Study on array principle of solid-state power amplifier

Individual solid-state devices have the limit of output power level, and the solid-state power amplifier must adopt the technical approach of power synthesis to achieve high power output. In addition to generating higher power, power synthesis technology ensures that the system continues to work without failure if one or several power modules fail. Power synthesis technology can be roughly divided into four categories, using chip-level synthesis (core synthesis) in series or parallel, circuit synthesis of external resonant or nonresonant circuit, space synthesis of quasi-optical cavity or free space wave, and mixed synthesis of the above synthesis technology. This paper mainly studies the principle of solid-state power amplifier power amplifier module array, compares various power synthesis technologies, selects appropriate devices and rationally distributes all levels of amplifier indicators, so as to achieve the output gain requirements and achieve high power output.