Title :
Multistrip coupler in acoustic-surface-wave filters
Author :
Deacon, J.M. ; Heighway, J. ; Jenkins, J.A.
Author_Institution :
Plessey Co., Allen Clark Research Centre, Towcester, UK
Abstract :
Multistrip couplers have been used in a number of applications: to reduce spurious modes, to make an efficient reflecting track changer, to operate a magic T etc. However, no results on the effects of varying the aperture of the sending transducer have yet been reported. Here we present measurements taken with an electrostatic probe of the transmitted signal amplitude for various transducer apertures, and discuss their implications.
Keywords :
acoustic surface wave devices; acoustic transducers; filters; waveguide couplers; acoustic surface wave devices; electrostatic probe; multistrip couplers; piezoelectric material; reflecting track changer; spurious modes; uniform interdigital transducer; waveguide couplers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19730170
