Patent ID: 7193473

Claim:
A high power RF amplifier comprising: a) a main amplifier including at least two stages of amplification, a first stage of the main amplifier including impedance matching and predistortion circuitry and an amplifier, and a second stage including impedance matching circuitry and an amplifier, b) at least one peak amplifier connected in parallel with the main amplifier, each peak amplifier including at least two stages of amplification, a first stage of the at least one peak amplifier including impedance matching and predistortion circuitry and an amplifier, and a second stage including impedance matching circuitry and an amplifier, c) a signal splitter for receiving and splitting an input signal for the main amplifier and the at least one peak amplifier, d) first impedance matching circuitry for coupling signals from the signal splitter to inputs to the main amplifier and to the at least one peak amplifier, and e) second impedance matching circuitry for coupling amplified signals from the main amplifier and from the at least one peak amplifier to common output, wherein the at least two stages of amplification in the main amplifier and in the at least one peak amplifier comprise serially connected transistors which are surface mounted on a substrate and are partitioned in a packaged thick-film hybrid microelectronic circuit.