Abstract: A solid-state direct cavity combiner (DCC) transmitter system for providing megawatts of power is featured. The system includes a resonant cavity including at least one high-power output transmission line, hundreds of high-power transistors each generating an amount of RF power input directly into the resonant cavity, and a plurality of modules each including at least one pair of high-power transistors differentially driving a transmission line and a coupling loop. Each said transmission line and coupling loop extends into the resonant cavity to match an impedance of each said high-power transistors of each said module to an impedance of said resonant cavity to electromagnetically couple power into the resonant cavity to provide the megawatts of power to the high-power output transmission line.

Abstract: A resonant cavity combined solid-state amplifier system including a resonant cavity having at least one output port coupled to a high-power transmission line. A plurality of high-power transistors are each configured to generate a variable amount of power input directly into the resonant cavity. The plurality of high-power transistors may be configured such that a failure of one or more of the plurality of high-power transistors does not substantially impede operation of the resonant cavity. A plurality of output impedance matching networks each coupled to one of the plurality of high-power transistors and extending into the resonant cavity are configured to match an impedance of each transistor to an impedance of the resonant cavity and configured to electromagnetically couple power from each of the plurality of high-power transistors into the resonant cavity to provide a combined high-power output to the high-power transmission line.

Abstract: A resonant cavity combined solid-state amplifier system including a resonant cavity having at least one output port coupled to a high-power transmission line. A plurality of high-power transistors are each configured to generate a variable amount of power input directly into the resonant cavity. The plurality of high-power transistors may be configured such that a failure of one or more of the plurality of high-power transistors does not substantially impede operation of the resonant cavity. A plurality of output impedance matching networks each coupled to one of the plurality of high-power transistors and extending into the resonant cavity are configured to match an impedance of each transistor to an impedance of the resonant cavity and configured to electromagnetically couple power from each of the plurality of high-power transistors into the resonant cavity to provide a combined high-power output to the high-power transmission line.