Huawei technologies co., ltd. (20250070731). POWER AMPLIFIER CIRCUIT AND RADIO FREQUENCY SYSTEM
POWER AMPLIFIER CIRCUIT AND RADIO FREQUENCY SYSTEM
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POWER AMPLIFIER CIRCUIT AND RADIO FREQUENCY SYSTEM
This abstract first appeared for US patent application 20250070731 titled 'POWER AMPLIFIER CIRCUIT AND RADIO FREQUENCY SYSTEM
Original Abstract Submitted
a power amplifier circuit includes a power amplifier unit and a broadband improvement unit. the power amplifier unit includes a signal input port, a signal output port, a power transistor, and a first inductor. the power transistor is configured to perform power amplification on radio frequency signals in a plurality of frequency bands. the broadband improvement unit adjusts a parallel resonance frequency of the power amplifier unit, to reduce envelope impedance of the power amplifier unit between a first target frequency and a second target frequency. the first target frequency is a maximum frequency difference between the plurality of frequency bands, and the second target frequency is a minimum frequency difference between the plurality of frequency bands.
