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US 11,309,847 B2Granted
Amplifier circuit
AssigneeMurata Manufacturing Co., Ltd.
InventorKen Wakaki
Life of this patent
Estimating the term…
Abstract
An amplifier circuit has an amplification path including an amplifier and a bypass path configured to bypass at least the amplifier. The bypass path includes a switch coupled in series on the bypass path and another switch coupled in series between the bypass path and ground. The amplification path further includes an inductor coupled on an output side with respect to the amplifier and a switch coupled between the inductor and ground on a path between the inductor and the amplifier.
Claims13
An amplifier circuit comprising:
- an amplification path that is connected between an input node and an output node, and that comprises an amplifier;
- and
- a bypass path that bypasses at least the amplifier, wherein:
- the bypass path comprises:
- a first series switch connected in series between the input node and the output node, and
- a first shunt switch connected to ground in parallel between the input node and the output node, and
- the amplification path further comprises:
- an inductor connected to an output side with respect to the amplifier, and
- a second shunt switch connected between ground and a first end of the inductor which is opposite to a second end of the inductor at an output node side, wherein the amplifier circuit is configured to operate in:
- a bypass mode in which the first series switch is closed, the first shunt switch is open, and the second shunt switch is closed, and
- an amplification mode in which the first series switch is open, the first shunt switch is closed, and the second shunt switch is open.
8 more elements
An amplifier circuit comprising:
- an amplification path that is connected between an input node and an output node, and that comprises an amplifier;
- and
- a bypass path that bypasses at least the amplifier, wherein:
- the bypass path comprises:
- a first series switch connected in series between the input node and the output node, and
- a first shunt switch connected to ground in parallel between the input node and the output node, and
- the amplification path further comprises:
- an inductor and a second shunt switch connected in series with each other, and in parallel between ground and a node between the amplifier and the output node, wherein the amplifier circuit is configured to operate in:
- a bypass mode in which the first series switch is closed, the first shunt switch is open, and the second shunt switch is closed, and
- an amplification mode in which the first series switch is open, the first shunt switch is closed, and the second shunt switch is open.
7 more elements
An amplifier circuit comprising:
- an amplification path that is connected between an input node and an output node, and that comprises an amplifier;
- and
- a bypass path that bypasses at least the amplifier, wherein:
- the bypass path comprises:
- a first series switch connected in series between the input node and the output node, and
- a first shunt switch connected to ground in parallel between the input node and the output node, and
- the amplification path further comprises:
- an inductor connected in series between the amplifier and the output node, and
- a second shunt switch connected between ground and a node between the inductor and the amplifier, wherein the amplifier circuit is configured to operate in:
- a bypass mode in which the first series switch is closed, the first shunt switch is open, and the second shunt switch is closed, and
- an amplification mode in which the first series switch is open, the first shunt switch is closed, and the second shunt switch is open.
8 more elements
Dependencies are inferred from the claim text.