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US 2020/0028488 A1Published application
Filter with antiresonance frequency correction
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsHyun Jun KIM, Yoon Sok PARK, Sung Tae KIM
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Abstract
A filter comprises a series unit comprising a plurality of series resonators, a shunt unit comprising a plurality of shunt resonators, connected between the plurality of series resonators and a ground, and a correction unit comprising an inductor unit connected between both ends of at least one of a set of series resonators of the plurality of series resonators and a set of shunt resonators of the plurality of shunt resonators, and an impedance unit connected between the inductor unit and a ground.
Claims17
A filter comprising:
- a series unit comprising a plurality of series resonators;
- a shunt unit comprising a plurality of shunt resonators, disposed between the plurality of series resonators and a ground;
- and
- a correction unit comprising
- an inductor unit disposed between both ends of at least one of a set of series resonators of the plurality of series resonators and a set of shunt resonators of the plurality of shunt resonators, and
- an impedance unit disposed between the inductor unit and a ground.
3 more elements
A filter comprising:
- a series resonator disposed between a signal input terminal and a signal output terminal;
- a shunt resonator disposed between one end of the series resonator and a ground;
- and
- a correction unit comprising
- a series correction unit comprising at least two inductors connected in series and mutually coupled between both ends of the series resonator, and a capacitor disposed between a connection node of the at least two inductors and a ground, and
- a shunt correction unit comprising at least two inductors connected in series and mutually coupled between both ends of the shunt resonator, and a capacitor disposed between a connection node of the at least two inductors and the ground.
3 more elements
A filter comprising:
- a series resonator disposed between a signal input terminal and a signal output terminal;
- a shunt resonator disposed between one end of the series resonator and a ground;
- and
- a correction unit comprising
- a series correction unit comprising a capacitor connected to a ground and at least two series-connected inductors mutually coupled between one end of the series resonator and the capacitor, and
- a shunt correction unit comprising at least two series-connected inductors mutually coupled between both ends of the shunt resonator, and a capacitor disposed between a connection node of the at least two inductors and the ground.
3 more elements
Dependencies are inferred from the claim text.