NDLI: Investigation of a method for numerical solution of nonstationary waveguide equations

Content Provider	Springer Nature Link
Author	Koroza, V. I. Golikov, M. N.
Copyright Year	2009
Abstract	Results of numerical time-domain calculation of propagation and transformation of ultrawideband electromagnetic pulses in irregular metal waveguides with a variable section are presented for the example of a coaxial corrugated structure. The calculation is performed with the use of a system of nonstationary waveguide equations. A method for estimation of the computation error is described. The method involves the following components (below, referred to as features): monitoring the energy balance, integral estimation of the error in the calculated field, and estimation of the accuracy of the computational realization of the boundary condition on the boundary of the perfect conductor. With the use of a coaxial corrugated structure as an example, it is shown that, for each of the above features, the application of the proposed polynomial basis in the calculations guarantees an accuracy that substantially exceeds the accuracy of measurements. It is shown that the basis of comparison waveguides provides for highly accurate computations in the rms approximation, in spite of the fact that the application of the third feature is impeded because, for a waveguide with a variable section, the boundary conditions cannot be satisfied on perfectly conducting boundary Γ.
Starting Page	245
Ending Page	258
Page Count	14
File Format	PDF
ISSN	10642269
Journal	Journal of Communications Technology and Electronics
Volume Number	54
Issue Number	3
e-ISSN	15556557
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2009-03-28
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Numerical approximation and analysis Waveguides, transmission lines, striplines Communications Engineering, Networks
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Condensed Matter Physics Electrical and Electronic Engineering Radiation

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