Multimode, Time‐Dependent Analysis of Quasi‐Optical Gyrotrons and Gyroklystrons

A multimode, time‐dependent analysis is carried out for the quasi‐optical gyrotron to assess its promise as a high‐power millimeter wave generator. It is shown that both relatively high efficiences and single mode operation are possible. An alternate device configuration, the quasi‐optical gyroklystron, is also analyzed and is found to increase efficiency while decreasing the requirement on high‐frequency field amplitude necessary for efficient operation.