IMPEDANCE-TYPE SURFACE-ACOUSTIC-WAVE REJECTION FILTER Russian patent published in 2005 - IPC

Abstract RU 2252481 C2

FIELD: radio engineering.

SUBSTANCE: proposed filter has case accommodating substrate of piezoelectric material that carries filter layout, and interdigital fan transducers. Filter depends for its operation on conductance of interdigital transducer as function of its period.

EFFECT: reduced variations in amplitude-frequency response beyond rejection band.

1 cl, 4 dwg

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RU 2 252 481 C2

Authors

Averkin S.V.

Semenov G.A.

Bichurin M.I.

Dates

2005-05-20Published

2003-06-02Filed