POWER AMPLIFIER WITH INTERNAL MATCHING NETWORK

摘要

An amplifier including an internal matching network is provided to minimize a size of a matching network by using an internal matching network as PI network performed by an inductor of a bond wire form and a capacitor using material of a high dielectric constant. A PI matching network comprises two high-capacitance capacitors(Ca) and an inductor(La). The inductor is positioned between the two high-capacitance capacitors. An internal PI matching network of 2 shift is formed by serially connecting the PI matching network into 2 shift. The internal PI matching network is formed by one capacitor instead of parallel connected two capacitors. The internal PI matching network is serially connected to an input terminal and an output terminal of an amplifier package. The high-capacitance capacitor is performed by laminating a metal pattern on a top surface and a bottom surface of a dielectric substrate inserted inside the package.