BANDPASS FILTER NETWORK AND METHOD FOR BANDPASS FILTERING SIGNALS USING MULTIPLE ACOUSTIC RESONATORS

摘要

PROBLEM TO BE SOLVED: To provide a narrow-band bandpass filter network and method for bandpass filtering signals with narrow bandwidth of a desired frequency band (ISM 2.4 band or the like). SOLUTION: The bandpass filter network and method for bandpass filtering signals uses multiple acoustic resonators. The acoustic resonators may be Film Bulk Acoustic Resonators (FBARs) or Surface Acoustic Wave (SAW) resonators. The acoustic resonators are separated by one or more electrical components (for example, multiple transistors of a single amplifier) to provide isolation between the multiple acoustic resonators. COPYRIGHT: (C)2007,JPO&INPIT