Accession Number : ADD000009

Title :   Surface Wave Transducers with Cancellation of Secondary Response.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Whitehouse,Harper John ; Speiser,Jeffrey M

Report Date : 04 Sep 1973

Pagination or Media Count : 7

Abstract : The patent relates to distributed-transducer acoustic wave devices for propagating surface waves. It comprises a crystal substrate upon which is mounted at least one transducer set, including a pair of input transducers and at least one output transducer, with each transducer being aligned in the direction of wave propagation and each transducer including a pair of sets of interdigitated electrode elements. The interdigitations of the electrodes may be coded or may be uniformly spaced and alternating in sign. In some specific embodiments, the interdigitations of the electrode elements of the input transducers are configured to correspond to the members of a Golay complementary pair.

Descriptors :   *Transducers, *Patents, Surface waves, Acoustic waves, Acoustic equipment, Wave propagation, Crystals, Substrates

Subject Categories : Line, Surface and Bulk Acoustic Wave Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE