DocumentCode
963165
Title
Novel acoustic-surface-wave directional coupler with diverse applications
Author
Marshall, F.G. ; Paige, E.G.S.
Author_Institution
Royal Radar Establishment, Great Malvern, UK
Volume
7
Issue
16
fYear
1971
Firstpage
460
Lastpage
462
Abstract
An acoustic-surface-wave directional coupler is proposed that may be used on materials having a large electromechanical coupling constant to couple two acoustic beams which are many wavelengths wide. The normal modes of the coupler are identified and used with an equivalent-circuit representation of the device to predict the length of the structure needed for complete energy transfer. The theory indicates that the device can have an intrinsic bandwidth near to 100%.
Keywords
acoustic microwave devices; directional couplers; equivalent circuits; acoustic microwave devices; directional couplers; equivalent circuits; interdigital transducers; lithium niobate; modes; multistrip coupler; piezoelectric substrate;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19710312
Filename
4244917
Link To Document