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Research Output 1996 2019

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2011

Numerical simulation of a Gyro-BWO with a helically corrugated interaction region, cusp electron gun and depressed collector

He, W., Donaldson, C., Zhang, L., Ronald, K., Phelps, A. & Cross, A., 26 Sep 2011, Numerical Simulations of Physical and Engineering Processes. p. 101-132 32 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Open Access
File
backward waves
electron guns
cusps
accumulators
oscillators
2009
5 Citations (Scopus)

A co-harmonic gyro-oscillator with a novel interaction cavity

Constable, D., Ronald, K., Phelps, A. D. R., Cross, A. W., He, W. & McConville, S. L., 29 Apr 2009, Proceedings of the 10th IEEE International Vacuum Electronics Conference. New York: IEEE, p. 233-234 1 p. (IEEE International Vacuum Electronics Conference IVEC).

Research output: Chapter in Book/Report/Conference proceedingChapter

oscillators
harmonics
cavities
interactions
output

Investigation of a 200GHz microklystron driven by a small-scaled pseudospark electron beam

Yin, H., Cross, A. W., He, W., Bowes, D., Ronald, K. & Phelps, A., 2009, 2009 IEEE International Vacuum Electronics Conference. New York: IEEE, p. 371-372 2 p. (IEEE International Vacuum Electronics Conference IVEC).

Research output: Chapter in Book/Report/Conference proceedingChapter

electron beams
simulation
interactions
1 Citation (Scopus)

Waveguide system for high-power microwave pulse compression

McStravick, M., Cross, A. W., He, W., Ronald, K., Whyte, C. G., Phelps, A. D. R., Konoplev, I. V. & McInnes, P., 28 Apr 2009, Proceedings of the IEEE International Vacuum Electronics Conference. New York: Optical Society of America, p. 62-63 1 p. (IEEE International Vacuum Electronics Conference IVEC).

Research output: Chapter in Book/Report/Conference proceedingChapter

pulse compression
waveguides
microwaves
pulses
sweep frequency
2008

A similar to 10kW W-Band Gyro-BWO using a Helically Corrugated Waveguide

Donaldson, C. R., He, W., Phelps, A. D. R., Li, F. P., Cross, A. W. & Ronald, K., 2008, : 33rd International Conference on Infrared, Millimeter and Terahertz Waves. Pasedena, California.: IEEE, Vol. I & II. p. 201-202 1 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

corrugated waveguides
electron guns
cusps
interactions
microwaves

Helically corrugated waveguides for compression of microwave pulses

McStravick, M., Samsonov, S. V., Cross, A. W., Denisov, G. G., He, W., MacInnes, P., Phelps, A., Ronald, K., Konoplev, I., Young, A. & Whyte, C., 4 Feb 2008, 2008 33rd international conference on infrared millimeter and terahertz waves. New York: IEEE, p. 181-182 2 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

corrugated waveguides
pulse compression
frequency modulation
field strength
cut-off
3 Citations (Scopus)

The design of a 390 GHz gyrotron based on a cusp electron gun

Li, F., He, W., Phelps, A. D. R., Cross, A. W., Donaldson, C. R. & Ronald, K., 2008, 33rd International Conference on Infrared, Millimeter and Terahertz Waves, 2008. New York: IEEE, Vol. 1/2. p. 167-168 2 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

electron guns
cusps
harmonics
wave interaction
beam currents
2007

A cusp gun Gyro-TWA with helical interaction region

Rowlands, D. H., Phelps, A. D. R., Young, A. R., Whyte, C. G., He, W., Cross, A. W., Robertson, C. W., Ronald, K. & IEEE, 2007, Proceedings of the Eighth IEEE International Vacuum Electronics Conference. IEEE, p. 235-236 1 p. (IEEE International Vacuum Electronics Conference IVEC).

Research output: Chapter in Book/Report/Conference proceedingChapter

cusps
thermionics
interactions
flares
simulation

Experimental and numerical investigation of auroral cyclotron maser processes

Phelps, A. D. R., Speirs, D., McConville, S. L., Gillespie, K. M., Ronald, K., Cross, A. W., Bingham, R. & IEEE, May 2007, Proceedings of the Eighth IEEE International Vacuum Electronics Conference. IEEE, p. 429-430 1 p. (IEEE International Vacuum Electronics Conference IVEC).

Research output: Chapter in Book/Report/Conference proceedingChapter

masers
cyclotrons
magnetic compression
electron beams
solenoids

Free-electron masers based on two-dimensional distributed feedback

Phelps, A. D. R., Konoplev, I. V., Cross, A. W., Macinnes, P., He, W., Ronald, K., Whyte, C. G. & Robertson, C. W., May 2007, IEEE International Vacuum Electronics Conference, 2007 : IVEC '07. Piscataway, New Jersey: IEEE, p. 423-424 2 p. (International Vacuum Electronics Conference IVEC).

Research output: Chapter in Book/Report/Conference proceedingChapter

Masers
masers
free electrons
Mirrors
mirrors
1 Citation (Scopus)

Modelling of free-electron maser based on two-dimensional distributed feedback

Konoplev, I. V., Phelps, A. D. R., Cross, A. W. & MacInnes, P., 2007, 2007 Joint 32nd International Conference on Infrared and Millimeter Waves/15th International Conference on Terahertz Electronics. New York, USA: IEEE, p. 830-833 3 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

masers
free electrons
mirrors
cavities
coherent radiation
8 Citations (Scopus)

Transmission profiling of phase shifted 1D Bragg reflectors in standard and coaxial waveguide

MacInnes, P., Konoplev, I. V., Cross, A. W., Phelps, A. D. R. & Ronald, K., 2007, Proceedings of the joint 32nd International Conference on Infrared and Millemeter Waves and 15th International Conference on Terahertz Electronics. New York: IEEE, Vol. Vols 1 & 2. p. 71-72 1 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Bragg reflectors
waveguides
phase shift
impedance
defects
2006

Comparison of broadband gyro-TWA simulations with experiments

Young, A. R., Whyte, C. G., Rafferty, E. G., Thomson, J., Robertson, C. W., Phelps, A. D. R., He, W., Cross, A. W. & Ronald, K., Sep 2006, Joint 31st International Conference on Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006 (IRMMW-THz 2006) . Piscataway, New Jersey: IEEE, p. 342-342 1 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

broadband
superhigh frequencies
simulation
bandwidth
harmonics

Design and simulation of a cusp gun for use in gyro-amplifiers

Rowlands, D. H., He, W., Whyte, C. G., Young, A. R., Cross, A. W., Phelps, A. D. R., Robertson, C. W. & Ronald, K., Sep 2006, Conference Digest of the 2006 Joint 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics. IEEE, p. 519-519

Research output: Chapter in Book/Report/Conference proceedingChapter

cusps
amplifiers
electron beams
simulation
particle accelerators

First operation of free-electron maser based on a combined two-mirror cavity based on 2D and 1D Bragg structures

Cross, A. W., Konoplev, I. V., He, W., Macinnes, P., Phelps, A. D. R., Ronald, K., Whyte, C. G. & Robertson, C. W., 2006, IEEE International Vacuum Electronics Conference, 2006, held jointly with 2006 IEEE International Vacuum Electron Sources. Piscataway, New Jersey: IEEE, p. 469-470 2 p. (IEEE International Vacuum Electronics Conference IVEC).

Research output: Chapter in Book/Report/Conference proceedingChapter

Masers
masers
free electrons
Mirrors
mirrors

Microwave generation from an electron horseshoe distribution: theory and experiment

Ronald, K., Phelps, A. D. R., Bingham, R., Speirs, D., Cross, A. W., Vorgul, I., Cairns, R. A., Kellett, B. J., Whyte, C. G. & Robertson, C., 2006, High Energy Density and High Power RF. Melville, N.Y, USA, Vol. 807. p. 246-251 5 p. (American Institute of Physics Conference Proceedings).

Research output: Chapter in Book/Report/Conference proceedingChapter

velocity distribution
microwaves
auroral zones
nonthermal radiation
masers
2005

Experimental study of a FEM based on a 2D distributed feedback cavity

Konoplev, I. V., McGrane, P., Ronald, K., Cross, A. W., He, W., Whyte, C. G., Phelps, A. D. R., Robertson, C. W., Speirs, D., Ginzburg, N. S., Peskov, N. Y., Sergeev, A. S., Thumm, M. & IEEE, 2005, The Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics. New Jersey, USA: IEEE, Vol. 2. p. 499-500 1 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

masers
free electrons
cavities
maser outputs
Bragg reflectors

Laboratory simulation at microwave frequencies of auroral kilometric radiation emission mechanisms

Speirs, D., Ronald, K., Phelps, A. D. R., Cross, A. W., Bingham, R., Vorgul, I., Cairns, R. A., Whyte, C. G., Robertson, C. W. & IEEE, 2005, The Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics. New Jersey, USA: IEEE, Vol. 1. p. 97-98 1 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

microwave frequencies
velocity distribution
magnetic compression
auroral zones
nonthermal radiation
2004

Results from thermionic cathode gyro-twa experiments

Phelps, A. D. R., Ronald, K., He, W., Young, A. R., Rafferty, E. G., Cross, A. W., Whyte, C. G., Thomson, J., Robertson, C. W. & IEEE, 2004, Conference Digest of the 2004 Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electionics. New Jersey, USA: IEEE, p. 273-274 1 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

thermionic cathodes
electron beams
amplifiers
traveling wave amplifiers
bandwidth