RADIO FREQUENCY CIRCUIT
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United States of America
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Issued Date -
Apr 10, 2025
app pub date -
Dec 17, 2024
filing date -
Dec 17, 2024
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Abstract
A radio frequency circuit supports a first power class and a second power class whose maximum output power is lower than that of the first power class, and includes: a first power amplifier; and a variable load matching circuit connected to an output end of the first power amplifier. Under a condition that the first power class is applied, a first power supply voltage is supplied to the first power amplifier, and a load impedance viewed from the first power amplifier is adjusted to a first impedance by the variable load matching circuit. Under a condition that the second power class is applied, a second power supply voltage is supplied to the first power amplifier, and the load impedance viewed from the first power amplifier is adjusted to a second impedance by the variable load matching circuit.
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