Title :
Attenuation and phase distortion in lossy acoustic-surface-wave multistrip couplers
Author :
Schwelb, O. ; Adler, E.L.
Author_Institution :
McGill University, Electrical Engineering Department, Montreal, Canada
Abstract :
An easy-to-use closed-form expression is reported which given the attenuation and the phase velocity of the acoustic-surface-wave eigenmodes of the uniform multistrip coupler consisting of resistive strips. A computer program has been written to implement the numerical calculation of output power, group delay and the sensitivity of output amplitude with respect to changes in the metallisation ratio.
Keywords :
acoustic surface wave devices; acoustic surface waves; attenuation; computer program; eigenmodes; group delay; lossy acoustic surface wave multistrip couplers; metallisation ratio; output power; phase distortion; phase velocity; sensitivity of output amplitude;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19750262
