Combined series sections weighting with withdrawal weighting...

Details Combined series sections weighting with withdrawal weighting... Combined series sections weighting with withdrawal weighting...

H - Electricity

03

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333/58

H03H 9/64 (2006.01) H03H 9/145 (2006.01) H03H 15/00 (2006.01)

Patent

CA 1165410

COMBINING SERIES SECTIONS WEIGHTING WITH WITHDRAWAL WEIGHTING IN SAW TRANSDUCERS Abstract A transducer for a SAW device having withdrawal weighting combined with series sections weighting to achieve a desired frequency response. Withdrawal weighting is employed where the impulse response can be adequately approximated by a withdrawal pattern with series sections electrodes being used to provide the additional weighting required. Additionally, electrodes using a different number of series sections are separated by a gap a few wavelengths wide in order to avoid sharp discontinu- ities.

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