DocumentCode
3377933
Title
A new type SPUDT SAW for use in high frequency around 2 GHz
Author
Jian, Chun-Yun ; Beaudin, Steve
Author_Institution
Wireless Technol. Labs, Nortel Networks, Ottawa, Ont., Canada
Volume
1
fYear
2002
fDate
8-11 Oct. 2002
Firstpage
279
Abstract
This paper introduces a new type of SPUDT structure, which enables the design of SAW filters or delay-lines up into the 2 GHz range. The structure consists of two groups of spatially harmonic transducers e.g. Se=5 (+ + - + -) or Se=8 (+ + - + - - + -) and one group of reflectors positioned between the two groups of harmonic transducers. In the paper, the general operating principle of the new SPUDT is discussed. To confirm this new technique, a slanted type SAW filter using the new SPUDT structure with central frequency of 2.14 GHz was designed and fabricated. The directionality of this new SPUDT structure has been demonstrated by measurement.
Keywords
interdigital transducers; surface acoustic wave filters; surface acoustic wave transducers; 2 GHz; 2.14 GHz; SAW filters; SPUDT SAW; delay-lines; directionality; high frequency; reflectors; spatially harmonic transducers; Delay; Electrodes; Frequency; Insertion loss; Intelligent networks; Power harmonic filters; Reflection; SAW filters; Surface acoustic waves; Transducers;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE
ISSN
1051-0117
Print_ISBN
0-7803-7582-3
Type
conf
DOI
10.1109/ULTSYM.2002.1193402
Filename
1193402
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