Multi-chip module of radio frequency power amplifier

Abstract

A multichip module of a radio frequency power amplifier includes an active transistor and a matching coupling circuit. The active transistor and matching coupling circuit are integrated in a single package carrier; the matching coupling circuit, obtained by an integrated passive device process, is used for impedance matching and signal coupling and has a coupling output connected to the second pin of the package carrier to serve as an interface for sampling coupling signals of an external circuit, and a through input connected to the output of the active transistor; the matching coupling circuit matches the optimal impedance of the active transistor to Z1; the output impedance Z1 of the through output of the matching coupling circuit is variable; the through output of the matching coupling circuit is connected to the input of a circulator; and the input impedance of the circulator is Z0, which is conjugated with Z1.

Dependencies are inferred from the claim text.