Zobrazeno 1 - 10
of 491
pro vyhledávání: '"A. D. R. Phelps"'
Autor:
B. Eliasson, A. Senior, M. Rietveld, A. D. R. Phelps, R. A. Cairns, K. Ronald, D. C. Speirs, R. M. G. M. Trines, I. McCrea, R. Bamford, J. T. Mendonça, R. Bingham
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-12 (2021)
Nonlinear wave mixing has been explored in space plasma. Here the authors report beat-wave Brillouin scattering experiment at EISCAT, in which two radio waves at different transmitted frequencies are driving ion acoustic waves in the ionosphere, lead
Externí odkaz:
https://doaj.org/article/0fdced3457f242afae186e917c410f81
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043272 (2020)
Electron cyclotron instabilities are of fundamental importance in space and laboratory plasmas having nonthermal electron distribution functions. Observations are reported of electromagnetic emissions at electron cyclotron harmonics in a mirror-confi
Externí odkaz:
https://doaj.org/article/481a689681c94b3fb5156b11606ba514
Publikováno v:
AIP Advances, Vol 8, Iss 10, Pp 105115-105115-8 (2018)
Planar Periodic Surface Lattice (PSL) structures of different configurations have been designed, fabricated and measured in the 140-220 GHz frequency band. Surface mode resonances are observed in ‘mesh’ PSL structures. We establish that, when mou
Externí odkaz:
https://doaj.org/article/c3f606cb0f2d44daa57b941eb0753b1b
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 2, Iss 2, p 020701 (1999)
Experimental results are presented from the first free electron maser experiment to use a pseudospark electron source. A pulsed, 70–80 kV, 10 A electron beam of normalized brightness 10^{11}Am^{-2}rad^{-2} and current density 1kAcm^{-2} from a pseu
Externí odkaz:
https://doaj.org/article/a73b02e48f6141afa54efe8af3ccb241
Publikováno v:
IEEE Transactions on Electron Devices. 70:2760-2766
Publikováno v:
IEEE Transactions on Electron Devices. 69:6342-6347
Publikováno v:
High Power Microwave Sources and Technologies Using Metamaterials. :87-126
Autor:
Adrian W. Cross, D. A. Constable, Kevin Ronald, Colin G. Whyte, Wenlong He, Alan D. R. Phelps
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 69:4377-4384
The azimuthally rippled cavity for a large-orbit, coharmonic gyro-multiplier, designed to operate at the second and fourth harmonics, at frequencies of 37.5 and 75 GHz, respectively, has been numerically and experimentally confirmed to be insensitive
Publikováno v:
2022 15th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT).
Autor:
D. C. Speirs, K. Ronald, A. D. R. Phelps, R. Vann, P. G. Huggard, H. Wang, V. H. Hall-Chen, A. Field
Publikováno v:
2022 15th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT).