Zobrazeno 1 - 10
of 153
pro vyhledávání: '"R.J. Vernon"'
Publikováno v:
Journal of the Optical Society of America. A, Optics, image science, and vision. 36(4)
When a fundamental Gaussian beam at microwave frequency is incident on a reflection grating, there are spatial modifications such as lateral shift for the reflected and diffracted beam and generation of higher order Gaussian modes. Different paramete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3030408623260a7d0529d532247d3e70
https://pubmed.ncbi.nlm.nih.gov/31044965
https://pubmed.ncbi.nlm.nih.gov/31044965
Autor:
T.S. Chu, H. Huey, Howard Roberts Jory, Jeff Neilson, Kevin Felch, R. Schumacher, R.J. Vernon, J.A. Lorbeck
Publikováno v:
18th International Conference on Infrared and Millimeter Waves.
Varian is carrying out the development of high-power, CW gyrotrons at frequencies ranging from 100--140 GHz. Recent experiments, carried out at a frequency of 110 GHz, resulted in the generation of output powers of 500 kW for 2.5-second pulses and 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a9e8874b1e2b89d470a2b938f9d1466
https://doi.org/10.1117/12.2298693
https://doi.org/10.1117/12.2298693
Autor:
Michael A. Shapiro, R.J. Vernon, Sudheer Jawla, Richard J. Temkin, S. C. Schaub, Bryan J. Fox, B. Y. Rock, David S. Tax
Publikováno v:
IEEE Transactions on Plasma Science. 42:1128-1134
We report experimental results on a two frequency gyrotron, operating in the ${\rm TE}_{22,6}$ mode at 110 GHz and the ${\rm TE}_{24,7}$ mode at 124.5 GHz. The gyrotron uses the same electron gun as a previous single frequency 110-GHz gyrotron, with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1ac34bc81de8c2676bc07ba2de15db5
https://doi.org/10.1109/tps.2014.2314019
https://doi.org/10.1109/tps.2014.2314019
Autor:
B. Y. Rock, R.J. Vernon
Publikováno v:
IEEE Transactions on Plasma Science. 40:1502-1511
An improved method for the analysis of the fields within a section of nonuniform cylindrical waveguide is presented. The technique uses the method of successive approximations to obtain consistent solutions to the Stratton-Chu equations and the cylin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7a3de9e6f0f669cdecd9fac4b0f8d39
https://doi.org/10.1109/tps.2012.2192295
https://doi.org/10.1109/tps.2012.2192295
Publikováno v:
IEEE Transactions on Plasma Science. 40:1522-1529
The conventional design method for multifrequency gyrotron quasi-optical mode converters often results in excessive stray radiation within the gyrotron tube. A new design technique is introduced that integrates the designs of the launcher and mirror
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35f5c158c3d58fdef348a1c180fe3f3a
https://doi.org/10.1109/tps.2012.2192296
https://doi.org/10.1109/tps.2012.2192296
Autor:
R.J. Vernon, Shaolin Liao
Publikováno v:
IEEE Transactions on Antennas and Propagation. 57:2068-2075
A new frequency-domain algorithm, the planar Taylor expansion through the fast Fourier transform (FFT) method, has been developed to speed the computation of the Green's function related formulas in the half-space scenario for both the near-field (NF
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb0ea880fd7bac851d20f17ad6bfe7bd
https://doi.org/10.1109/tap.2009.2021890
https://doi.org/10.1109/tap.2009.2021890
Publikováno v:
Progress In Electromagnetics Research Letters. 12:79-85
The phase of the re∞ection coe-cient of a TE10 rectangular waveguide mode at the cut-ofi point in a gentle downtaper is investigated through both experiment and computer simulation. The result shows a very good agreement with the theoretical predic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f51e0dbfb97a5c9c4e282000d0a64b4
https://doi.org/10.2528/pierl09090707
https://doi.org/10.2528/pierl09090707
Publikováno v:
Journal of Electromagnetic Waves and Applications. 22:143-157
A general formula of the transmission coefficient derived from the Scattering Matrix Method (SMM) for reciprocal, lossless or lossy trapped mode structures is presented. Verifications of the theory by means of experiment and computer simulations (HFS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a50fefdf5729289eee916e05d3cf2c31
https://doi.org/10.1163/156939308783122706
https://doi.org/10.1163/156939308783122706
Autor:
M.P. Perkins, R.J. Vernon
Publikováno v:
IEEE Transactions on Plasma Science. 35:1747-1757
An iterative planar- and cylindrical-based mirror design procedure is discussed for use in a gyrotron quasi-optical mode converter. The planar-based mirrors were designed using the iterative Katsenelenbaum-Semenov phase corrector procedure with an in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41aa5797a079d710ecc0e116523eb832
https://doi.org/10.1109/tps.2007.910158
https://doi.org/10.1109/tps.2007.910158
Autor:
Shaolin Liao, R.J. Vernon
Publikováno v:
International Journal of Infrared and Millimeter Waves. 28:479-490
The newly developed Taylor-Interpolation-FFT (TI-FFT) algorithm dramatically increases the computational speeds for millimeter wave propagation from a planar (cylindrical) surface onto a “quasi-planar” (“quasi-cylindrical”) surface. Two diffe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::861723904d11b2e3aef4bde9a3e7b1f5
https://doi.org/10.1007/s10762-007-9213-0
https://doi.org/10.1007/s10762-007-9213-0