SWITCHABLE BASE FEED CIRCUIT FOR RADIO-FREQUENCY POWER AMPLIFIERS

摘要

Switchable base feed circuit for radio-frequency (RF) power amplifiers. In some embodiments, an RF power amplifier (PA) circuit can include a transistor having a base, a collector, and an emitter, with the transistor being configured to amplify an RF signal. The PA circuit can further include a bias circuit configured to provide a base bias signal to the base of the transistor. The PA circuit can further include a switchable base feed circuit implemented between the bias circuit and the base of the transistor. The switchable base feed circuit can be configured to provide a plurality of different resistance values for the base bias signal between the bias circuit and the base of the transistor. Such a PA circuit can be implemented in products such as a die, a module, and a wireless device.

主权项

1. A radio-frequency (RF) power amplifier (PA) circuit comprising:
a transistor having a base, a collector, and an emitter, the transistor configured to amplify an RF signal; a bias circuit configured to provide a base bias signal to the base of the transistor; and a switchable base feed circuit implemented between the bias circuit and the base of the transistor, the switchable base feed circuit configured to provide a plurality of different resistance values for the base bias signal between the bias circuit and the base of the transistor.