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General matching network for acoustic wave filters and acoustic resonators

  • US 20080042778A1
  • Filed: 08/17/2006
  • Published: 02/21/2008
  • Est. Priority Date: 08/17/2006
  • Status: Active Grant
First Claim
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1. A radio frequency (RF) signal processing device, the device comprising:

  • a common terminal;

    a plurality of filters, wherein each of the filters is one of a surface acoustic wave (SAW) filter, a bulk acoustic wave (BAW) filter, and a thin film bulk acoustic resonator (FBAR) filter;

    a plurality of matching capacitors corresponding to the plurality of filters, each capacitor having a first electrode directly connected to the corresponding filter and having a second electrode, wherein the second electrodes of all of the matching capacitors are directly connected together to the common terminal; and

    one of an inductor and a transmission line connected between the common terminal and ground.

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