Acoustic surface wave devices

Details Acoustic surface wave devices Acoustic surface wave devices

H - Electricity

03

H

349/59.1

H03H 9/125 (2006.01) H03H 9/17 (2006.01) H03H 9/25 (2006.01) H03H 9/64 (2006.01)

Patent

CA 1089084

ABSTRACT: An electrode structure within the cavity of an acoustic surface wave resonator, e.g. an interdigital transducer or a multistrip coupler, has two sections separated by an odd integral multiple of a quarter wavelength of the standing wave in the cavity and located with respect to the centre of the cavity so that all the electrodes are midway between a node and an adjacent antinode of the standing wave. Distortion of the resonator response due to reflection by the electrodes of the transducer or coupler is suppressed by this arrangement.

261441

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