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US 2026/0045915 A1Published application
Amplifier circuit
AssigneeMurata Manufacturing Co., Ltd.
InventorIsao TAKENAKA
Life of this patent
Estimating the term…
Abstract
An amplifier circuit includes first and second amplifiers, first and second input-side coils, first and second output-side coils, a resistance element, a first switch including first to fourth terminals, and a second switch including fifth to seventh terminals. The first input-side coil is connected between the first amplifier and the first terminal, the second input-side coil is connected between the second amplifier and the third terminal, the first output-side coil is connected between a signal output terminal and the second terminal, the second output-side coil is connected between the fifth terminal and the fourth terminal, and the resistance element is connected between the sixth terminal and the ground.
Claims20
An amplifier circuit comprising:
- a first amplifier;
- a second amplifier;
- a combiner circuit configured to combine an output of the first amplifier and an output of the second amplifier;
- and
- a signal output terminal connected to the combiner circuit, wherein
- the combiner circuit includes
- a first transformer including a first input-side coil and a first output-side coil,
- a second transformer including a second input-side coil and a second output-side coil,
- a first resistance element,
- a first switch that includes a first terminal, a second terminal, a third terminal, and a fourth terminal and is configured to switch between a connection configuration in which the first terminal is connected to the third terminal and the second terminal is connected to the fourth terminal and a connection configuration in which the first terminal is connected to the fourth terminal and the second terminal is connected to the third terminal, and
- a second switch that includes a fifth terminal, a sixth terminal, and a seventh terminal and is configured to switch between a connection configuration in which the fifth terminal is connected to the sixth terminal and a connection configuration in which the fifth terminal is connected to the seventh terminal;
- a first end of the first input-side coil is connected to an output end of the first amplifier;
- a second end of the first input-side coil is connected to the first terminal;
- a first end of the second input-side coil is connected to an output end of the second amplifier;
- a second end of the second input-side coil is connected to the third terminal;
- a first end of the first output-side coil is connected to the signal output terminal;
- a second end of the first output-side coil is connected to the second terminal;
- a first end of the second output-side coil is connected to the fifth terminal;
- a second end of the second output-side coil is connected to the fourth terminal;
- a first end of the first resistance element is connected to the sixth terminal;
- and
- a second end of the first resistance element and the seventh terminal are connected to a ground.
19 more elements
An amplifier circuit comprising:
- a first amplifier having an input end and an output end;
- a second amplifier having an input end and an output end;
- a combiner circuit configured to combine an output of the first amplifier and an output of the second amplifier;
- and
- a signal output terminal connected to the combiner circuit, wherein
- the combiner circuit includes
- a first phase shifter that delays a phase of an input radio frequency signal by 45°,
- a second phase shifter that advances a phase of an input radio frequency signal by 45°,
- a third phase shifter that delays a phase of an input radio frequency signal by 45°,
- a fourth phase shifter that delays a phase of an input radio frequency signal by 45°,
- a fifth phase shifter that delays a phase of an input radio frequency signal by 45°,
- a sixth phase shifter that advances a phase of an input radio frequency signal by 45°,
- a first resistance element, and
- a first switch that includes a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, and a sixth terminal and is configured to switch between a connection configuration in which the first terminal is connected to the second terminal and a connection configuration in which the first terminal is connected to the third terminal and to switch among a connection configuration in which the fourth terminal is connected to the second terminal, a connection configuration in which the fourth terminal is connected to the fifth terminal, and a connection configuration in which the fourth terminal is connected to the sixth terminal;
- an input end of the first phase shifter is connected to the output end of the first amplifier;
- an output end of the first phase shifter is connected to the first terminal;
- an input end of the second phase shifter is connected to the output end of the second amplifier;
- an output end of the second phase shifter is connected to the fourth terminal;
- an input end of the third phase shifter is connected to the second terminal;
- an output end of the third phase shifter is connected to the signal output terminal;
- an input end of the fourth phase shifter is connected to the third terminal;
- an output end of the fourth phase shifter is connected to the signal output terminal;
- an input end of the fifth phase shifter is connected to the fifth terminal;
- an output end of the fifth phase shifter is connected to the signal output terminal;
- an input end of the sixth phase shifter is connected to the sixth terminal;
- an output end of the sixth phase shifter is connected to the signal output terminal;
- a first end of the first resistance element is connected to the third terminal;
- and
- a second end of the first resistance element is connected to the fifth terminal.
26 more elements
An amplifier circuit comprising:
- a first amplifier;
- a second amplifier;
- a combiner circuit configured to combine an output of the first amplifier and an output of the second amplifier;
- and
- a signal output terminal connected to the combiner circuit, wherein
- the combiner circuit includes
- a first transformer including a first input-side coil and a first output-side coil,
- a second transformer including a second input-side coil and a second output-side coil, and
- a first switch that includes a first terminal, a second terminal, a third terminal, and a fourth terminal and is configured to switch between a connection configuration in which the first terminal is connected to the third terminal and the second terminal is connected to the fourth terminal and a connection configuration in which the first terminal is connected to the fourth terminal and the second terminal is connected to the third terminal, wherein a first end of the first input-side coil is connected to an output end of the first amplifier;
- a second end of the first input-side coil is connected to the first terminal;
- a first end of the second input-side coil is connected to an output end of the second amplifier;
- a second end of the second input-side coil is connected to the third terminal;
- a first end of the first output-side coil is connected to the signal output terminal;
- a second end of the first output-side coil is connected to the second terminal;
- a first end of the second output-side coil is connected to a ground;
- and
- a second end of the second output-side coil is connected to the fourth terminal.
14 more elements
Dependencies are inferred from the claim text.