Surface Acoustic Wave Filter Composed of Interdigitated Interdigital Transducers and One-Port Resonators
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概要
- 論文の詳細を見る
This paper describes a design method for low-loss surface acoustic wave (SAW) filters with a large stop-band attenuation. The method employs a conventional interdigitated interdigital transducer (IIDT) SAW filter and conventional one-port SAW resonators, which are constructed on one chip and connected electrically. The resonators provide a large attenuation in a specified stop band. On the other hand, the resonators act as an element in a matching circuit for the IIDT SAW filter in the passband. An 880 MHz filter was designed and fabricated according to the proposed method. The side-lobe attenuation of 45 dB in the specified stop band and the insertion loss of 2.5 dB in the passband were realized.
- 社団法人応用物理学会の論文
- 1994-05-30
著者
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Takeuchi Y
Institute For Materials Research Tohoku University
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YATSUDA Hiromi
Japan Radio Co., Ltd. Laboratory
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TAKEUCHI Yoshihiko
Japan Radio Co., Ltd. Laboratory
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HORISHIMA Taira
Japan Radio Co., Ltd. Laboratory
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Horishima T
Japan Radio Co. Ltd. Laboratory
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Yatsuda H
Japan Radio Co. Ltd. Saitama Jpn
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Yatsuda Hiromi
Japan Radio Co. Ltd.
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Takeuchi Yoshihiko
Japan Radio Co. Ltd. Laboratory
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Yatsuda Hiromi
Japan Radio Co. , Ltd.
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