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US 12,308,809 B2Granted
Power amplification circuit
AssigneeMurata Manufacturing Co., Ltd.
InventorsShigeki Koya, Takayuki Tsutsui
Life of this patent
Estimating the term…
Abstract
A power amplification circuit includes first wiring supplied with a first signal having a first frequency, second wiring supplied with a second signal having a second frequency that differs from the first frequency, a first amplification circuit that amplifies the first signal supplied through the first wiring and supplies a first amplified signal to the second wiring, and a second amplification circuit that amplifies the signal supplied through the second wiring and outputs a second amplified signal.
Claims14
A power amplification circuit comprising:
- a first wiring configured to receive a first signal having a first frequency;
- a second wiring configured to receive a second signal having a second frequency, the first frequency band being higher than the second frequency;
- a first amplification circuit configured to amplify the first signal having the first frequency with a pre-gain and to output a first amplified signal with the pre-gain to the second wiring, the first amplified signal being supplied to the first amplification circuit through the first wiring;
- a second amplification circuit configured to receive the first amplified signal and the second signal supplied through the second wiring, and configured to amplify the first amplified signal and the second signal with a main gain to output a second amplified signal;
- and
- a third filter configured to attenuate a frequency component outside of a first frequency band that includes the first frequency, the third filter being in-line with the first wiring.
3 more elements
A power amplification circuit comprising:
- a first wiring configured to receive a first signal having a first frequency;
- a second wiring configured to receive a second signal having a second frequency, the first frequency being higher than the second frequency;
- a first amplification circuit configured to amplify the first signal having the first frequency and to output a first amplified signal to the second wiring, the first signal being supplied to the first amplification circuit through the first wiring;
- and
- a second amplification circuit configured to amplify a signal supplied through the second wiring and configured to output a second amplified signal,
- wherein the second amplification circuit comprises a plurality of amplifiers connected in series.
3 more elements
Dependencies are inferred from the claim text.