Filter
AssigneeMurata Manufacturing Co., Ltd.
InventorTakuya SATOU
Life of this patent
Estimating the term…
Abstract
A filter includes a first input/output terminal, a second input/output terminal, a third input/output terminal, a fourth input/output terminal, a first stage resonant circuit connected between the first input/output terminal and the second input/output terminal, at least one intermediate stage resonant circuit, and a final stage resonant circuit connected between the third input/output terminal and the fourth input/output terminal. The first stage resonant circuit and the final stage resonant circuit each include an inductor. The at least one intermediate stage resonant circuit includes an inductor and a capacitor connected in parallel to each other, and one end of the inductor and one end of the capacitor connected in parallel to the inductor are connected to a reference potential.
Claims19
A filter, comprising:
- a first input/output terminal;
- a second input/output terminal;
- a third input/output terminal;
- a fourth input/output terminal;
- a first stage resonant circuit connected between the first input/output terminal and the second input/output terminal;
- at least one intermediate stage resonant circuit;
- and
- a final stage resonant circuit connected between the third input/output terminal and the fourth input/output terminal;
- wherein
- the first stage resonant circuit and the final stage resonant circuit each include an inductor;
- and
- the at least one intermediate stage resonant circuit includes an inductor and a capacitor connected in parallel to each other, and one end of the inductor and one end of the capacitor connected in parallel to the inductor are connected to a reference potential.
Dependencies are inferred from the claim text.