Accession Number : ADD011948

Title :   Flat Passband Etched Groove SAW (Surface Acoustic Wave) Filter.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Fredricksen,H P

Report Date : 03 Sep 1985

Pagination or Media Count : 33

Abstract : An acoustic surface wave device is configured as a bandpass filter. The device employs two interdigital transducer pairs for input and output. Each transducer pair has a slant finger geometry. The fingers are electrodeposited into grooves etched into the substrate. The grooves enhance the electromechanical coupling of high frequency components and thus provide a flatter amplitude response curve. (Author).

Descriptors :   *PATENT APPLICATIONS, *ACOUSTIC EQUIPMENT, *BANDPASS FILTERS, *SURFACE ACOUSTIC WAVES, ACOUSTIC WAVES, SURFACE WAVES, HIGH FREQUENCY, SUBSTRATES, TRANSDUCERS, AMPLITUDE, GRAPHS, RESPONSE, COUPLING(INTERACTION), ELECTROMECHANICAL DEVICES, GEOMETRY, SLANT RANGE

Subject Categories : Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE