Title :
Frequency-shift keyer using unidirectionality of a 3-phase interdigital transducer
Author :
Toda, Kohji ; Shinoda, Yoshiaki ; Takamoto, Noriyuki
Author_Institution :
National Defense Academy, Department of Electrical Engineering, Yokosuka, Japan
Abstract :
A frequency-shift keyer using the unidirectionality of a 3-phase interdigital transducer is demonstrated. The propagation direction of the surface acoustic wave excited by the 3-phase interdigital transducer is controlled by the polarity of a d.c. pulse applied to a kind of mixing circuit connected with the transducer.
Keywords :
acoustic surface wave devices; frequency shift keying; SAW devices; frequency shift keyer; interdigital transducer; unidirectionality;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19760519
