Zobrazeno 1 - 10
of 31
pro vyhledávání: '"J.A. Lorbeck"'
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:
C.M. Loring, Tak Sum Chu, Jeff Neilson, J.A. Lorbeck, R. Schumacher, Howard Roberts Jory, Y.M. Mizuhara, J. Feinstein, Richard J. Temkin, Kevin Felch, Monica Blank, Philipp Borchard
Publikováno v:
IEEE Transactions on Plasma Science. 24:558-569
A high-power gyrotron, employing an internal converter that produces a Gaussian-like output mode, has been designed and tested. The tube employed a TE/sub 22.6.1/-mode interaction cavity that was designed for operation at a frequency of 110 GHz. An i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18cf4f3c44fe66051b8b898f93721b0e
https://doi.org/10.1109/27.532938
https://doi.org/10.1109/27.532938
Autor:
R.J. Vernon, J.A. Lorbeck
Publikováno v:
IEEE Transactions on Antennas and Propagation. 43:1383-1388
A dual-shaped dual-reflector synthesis technique is applied to the design of a quasi-optical antenna system in a high-power microwave application for which the primary radiator is not conveniently described as a point source (spherical constant-phase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f78fb652d5cd1491b07493bd8ae41a1
https://doi.org/10.1109/8.475926
https://doi.org/10.1109/8.475926
Autor:
J.A. Lorbeck, R.J. Vernon
Publikováno v:
IEEE Transactions on Antennas and Propagation. 39:1733-1741
An improved-efficiency quasi-optical antenna for the transformation of the output of a gyrotron operating in a whispering-gallery mode has been reported by M. Iima et al. (1989). The improved antenna incorporates a shaped reflecting surface attached
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11cf13dbaddeac4dfb82315c5fba585f
https://doi.org/10.1109/8.121594
https://doi.org/10.1109/8.121594
Autor:
J.A. Lorbeck, R.J. Vernon
Publikováno v:
Digest on Antennas and Propagation Society International Symposium.
A number of techniques of mode content determination of highly overmoded circular waveguides based upon open-end radiation pattern measurements have appeared in the literature. Each of these techniques is found to possess various limitations in the d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68787a7fcd4144413f56250d8b3bc8fb
https://doi.org/10.1109/aps.1989.134937
https://doi.org/10.1109/aps.1989.134937
Autor:
R.J. Vernon, J.A. Lorbeck
Publikováno v:
Proceedings of IEEE Antennas and Propagation Society International Symposium and URSI National Radio Science Meeting.
Analytic expressions for the reflector curvatures along with measured radiation patterns are given for a high-power Gaussian-beam reflector waveguide. The transverse phase structure of the beams considered are not accurately described by the simple G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1bf00d7fd25ca1244aa95da3c7d4637
https://doi.org/10.1109/aps.1994.408157
https://doi.org/10.1109/aps.1994.408157
Autor:
R.J. Vernon, J.A. Lorbeck
Publikováno v:
Antennas and Propagation Society Symposium 1991 Digest.
A synthesis procedure based on the principles of geometrical optics has been applied to the design of a dual-shaped dual-reflector antenna used to transform the output of a gyrotron operating in a whispering-gallery mode to a Gaussian free-space beam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9b743801d89332413030f57e5c79dcb
https://doi.org/10.1109/aps.1991.174872
https://doi.org/10.1109/aps.1991.174872
Publikováno v:
IEEE Antennas and Propagation Society International Symposium. 1995 Digest.
In this paper we examine the radiation pattern of a rotating TE/sub mn/ mode Vlasov feed which has been modified by the addition of corrugated flares. Such modes are produced in the cavities of high-power gyrotrons currently under development. The ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c0fe1be0b976ac167876dae4cd5f2d7
https://doi.org/10.1109/aps.1995.530117
https://doi.org/10.1109/aps.1995.530117
Autor:
Jeff Neilson, T.S. Chu, C.M. Loring, Philipp Borchard, Howard Roberts Jory, Kevin Felch, M. Blank, J.A. Lorbeck, G. Haldeman
Publikováno v:
Proceedings of International Electron Devices Meeting.
Window-temperature measurements on a double-disc sapphire window have been performed during a series of high-power, long-pulse tests of a 110 GHz, internal-converter gyrotron using a 10-/spl mu/m, infrared camera. Details of the infrared-imaging setu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a66c6ed956f91a859d750bad0990b7ad
https://doi.org/10.1109/iedm.1995.499183
https://doi.org/10.1109/iedm.1995.499183
Publikováno v:
International Conference on Plasma Science (papers in summary form only received).
Summary form only given. We have designed both internal and external versions of quasi-optical converters. We discuss an internal converter which was designed for use inside a Varian 110 GHz gyrotron producing the TE/sub 22,6/ cavity mode. This desig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ac8ad2ec207d9fcfea1fcd900b8dd79
https://doi.org/10.1109/plasma.1995.533225
https://doi.org/10.1109/plasma.1995.533225