The use of a diamond RF switch for super-highpower microwave/millimeter wav
e generation has been evaluated. An X-band chemical vapor deposition (CVD)
diamond window package was theoretically analyzed, designed, and built. Thi
rty-eight percent of an injected microwave signal with a frequency of 11.42
4 GHz was reflected from a 100-mum thick, 22-mm-dianleter CVD diamond windo
w when activated by a 160-mJ, 266-nm Nd:YAG laser The details of the CVD di
amond window design and experimental results are presented, The results hav
e high application potential for building super-high-power microwave system
s.