HYBRID ACOUSTIC RESONATOR-BASED FILTERS
First Claim
Patent Images
1. A hybrid acoustic resonator filter adapted for single-ended to differential signal transformation, comprising:
- a film bulk acoustic resonator (FBAR) filter section comprising a single-ended output; and
a coupled mode resonator filter (CRF) section comprising an input connected to the single-ended output, and a differential signal output.
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Abstract
A hybrid acoustic resonator filter and a communication device with a hybrid acoustic resonator filter is described.
109 Citations
17 Claims
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1. A hybrid acoustic resonator filter adapted for single-ended to differential signal transformation, comprising:
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a film bulk acoustic resonator (FBAR) filter section comprising a single-ended output; and a coupled mode resonator filter (CRF) section comprising an input connected to the single-ended output, and a differential signal output. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9)
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6. A communication device, comprising:
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a transmitter; a receiver; and a hybrid acoustic resonator filter adapted for single-ended to differential signal transformation, the hybrid acoustic resonator filter comprising; a film bulk acoustic resonator (FBAR) filter section comprising a single-ended output; and a coupled mode resonator filter (CRF) section comprising an input connected to the single-ended output, and a differential signal output. - View Dependent Claims (10, 11)
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12. A hybrid acoustic resonator filter, comprising:
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an electrically coupled film bulk acoustic wave resonator (FBAR) filter section having a single-ended signal output; and an acoustically coupled film bulk acoustic wave resonator filter section connected to the single-ended signal output and comprising a differential signal output. - View Dependent Claims (13, 14)
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15. A communication device, comprising:
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a transmitter; a receiver; and a hybrid acoustic resonator filter adapted for single-ended to differential signal transformation, the hybrid acoustic resonator filter comprising; an electrically coupled film bulk acoustic wave resonator (FBAR) filter section having a single-ended signal output; and an acoustically coupled film bulk acoustic wave resonator filter section connected to the single-ended signal output and comprising a differential signal output. - View Dependent Claims (16, 17)
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Specification