Acoustic Filter and Method of Acoustic Filter Manufacture
AssigneeFuturewei Technologies, Inc.
InventorsDong Yan, Tuoxin Wang
Life of this patent
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Abstract
An acoustic filter and method of acoustic filter manufacture provides a plurality of series acoustic resonators coupled in series on a first resonator substrate, a plurality of shunt resonators on a second resonator substrate, and a support substrate. The first and second resonator substrates are mounted on the support substrate. The filter further provides a plurality of electrical connections, wherein each respective electrical connection electrically couples a respective one of the plurality of shunt resonators to a respective one of the plurality of series acoustic resonators.
Claims26
An acoustic filter comprising:
- a plurality of series acoustic resonators coupled in series on a first resonator substrate;
- a plurality of shunt resonators on a second resonator substrate;
- a support substrate, wherein the first and second resonator substrates are mounted on the support substrate;
- and
- a plurality of electrical connections, wherein each respective electrical connection electrically couples a respective one of the plurality of shunt resonators to a respective one of the plurality of series acoustic resonators.
A method of fabricating an acoustic filter, the method comprising:
- forming a plurality of series acoustic resonators coupled in series on a first resonator substrate;
- forming a plurality of shunt resonators on a second resonator substrate;
- mounting the first and second resonator substrates on a support substrate;
- and
- electrically coupling each of the plurality of shunt resonators to a respective one of the plurality of series acoustic resonators.
A wireless communication device comprising:
- an antenna;
- an antenna duplexer coupled to an antenna;
- a mixer;
- and
- an input amplifier and an acoustic filter coupled between the antenna duplexer and the mixer, wherein the acoustic filter comprises a first resonator substrate comprising a plurality of series acoustic resonators, and a second resonator substrate comprising a plurality of shunt resonators, wherein each of the plurality of shunt resonators is electrically coupled to a respective one of the plurality of series acoustic resonators.
Dependencies are inferred from the claim text.