High Power Multiple Impatt Amplifiers

A method of producing high power amplification by combining a number of moderate power Impatt reflection amplifiers is proposed and initial experimental results are reported. Power combination is to be effected by means of a new power combiner, the "Shybrid", which has particular merits making it well suited for this application. The design and performance of single "Shybrids" and "Shybrid" arrays are presented. The amplifier modules employ unpackaged diodes capable of producing ¿ to ¿ W c.w. and prototype modules have already demonstrated the target performance of 6 dB gain over a 1 GHz bandwidth at X-band. The proposed construction for the complete assemblies will be described.