Accession Number : AD0711982

Title :   SURFACE WEDGE ELECTRO-ACOUSTIC TRANSDUCERS.

Descriptive Note : Final rept. 1 Jun 69-30 Jun 70,

Corporate Author : MOTOROLA INC SCOTTSDALE ARIZ GOVERNMENT ELECTRONICS DIV

Personal Author(s) : Hickernell,Fred S.

Report Date : 30 JUN 1970

Pagination or Media Count : 60

Abstract : Theoretical and experimental work was directed toward the development of wedge transducer techniques suitable for the generation of broadband surface acoustic Love waves in the frequency range from 100 MHz to 500 MHz. Theoretical studies characterized wedge transduction and Love wave propagation characteristics. Bonding agents were identified which provided strong coupling of bulk shear waves to acoustic surface waves. Fused quartz and zinc oxide wedge transducers were used to excite surface waves in the VHF region. The propagation properties of Rayleigh waves on free surfaces and Rayleigh and Love waves on layered surfaces were investigated. Love and Rayleigh waves were guided on substrates of silicon using etched SiO2 waveguide structures. (Author)

Descriptors :   (*ELECTROACOUSTIC TRANSDUCERS, WAVE PROPAGATION), (*WAVE PROPAGATION, SILICON), SUBSTRATES, SILICON DIOXIDE, CADMIUM SULFIDES, QUARTZ, ZINC COMPOUNDS, OXIDES, RAYLEIGH WAVES, VERY HIGH FREQUENCY, PROPAGATION

Subject Categories : Line, Surface and Bulk Acoustic Wave Devices
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE