Filter and multiplexer
AssigneeAnhui Yunta Electronic Technologies Co., Ltd.
InventorsChenggong HE, Qilin SHI, Jian NIU, Chengjie ZUO, Jun HE
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Abstract
A filter includes a first port, a second port and at least one filtering unit. Each filtering unit includes a T network and a resonator. The T network includes a first capacitive element, a second capacitive element and a first element. The first capacitive element and the second capacitive element are connected in series between the first port and the second port, the first element is connected to a node between the first capacitive element and the second capacitive element, and the resonator is connected in parallel with T the network.
Claims20
A filter, comprising a first port, a second port and at least one filtering unit, wherein
- each filtering unit of the at least one filtering unit comprises a T network and a resonator;
- the T network comprises a first capacitive element, a second capacitive element and a first element;
- and
- the first capacitive element and the second capacitive element are connected in series between the first port and the second port, the first element is connected to a node between the first capacitive element and the second capacitive element, and the resonator is connected in parallel with the T network.
A multiplexer, comprising a first terminal, a plurality of second terminals and a plurality of filters;
- wherein a filter of plurality of filters comprises a first port, a second port and at least one filtering unit;
- wherein each filtering unit of the at least one filtering unit comprises a T network and a resonator;
- the T network comprises a first capacitive element, a second capacitive element and a first element;
- and
- the first capacitive element and the second capacitive element are connected in series between the first port and the second port, the first element is connected to a node between the first capacitive element and the second capacitive element, and the resonator is connected in parallel with the T network.
Dependencies are inferred from the claim text.