Power amplifier module
AssigneeMurata Manufacturing Co., Ltd.
InventorShingo Yanagihara
Life of this patent
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Abstract
A power amplifier module includes a first amplifier that amplifies an input signal to generate a first amplified signal and outputs the first amplified signal, a second amplifier that amplifies the first amplified signal to generate a second amplified signal and outputs the second amplified signal, and a matching network disposed between an output terminal of the first amplifier and an input terminal of the second amplifier. The first amplifier is provided on a first chip, and the second amplifier is provided on a second chip. The matching network has an impedance transformation characteristic adjustable in accordance with a control signal.
Claims20
A power amplifier module comprising:
- a first amplifier that amplifies an input signal and outputs a first amplified signal;
- a second amplifier that amplifies the first amplified signal and outputs a second amplified signal;
- a matching network disposed between an output terminal of the first amplifier and an input terminal of the second amplifier, the matching network having an adjustable impedance transformation characteristic;
- and
- a switch circuit that is supplied with the second amplified signal and outputs the second amplified signal from one of a plurality of output terminals, wherein:
- the first amplifier and the switch circuit are provided on a first chip,
- the second amplifier is provided on a second chip,
- an input terminal for the input signal is arranged on a first side of the first chip,
- the second chip is arranged adjacent to a second side of the first chip, the second side being perpendicular to the first side,
- the switch circuit is arranged closer to a third side of the first chip than the first side of the first chip, the third side opposing the first side,
- the first amplified signal from the first amplifier is input to the second amplifier through the second side,
- the second amplified signal from the second amplifier is input to the switch circuit through the second side, and
- the second amplified signal from the switch circuit is output through the third side.
A power amplifier module comprising:
- a first amplifier that amplifies an input signal and outputs a first amplified signal;
- a second amplifier that amplifies the first amplified signal and outputs a second amplified signal;
- a matching network disposed between an output terminal of the first amplifier and an input terminal of the second amplifier, the matching network having an adjustable impedance transformation characteristic;
- a switch circuit that is supplied with the second amplified signal and outputs the second amplified signal from one of a plurality of output terminals;
- and
- a control circuit that outputs a control signal, wherein:
- the first amplifier and the switch circuit are provided on a first chip,
- the second amplifier is provided on a second chip, and
- the control circuit is provided on the first chip between the first amplifier and the switch circuit.
A power amplifier module comprising:
- a first amplifier that amplifies an input signal and outputs a first amplified signal;
- a second amplifier that amplifies the first amplified signal and outputs a second amplified signal;
- a matching network disposed between an output terminal of the first amplifier and an input terminal of the second amplifier, the matching network having an adjustable impedance transformation characteristic;
- a switch circuit that is supplied with the second amplified signal and outputs the second amplified signal from one of a plurality of output terminals;
- and
- a control circuit that outputs a control signal, wherein:
- the first amplifier and the switch circuit are provided on a first chip,
- the second amplifier is provided on a second chip,
- the control circuit is provided on the first chip between the first amplifier and the switch circuit, and
- the impedance transformation characteristic of the matching network is adjustable in accordance with the control signal.
Dependencies are inferred from the claim text.