Multiplexer with hybrid acoustic passive filter
AssigneeSkyworks Solutions, Inc.
InventorsHai H. Ta, Bo Pan, Weimin Sun
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Abstract
Aspects of this disclosure relate to a multiplexer with a hybrid acoustic passive filter. The multiplexer includes a plurality of filters configured to filter respective radio frequency signals, a shared filter coupled between each of the plurality of filters and a common node, and a radio frequency filter coupled to the common node. At least a first filter of the plurality of filters includes acoustic resonators and a non-acoustic passive component. Related multiplexers, wireless communication devices, and methods are disclosed.
Claims21
(canceled)
A parallel hybrid acoustic passive filter comprising:
- a first sub-filter including a first acoustic resonator and a first non-acoustic passive component, the first non-acoustic passive component including a first capacitor and first inductors;
- and
- a second sub-filter coupled in parallel with the first sub-filter, the second sub-filter including a second acoustic resonator and a second non-acoustic passive component, the second non-acoustic passive component including a second capacitor and second inductors, and the first sub-filter and the second sub-filter are together arranged to filter a radio frequency signal.
A parallel hybrid acoustic passive filter comprising:
- a first sub-filter including two series acoustic resonators in series with each other, a shunt acoustic resonator coupled to a node between the two series acoustic resonators, and a non-acoustic passive shunt circuit coupled to the node and in parallel with the shunt acoustic resonator, the non-acoustic passive shunt circuit including a shunt inductor;
- and
- a second sub-filter coupled in parallel with the first sub-filter, the second sub-filter including a second acoustic resonator and a second non-acoustic passive component, and the first sub-filter and the second sub-filter are together arranged to filter a radio frequency signal.
A multiplexer with a parallel hybrid acoustic passive filter, the multiplexer comprising:
- a first filter coupled to a common node and configured to filter a radio frequency signal, the first filter including a first sub-filter in parallel with a second sub-filter, the first sub-filter including a first acoustic resonator and a first non-acoustic passive component, the first non-acoustic passive component including an inductor and a capacitor, and the second sub-filter including a second acoustic resonator and a second non-acoustic passive component;
- and
- a second filter coupled to the common node.
Dependencies are inferred from the claim text.