A multi-bandwidth saw filter

Details A multi-bandwidth saw filter A multi-bandwidth saw filter

H - Electricity

03

H

H03H 9/64 (2006.01) H04B 1/18 (2006.01)

Patent

CA 2130088

A multi-bandwidth SAW filter (405) for an input signal (90) is provided which includes a SAW transducer (402) having a selectable length to corresponding to the desired bandwidth of the filter. The SAW filter is responsive to a control signal (430) which corresponds to a selectable bandwidth of the filter to present the input signal to an appropriate length SAW transducer.

Un filtre SAW à plusieurs largeurs de bande (405) conditionnant un signal d'entrée (90) est présenté et comprend un transducteur SAW ayant une longueur d'onde sélectionnable correspondant à la largeur de bande voulue du filtre. Le filtre SAW réagit à un signal de commande (430) qui correspond à une largeur de bande sélectionnable du filtre afin de fournir un signal d'entrée au transducteur SAW ayant cette longueur d'onde.

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