Results 241 to 250 of about 503,252 (278)
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Nuclear Instruments and Methods, 1974
The performance of the coaxial beam probe is improved by correct termination with the characteristic impedance of the coaxial probe. Test results are presented with 30 keV electron bunches at 50 x 10/sup 7/ pps. (WHK) Three methods devised for ripple elimination in the power supply of the 7-GeV proton synchrotron Nimrod are described.
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The performance of the coaxial beam probe is improved by correct termination with the characteristic impedance of the coaxial probe. Test results are presented with 30 keV electron bunches at 50 x 10/sup 7/ pps. (WHK) Three methods devised for ripple elimination in the power supply of the 7-GeV proton synchrotron Nimrod are described.
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A coaxial probe feed model for FDTD
Microwave and Optical Technology Letters, 2002AbstractA new FDTD model for a coaxial probe feed based on transmission lines is proposed. Both the metal probe and a material boundary at the transmission line to FDTD interface are accurately modeled. Comparisons with experimental data indicate a significant improvement compared with a previously published transmission‐line feed model.
Riku Mäkinen +3 more
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Coaxial probe modeling in waveguides and cavities
IEEE Transactions on Microwave Theory and Techniques, 1992Modeling, design, and sensitivity analysis of probe-excited cavities are presented. The three-cavity-moment method is used to obtain the two-port scattering matrix of the probe-excited semi-infinite waveguide while a novel equivalent circuit is introduced and used as a circuit model for the scattering matrix.
J.-F. Liang, H.-C. Chang, K.A. Zaki
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Conformal antennas with coaxial probe feed
2016 21st International Conference on Microwave, Radar and Wireless Communications (MIKON), 2016The article presents analysis of the impact of cylindrical antennas radius of curvature on their basic parameters and characteristics of radiation. For the selected frequency range there was designed planar and cylindrical microstrip antenna with coaxial feed. For conformal surface radius length was varied in the range 0.2 – 50 Λ0.
Marek Bugaj +3 more
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An Probe Antenna Using Coaxial Cable
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM), 2019Sensor antenna is an interesting concept for nondestructive testing. For example, we can observe the stats of reinforced concrete (RC) in buildings. However, if the concrete gets moisture by rain and so on, the quality of concrete will deteriorate. To avoid this, we have to regularly monitor the quality of the concrete.
Hibiki Hamaguchi +2 more
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Microwave heating on outside of biliary stent by coaxial probe
Proceedings of the 4th International Symposium on Applied Sciences in Biomedical and Communication Technologies, 2011Microwave thermal therapy is one of the modalities for cancer treatment. One example is microwave hyperthermia which is a thermal therapy for carcinoma based on the decrease of the survival ratio of cancer cells by heating. In particular, we have been studying the intracavitary heating using the implanted biliary stent and a thin coaxial microwave ...
Hiroshi Itakura +3 more
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Analysis of coaxial mounting and probe structures
Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356), 2003An efficient full-wave spectral domain analysis based on the integral equation method is developed for coaxial mounting and probe structure of a general form. Using this method, the algorithm for the complex input gap impedance of such structures has been derived and the calculated data are presented.
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Input impedance of a coaxial-line fed probe in a thick coaxial-line waveguide
IEEE Transactions on Microwave Theory and Techniques, 2000The Green's functions for determining the electromagnetic fields inside a semiinfinite coaxial line due to a radially directed, infinitesimally thin, and short-current element have been derived. In addition to the TEM mode, TE and TM modes are also considered.
null Edward Kai-Ning Yung +2 more
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IEEE Antennas and Propagation Society Symposium, 2004., 2004
The paper presents the analysis of the discontinuity between a coaxial and a generalized stripline waveguide and its application to the characterization of a probe inside a rectangular waveguide. The probe is modeled by a stripline whose inner conductor is stepped.
J.A. Ruiz-Cruz, K.A. Zaki, J.M. Rebollar
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The paper presents the analysis of the discontinuity between a coaxial and a generalized stripline waveguide and its application to the characterization of a probe inside a rectangular waveguide. The probe is modeled by a stripline whose inner conductor is stepped.
J.A. Ruiz-Cruz, K.A. Zaki, J.M. Rebollar
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Analysis of a coaxial probe‐fed circular waveguide
Microwave and Optical Technology Letters, 2013ABSTRACTThis article presents the investigation on the applicability of variational technique for the estimation of input impedance of a coaxial line fed probe in a circular cylindrical waveguide based on thin current approximation. In this work, the lower limit of diameter of the probe for which thin current approximation is valid has been established.
Ranajit Dey +2 more
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