Components For High Power, Low-Noise, Wide Bandwidth RF Amplifiers

This proposed work is for the design of an innovative broadband circuit for high-power multiple beam klystrons. A key technical objective is to develop an output cavity with high interaction impedance to ensure high power and high efficiency circuit operation at reasonable beam voltages. A buncher circuit design to effect a uniform bunching current across the band will also be developed to take advantage of the broadband output cavity. The RF circuit design will be performed using state-of-art design tools, including electromagnetic, particle-in-cell, and large-signal analysis codes. Careful attention will be placed on the compatibility of the circuit with other amplifier components for future amplifier integration. The resulting design will be developed and tested in collaboration with an industrial partner during the Phase-II program.