Title :
Effect of electrode resistance for acoustic coupler using quadrature electrode
Author :
Shiba, Takashi ; Fujita, Yuji ; Kondo, Seima ; Hamasaki, J. ; Ide, Mayumi ; Ogawa, Seiichi ; Oda, Koji
Author_Institution :
Hitachi Media Electron. Ltd, Yokohama, Japan
Abstract :
An equivalent circuit analysis including meander electrode resistance is applied to an acoustic coupler which has been proposed using cascaded quadrature wavelength group-type unidirectional structure. Linear circuit composition procedure for multi ports elements is applied in order to explain the meander resistive effect. Cascade-connected ports are prepared for the meander electrode. The experimental results was found to be in good agreement with the improved circuit calculation.
Keywords :
electrodes; equivalent circuits; surface acoustic wave couplers; acoustic coupler; cascade-connected ports; cascaded quadrature wavelength group-type unidirectional structure; circuit calculation; electrode resistance; equivalent circuit analysis; linear circuit composition procedure; meander electrode; meander electrode resistance; meander resistive effect; multi ports elements; quadrature electrode; Acoustic waves; Circuit simulation; Coupling circuits; Digital filters; Electrodes; Equations; Equivalent circuits; Surface acoustic wave devices; Surface acoustic waves; Wideband;
Conference_Titel :
Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE
Print_ISBN :
0-7803-7582-3
DOI :
10.1109/ULTSYM.2002.1193395
