Generation of powerful subnanosecond microwave pulses in the range of 38-150 GHz

M I Yalandin, V G Shpak, S A Shunailov, M R Oulmaskoulov, N S Ginzburg, I V Zotova, Y V Novozhilova, A S Sergeev, A D R Phelps, A W Cross, Mark Wiggins, K Ronald

Research output: Contribution to journalArticle


Experimental measurements of coherent stimulated radiation from intense, subnanosecond electron bunches moving through a periodic waveguide and interacting with a backward propagating TM01 male are presented. The ultra-short microwave pulses in Ka, W, and G band were generated with repetition frequencies of up to 25 Hz, Observation of RF breakdown of ambient air, as well as direct measurements by hot-carrier germanium detectors, gives an estimate of the peak power up to 140 MW for the 300-400 ps pulses at 38 GHz. The initial observation of 75 GHz 10-15 MW radiation pulses with duration less than 150 ps, and of 150 GHz microwave spikes with a risetime of 75 ps are also reported.

Original languageEnglish
Pages (from-to)1615-1619
Number of pages5
JournalIEEE Transactions on Plasma Science
Issue number5
Publication statusPublished - Oct 2000


  • backward-wave oscillator
  • microwave pulse
  • subnanosecond pulse
  • superradiance
  • electron bunches

Cite this

Yalandin, M. I., Shpak, V. G., Shunailov, S. A., Oulmaskoulov, M. R., Ginzburg, N. S., Zotova, I. V., Novozhilova, Y. V., Sergeev, A. S., Phelps, A. D. R., Cross, A. W., Wiggins, M., & Ronald, K. (2000). Generation of powerful subnanosecond microwave pulses in the range of 38-150 GHz. IEEE Transactions on Plasma Science, 28(5), 1615-1619.