Nonuniform Line Generator for High-Power RF Applications

Line generators were attractive structures for high-power radio frequency (RF) pulse generation for two decades. Due to some disadvantages, there has been little attention to this type of generator for a relatively long time. In this paper, a nonuniform line generator is used which resolves some of the main shortcomings of conventional line generators. The considered generator can generate RF pulses at higher frequencies with considerably higher repetition rates. Furthermore, the implementation of nonuniform line generators is significantly easier than that of their conventional counterparts. Measurement results for three nonuniform line generators are presented. The possibility of generating ~10 s MW RF powers with ~100 s MHz central frequencies at ~1-kHz repetition rates is discussed. It is shown that the used technique in this paper can be a serious rival to lumped element nonlinear transmission lines (NLTLs).