DocumentCode :
1301841
Title :
Wideband diffraction compensation methods and the angular spectrum of waves (ASoW) model for TV SAW filters
Author :
Bi, Frank Z. ; Hansen, Kai
Author_Institution :
Zenith Electron. Corp., Glenview, IL, USA
Volume :
44
Issue :
4
fYear :
1997
fDate :
7/1/1997 12:00:00 AM
Firstpage :
925
Lastpage :
934
Abstract :
Wideband diffraction compensation methods are reviewed. Eight algorithms are formulated, implemented, and tested for evaluating their performance. The angular spectrum of waves (ASoW) model for diffraction analysis is derived and validated by comparing measurements and analysis results. And, the most robust compensation algorithm is applied with the ASoW analysis program to design SAW filters. Both internal reflections and end effects are considered in the analysis and compensation programs. This paper also demonstrates that the ASoW model is superior to parametric diffraction models such as the parabolic approximation model as far as formulation, implementation, calculation speed, and generality are concerned.
Keywords :
acoustic wave diffraction; compensation; surface acoustic wave filters; television equipment; TV SAW filter; angular spectrum of waves model; end effect; internal reflection; wideband diffraction compensation algorithm; Algorithm design and analysis; Diffraction; Error correction; Frequency response; Reflection; SAW filters; Surface acoustic waves; TV; Testing; Wideband;
fLanguage :
English
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-3010
Type :
jour
DOI :
10.1109/58.655208
Filename :
655208
Link To Document :
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