Power Amplifier Subsystems & Power Amplifier Integrated AssembliesExperts at vertical integration, API is a leading manufacturer of power amplifier subsystems and integrated amplifier assemblies incorporating multi-band amplifiers, switched harmonic filter banks and high efficiency DC converters with integrated adaptive biasing controls to ensure high reliability. Wide bandwidth and high efficiency are not the only features offered in our full line of high power amplifiers. Utilizing both in-house chip and wire (hybrid), thin film, and SMT technology, our power amplifiers draw from a wide range of leading edge semiconductors. Amplifiers are offered in class A, AB, linear, and C designs in operating frequencies up to 26 GHz with output levels from 500mW to 1 kW.