共 24 条
[21]
DESIGN OF LOW-LOSS WIDEBAND ULTRASONIC TRANSDUCERS FOR NON-INVASIVE MEDICAL APPLICATION
[J].
IEEE TRANSACTIONS ON SONICS AND ULTRASONICS,
1979, 26 (02)
:75-81
[22]
ACOUSTIC SURFACE WAVE FILTERS
[J].
PROCEEDINGS OF THE INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS,
1971, 59 (03)
:393-+
[23]
YAMASHITA Y, 1981, 3RD P C FERR MAT THE
[24]
YAMASHITA Y, 1981, JAPANESE J APPL PH S, V20, P184