Projects per year
Abstract
Experimental operation of a gyrotron traveling wave amplifier with a helically corrugated waveguide using a thermionic cathode electron gun is presented. The coupling between the second harmonic cyclotron mode of the gyrating electron beam and the radiation occurred in the region of near infinite phase velocity over a broad frequency band. With an axis-encircling electron beam of pitch factor of ∼ 1.2, energy of 185 keV, and current of 6.0 A, the amplifier achieved an output power of 220 kW, saturated gain of 24 dB, saturated bandwidth of 8.4 to 10.4 GHz, and an interaction efficiency of 20%.
| Original language | English |
|---|---|
| Pages (from-to) | 253501 |
| Journal | Applied Physics Letters |
| Volume | 90 |
| Issue number | 25 |
| DOIs | |
| Publication status | Published - 18 Jun 2007 |
Keywords
- gyrotron traveling wave amplifier
- helically corrugatedwaveguide
- thermionic cathode electron gun
- harmonic cyclotron mode
Projects
- 2 Finished
Research output
- 89 Citations
- 3 Conference contribution book
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Helically corrugated waveguides for compression of frequency swept pulses
Macinnes, P., Ronald, K., Cross, A., Phelps, A., Young, A. & He, W., 2006, 2006 european microwave conference, volumes 1-4 . New York: IEEE, p. 1320-1322 3 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book
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Microwave pulse compression using helically corrugated waveguides
Young, A., Ronald, K., Macinnes, P., Whyte, C., Burt, G., He, W., Konoplev, I., Phelps, A., Cross, A., Samsonov, S. V., Bratman, V. L. & Denisov, G. G., 2006, 2006 IEEE International vacuum electronics conference held jointly with 2006 IEEE international vacuum electron sources . New York: IEEE, p. 555-556 (IEEE International Vacuum Electronics Conference IVEC ).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book
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W-band Gyro-BWO based on a helically corrugated waveguide
He, W., Donaldson, C., Phelps, A., Cross, A. & Ronald, K., 2006, Conference digest of the 2006 joint 31st international conference on infrared and millimeter waves and 14th international conference on terahertz electronics. Shen, XC., Lu, W., Zhang, J. & Dou, WB. (eds.). New York: IEEE, p. 88-88 1 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book
2 Citations (Scopus)