COMBINER CIRCUIT FOR A CLASS-E OUTPHASING POWER AMPLIFIER

摘要

Lumped-element based class-E Chireix combiners are disclosed that are equivalents of a quarter-wave transmission line combiner. The proposed class-E equivalent power amplifier circuits that are used can be derived from a parallel tuned class-E implementation. The proposed low-pass equivalents can behave similarly in terms of class-E performance, but absorb the 90 degree to transmission line.

主权项

1. A combiner circuit for a class-E outphasing power amplifier comprising first and second branch amplifiers, the combiner circuit comprising:
a first input node, for receiving the output signal of the first branch amplifier; a second input node, for receiving the output signal of the second branch amplifier; and an output node, for supplying a combined output signal to a load; a first inductor connected in series at the first input node, the first inductor having an input terminal connected to the first input node and an output terminal; a second inductor connected in series at the second input node, the second inductor having an input terminal connected to the second input node and an output terminal; a compensation inductor connected in series with the first inductor and directly connected to the output node; and a compensation capacitor connected in series with the second inductor and directly connected to the output node.