Automatic computer-aided design of SAW filters using slanted finger interdigital transducers.

Automatic computer-aided design of SAW filters using slanted finger interdigital transducers. Research Abstract Details 

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Automatic computer-aided design of SAW filters using slanted finger interdigital transducers. Abstract Text:

H Yatsuda,K Yamanouchi,

This paper describes a design procedure for surface acoustic wave (SAW) filters using slanted finger interdigital transducers (SFIT) that are suitable for mid-band or wideband applications. The SFITs cannot represent the impulse response directly, in contrast to apodized IDTs. A design method for SFITs based on a building-block approach in the frequency domain is described. An automatic computer-aided design tool for SFIT filters has been achieved. The SFIT filters can be designed using a withdrawal weighting for stop-band responses, an aperture weighting for pass-band amplitude responses, and a distance weighting for pass-band phase responses. In addition, a SFIT pattern for photo mask can be automatically designed using this tool. Using this tool, an SFIT filter with a relative bandwidth of 15% was designed on an x-cut 112y-direction LiTaO(3) substrate.

Automatic computer-aided design of SAW filters using slanted finger interdigital transducers. Publishing Authors By Initials

H Yatsuda,K Yamanouchi,

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Automatic computer-aided design of SAW filters using slanted finger interdigital transducers. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: IEEE transactions on ultrasonics, ferroelectrics,

VOLUME: 47

Page Numbers: 140-7

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ISSN: 0885-3010

DAY: 1

MONTH: 02

YEAR: 2000

Automatic computer-aided design of SAW filters using slanted finger interdigital transducers. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Automatic computer-aided design of SAW filters using slanted finger interdigital transducers.

AFFILIATION: Japan Radio Co. Ltd., Saitama.

Country: United States

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MEDLINETA: IEEE Trans Ultrason Ferroelect

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