TRANSVERSAL FILTER HAVING IMPROVED REJECTION CHARACTERISTIC Russian patent published in 2006 - IPC H03H9/145 H03H9/54

Abstract RU 2280319 C2

FIELD: radio engineering; intermediate-frequency filters for domestic electronic appliances.

SUBSTANCE: proposed surface-acoustic-wave transversal filter has piezoelectric substrate carrying input and output converters. Input converter has primary weighing device for producing transfer function and output one is provided with secondary weighing device for improving rejection characteristic which is much smaller than first weighing device.

EFFECT: improved rejection characteristics of transversal filter.

5 cl, 4 dwg

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RU 2 280 319 C2

Authors

Shemis Mikhel'

Dates

2006-07-20—Published

2002-04-10—Filed