Zobrazeno 1 - 10
of 78
pro vyhledávání: '"P.W. van der Walt"'
Autor:
P.W. van der Walt, A.S.A. du Toit
Publikováno v:
South African Journal of Information Management, Vol 8, Iss 2, Pp e1-e15 (2006)
No Abstract Available
Externí odkaz:
https://doaj.org/article/3ceb5cd632134196ba8d605e8496ffb9
Akademický článek
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Publikováno v:
2017 International Conference on Circuits, System and Simulation (ICCSS).
Multi-channel receivers often require good phase tracking between channels. If a PIN diode current controlled attenuator (CCA) is needed in each channel, the individual CCAs should track in phase over the full control range. Variations in PIN diode c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8716d489a5edf11a59b9be9592772f51
https://doi.org/10.1109/cirsyssim.2017.8023184
https://doi.org/10.1109/cirsyssim.2017.8023184
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 56:1478-1484
An axially symmetric power combiner, which utilizes a tapered conical impedance matching network to transform ten 50-Omega inputs to a central coaxial line over the X-band, is presented. The use of a conical line allows standard transverse electromag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60b86b92051ce949d71cb960c2eea205
https://doi.org/10.1109/tmtt.2008.923879
https://doi.org/10.1109/tmtt.2008.923879
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 55:281-286
An in situ tunable diode mounting topology for waveguide switches is presented and utilized to design and fabricate two evanescent-mode X-band switching modules of approximately 15% and 25% fractional bandwidth. The ability of the mounting topology t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88abedf27917c221f6ccc89b75a26b93
https://doi.org/10.1109/tmtt.2006.889146
https://doi.org/10.1109/tmtt.2006.889146
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 55:302-308
Axially symmetric power combiners, such as radial line and conical line combiners, are very effective in combining the output signals from a large number of power amplifiers over a wide band with low losses. The main problem with radial lines is the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2927c233e08c1c81293ccb94d6ce9af
https://doi.org/10.1109/tmtt.2006.890065
https://doi.org/10.1109/tmtt.2006.890065
Autor:
A.S.A. du Toit, P.W. van der Walt
Publikováno v:
Aslib Proceedings. 59:80-96
PurposeThis article aims to address the concept of information architecture as a way of visualising and describing the various information assets and the interaction of these assets within an enterprise.Design/methodology/approachThe establishment of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74a1f75b29ba884857be2f356edebf70
https://doi.org/10.1108/00012530710725223
https://doi.org/10.1108/00012530710725223
Publikováno v:
2015 IEEE Radar Conference.
Active cancellers have long been proposed to alleviate the problem of strong nearby reflections that can saturate the front-end of the receiver in an FMCW radar. In this paper the general properties and the problem of setting an active canceller to w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b77092f03ffe6c95b7a48d6dbe3d554
https://doi.org/10.1109/radarconf.2015.7411898
https://doi.org/10.1109/radarconf.2015.7411898
Publikováno v:
2015 IEEE Radar Conference.
In digital receivers with base-band sampling there is a requirement for low-pass filters in the I and Q channels that will track accurately in amplitude and phase. The general amplitude and phase sensitivity properties of LC filters are reviewed to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56dc6cd677c4ea36761b46314850dfc1
https://doi.org/10.1109/radarconf.2015.7411901
https://doi.org/10.1109/radarconf.2015.7411901
Publikováno v:
2015 Conference on Microwave Techniques (COMITE).
An S-band combline filter with improved passband separation is presented. The filter utilizes a perturbed housing to increase the capacitive end-loading of the resonators, thereby reducing the length and increasing the stop-band width. Different pert
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9065fee7fd6363e5a376767bf8ec20e7
https://doi.org/10.1109/comite.2015.7120220
https://doi.org/10.1109/comite.2015.7120220