LOW LOSS SAW TV IF FILTER WITHOUT ADJUSTMENT FOR IMPEDANCE MATCHING.

Jun Yamada; Yuuji Fujita; Takashi Shiba; Tatsuro Toyama

doi:10.1109/ultsym.1987.198937

LOW LOSS SAW TV IF FILTER WITHOUT ADJUSTMENT FOR IMPEDANCE MATCHING.

Jun Yamada, Yuuji Fujita, Takashi Shiba, Tatsuro Toyama

RIEC - Information Communication Platforms Division

Hitachi, Ltd.

Research output: Contribution to journal › Conference article › peer-review

Abstract

The filter consists of an apodized bidirectional and an unapodized group-type unidirectional transducer. The unidirectional transducer is designed to take different finger pairs between sending and reflecting electrodes for extension of the impedance matching range. A thin-film capacitor monolithically fabricated on a 128 degree Y-X LiNbO//3 substrate is used as a phase shifter. Low insertion loss of 11. 3 dB with no adjustment for impedance matching can be achieved without increasing chip size and number of components.

Original language	English
Pages (from-to)	111-116
Number of pages	6
Journal	Ultrasonics Symposium Proceedings
DOIs	https://doi.org/10.1109/ultsym.1987.198937
Publication status	Published - 1987

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10.1109/ultsym.1987.198937

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title = "LOW LOSS SAW TV IF FILTER WITHOUT ADJUSTMENT FOR IMPEDANCE MATCHING.",

abstract = "The filter consists of an apodized bidirectional and an unapodized group-type unidirectional transducer. The unidirectional transducer is designed to take different finger pairs between sending and reflecting electrodes for extension of the impedance matching range. A thin-film capacitor monolithically fabricated on a 128 degree Y-X LiNbO//3 substrate is used as a phase shifter. Low insertion loss of 11. 3 dB with no adjustment for impedance matching can be achieved without increasing chip size and number of components.",

author = "Jun Yamada and Yuuji Fujita and Takashi Shiba and Tatsuro Toyama",

year = "1987",

doi = "10.1109/ultsym.1987.198937",

language = "English",

pages = "111--116",

journal = "Ultrasonics Symposium Proceedings",

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AU - Yamada, Jun

AU - Fujita, Yuuji

AU - Shiba, Takashi

AU - Toyama, Tatsuro

PY - 1987

Y1 - 1987

N2 - The filter consists of an apodized bidirectional and an unapodized group-type unidirectional transducer. The unidirectional transducer is designed to take different finger pairs between sending and reflecting electrodes for extension of the impedance matching range. A thin-film capacitor monolithically fabricated on a 128 degree Y-X LiNbO//3 substrate is used as a phase shifter. Low insertion loss of 11. 3 dB with no adjustment for impedance matching can be achieved without increasing chip size and number of components.

AB - The filter consists of an apodized bidirectional and an unapodized group-type unidirectional transducer. The unidirectional transducer is designed to take different finger pairs between sending and reflecting electrodes for extension of the impedance matching range. A thin-film capacitor monolithically fabricated on a 128 degree Y-X LiNbO//3 substrate is used as a phase shifter. Low insertion loss of 11. 3 dB with no adjustment for impedance matching can be achieved without increasing chip size and number of components.

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ER -

LOW LOSS SAW TV IF FILTER WITHOUT ADJUSTMENT FOR IMPEDANCE MATCHING.

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