Zobrazeno 1 - 10
of 61
pro vyhledávání: '"M.J. Salter"'
Publikováno v:
Electronics Letters, Vol 52, Iss 9, Pp 725-727 (2016)
In this Letter, a method for the broadband measurement of complex permittivity using a quasi‐optical technique is presented. After calibration of the quasi‐optical system, the material under test is inserted into the system and S‐parameters are
Externí odkaz:
https://doaj.org/article/287c1efb54534ab7a87f36c881fc36db
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 52:1266-1272
This paper discusses RF calibration schemes for one-port vector network analyzers other than the traditional short-open-load (SOL) scheme. Before use, the impedance standards are characterized by fitting polynomials to measured voltage reflection coe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67bcf4c4b8f6aa4dee51b7aca6b61bec
https://doi.org/10.1109/tim.2003.816811
https://doi.org/10.1109/tim.2003.816811
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 52:27-37
The theoretical basis and the practical implementation of an objective approach to voltage reflection coefficient (VRC) interpolation in the development of radio frequency coaxial impedance standards are presented. Variants of the scheme apply to thr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e67d2ac567fc94165deb524bb5ce1366
https://doi.org/10.1109/tim.2003.809101
https://doi.org/10.1109/tim.2003.809101
Akademický článek
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Autor:
M.J. Alexander, M.J. Salter
Publikováno v:
IEE Proceedings - Science, Measurement and Technology. 143:221-228
Using a pair of calculable standard dipole antennas above a large specially constructed ground plane it is demonstrated over the frequency range of 30-500 MHz that the antenna factor can be attributed to the standard antenna with an uncertainty as lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd77d638489e4e454e642b2ed0545bfc
https://doi.org/10.1049/ip-smt:19960606
https://doi.org/10.1049/ip-smt:19960606
Autor:
M.J. Salter, N.M. Ridler
Publikováno v:
64th ARFTG Microwave Measurements Conference, Fall 2004..
This paper presents a generalised method for evaluating the effects of the uncertainty in complex S-parameter measurements on other, related, measurement quantities. The method utilises random numbers to simulate distributions for the measured S-para
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ce9f3993c204081a868e3b238f938d0
https://doi.org/10.1109/arftgf.2004.1427564
https://doi.org/10.1109/arftgf.2004.1427564
Publikováno v:
Conference, 2003. Fall 2003. 62nd ARFTG Microwave Measurements.
This paper presents over-determined calibration schemes for vector network analysers (i.e. schemes involving more than the traditional three calibration standards). Generalised distance regression is used to obtain estimates for the three complex-val
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b5f22431c93b5b7c7cfd2bd04617b06
https://doi.org/10.1109/arftgf.2003.1459764
https://doi.org/10.1109/arftgf.2003.1459764
Publikováno v:
2004 Conference on Precision Electromagnetic Measurements.
We formulate the calibration process for a one-port vector network analyser (VNA) as a regression problem making full use of the uncertainty information available for the indicated and 'true' voltage reflection coefficients (VRCs) of the standards. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49aac5d938c4c4f4bd6986ae7c3a8c01
https://doi.org/10.1109/cpem.2004.305483
https://doi.org/10.1109/cpem.2004.305483
Autor:
M.J. Alexander, M.J. Salter
Publikováno v:
1998 Conference on Precision Electromagnetic Measurements Digest (Cat. No.98CH36254).
Two methods for calculating the properties of dipole antennas on an ideal open area test site are compared: assumption of a sinusoidal current distribution on the dipoles and the method of moments. It is shown how agreement between the methods of bet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7788e1436e01230c5c9d0254e5ceb85
https://doi.org/10.1109/cpem.1998.700132
https://doi.org/10.1109/cpem.1998.700132
Publikováno v:
IEEE 1997, EMC, Austin Style. IEEE 1997 International Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.97CH36113).
The biconical antenna has been adopted for EMC testing because of its broadband frequency coverage, 20 MHz to 300 MHz, and compact size. Potentially the antenna works very well, but some models have poor reproducibility resulting in perceptions of ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::628206dcec5d08b7e94c177301cd9bf3
https://doi.org/10.1109/isemc.1997.667546
https://doi.org/10.1109/isemc.1997.667546