RADIO FREQUENCY POWER AMPLIFIER

摘要

A radio frequency power amplifier comprises an input and output terminals, a main and peak amplifier stages, and an output power combiner for combining a main output signal and a peak output signal into an output signal. The output power combiner comprises a first combiner terminal electrically coupled to a main output terminal, a second combiner terminal electrically coupled to a peak output terminal, a first transition structure extending from the first combiner terminal in a first direction to a first end, a second transition structure extending from the second combiner terminal in the first direction to a second end, a first electrical conductor arranged between the first and the second ends, and a second electrical conductor arranged between the second combiner terminal and the output terminal. The first electrical conductor extends in a second direction perpendicular to the first direction. The second electrical conductor extends in the first direction.

主权项

1. A radio frequency power amplifier comprising:
an input terminal for receiving an input signal having an input power and an output terminal for outputting an output signal having an output power larger than the input power, a main amplifier stage having a main input terminal for receiving a main input signal and a main output terminal for providing a main output signal, the main input terminal electrically coupled to the input terminal; a peak amplifier stage having a peak input terminal for receiving a peak input signal and a peak output terminal for providing a peak output signal, the peak input terminal electrically coupled to the input terminal, an output power combiner for combining the main output signal and the peak output signal into the output signal, comprising a first combiner terminal electrically coupled to the main output terminal for receiving the main output signal from the main output terminal and a second combiner terminal electrically coupled to the peak output terminal for receiving the peak output signal from the peak output terminal, the power combiner further comprising: a first transition structure extending from the first combiner terminal in a first direction to a first end, a second transition structure extending from the second combiner terminal in the first direction to a second end, a first electrical conductor for providing a phase shift between the main output signal and the peak output signal, the first electrical conductor being arranged between the first end and the second end, and a second electrical conductor arranged between the second combiner terminal and the output terminal for providing the output signal to the output terminal; the first electrical conductor extending in a second direction perpendicular to the first direction, the second electrical conductor extending in the first direction.