorber increases the insertion loss of the device and consequently suppresses triple transit signals in the device.
REFERENCES:
patent: 3727155 (1973-04-01), De Vries
patent: 3818379 (1974-06-01), Wauk
patent: 4090153 (1978-05-01), Toda et al.
patent: 4162415 (1979-07-01), Andreev et al.
patent: 4188596 (1980-02-01), Miura
patent: 4470026 (1984-09-01), Buckinx et al.
GTE Laboratories Incorporated
Keay David M.
Nussbaum Marvin L.
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