HIGH-FREQUENCY POWER AMPLIFIER AND RADIO COMMUNICATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a high-frequency power amplifier that satisfies specifications of the gain of the amplifier and can improve the stability of the high-frequency power amplifier as a whole.SOLUTION: A high-frequency power amplifier 100 connecting in series a plurality of amplifiers using transistors connects, with metal 110 of an integrated circuit, the top surface of a silicon penetrating electrode TSV of: a first prescribed position A closest to an input terminal 101 of a transmission signal to be amplified by the high-frequency power amplifier; a second prescribed position B at an emitter terminal side of a transistor Tr1 used for a first stage amplifier; a third prescribed position C at a matching circuit provided between the first stage amplifier and a second stage amplifier; and a fourth prescribed position D at the emitter terminal side of a transistor Tr2 used for the second stage amplifier.SELECTED DRAWING: Figure 1