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US 2024/0267031 A1Published application
Radio frequency multiplexer
AssigneeRF360 Singapore Pte. Ltd.
InventorSebastian BERTL
Life of this patent
Estimating the term…
Abstract
A radio frequency multiplexer (210, 220, 230) comprises send and receive circuits each including a RF filter circuit (211, 212, 221, 227, 231, . . . , 234). The send and receive circuits are coupled to an antenna port (225, 245) and corresponding send and receive ports (221, 222). A portion of the send circuit and a portion of the receive circuit are disposed on a single die (213, 226, 250). The layer stacks of the resonators of the send and receive circuits disposed on the single die can be optimized for the required functionality.
Claims20
A radio frequency multiplexer, comprising:
- a send circuit and a receive circuit each forming a portion of a filter circuit;
- a first port coupled to the send circuit and the receive circuit;
- a second port coupled to the send circuit;
- and
- a third port coupled to the receive circuit, wherein:
- the send circuit comprises a first resonator and the receive circuit comprises a second resonator, the first resonator and the second resonator being disposed on a first die;
- the send circuit comprises additional resonators coupled in series and disposed on a second die different from the first die, the first resonator and the additional resonators being included in a series path of the send circuit;
- the send circuit comprises a plurality of parallel paths connected to the series path, one or more other resonators being included in the plurality of parallel paths of the send circuit and disposed on the first die;
- and
- the plurality of parallel paths are coupled between a plurality of different nodes in the series paths and a ground potential node, respectively, part of the plurality of different nodes being located between adjacent resonators of the additional resonators.
7 more elements
A radio frequency multiplexer, comprising:
- a send circuit and a receive circuit, each comprising a filter circuit;
- a first port coupled to the send circuit and the receive circuit;
- a second port coupled to the send circuit;
- a third port coupled to the receive circuit;
- and
- a portion of the send circuit and a portion of the receive circuit disposed on a first die, wherein:
- the send circuit and the receive circuit each comprise a plurality of resonators, at least one resonator of the send circuit and at least one resonator of the receive circuit being disposed on the first die;
- and
- the send circuit comprises additional resonators disposed on a second die separated from the first die, the additional resonators of the send circuit disposed on the second die being configured to exhibit a temperature coefficient that is lower than a temperature coefficient of the at least one resonator of the send circuit disposed on the first die.
6 more elements
A wireless device, comprising:
- an antenna;
- a send circuit and a receive circuit each forming a portion of a filter circuit;
- a first port coupled to the antenna, the send circuit, and the receive circuit;
- a second port coupled to the send circuit;
- and
- a third port coupled to the receive circuit, wherein:
- the send circuit comprises a first resonator and the receive circuit comprises a second resonator, the first resonator and the second resonator being disposed on a first die;
- the send circuit comprises additional resonators coupled in series and disposed on a second die different from the first die, the first resonator and the additional resonators being included in a series path of the send circuit;
- the send circuit comprises a plurality of parallel paths connected to the series path, one or more other resonators being included in the plurality of parallel paths of the send circuit and disposed on the first die;
- and
- the plurality of parallel paths are coupled between a plurality of different nodes in the series paths and a ground potential node, respectively, part of the plurality of different nodes being located between adjacent resonators of the additional resonators.
8 more elements
Dependencies are inferred from the claim text.