Electromagnetic scattering by open circular waveguides
Article first published online: 7 DEC 2012
Copyright 1982 by the American Geophysical Union.
Volume 17, Issue 6, pages 1547–1556, November-December 1982
How to Cite
1982), Electromagnetic scattering by open circular waveguides, Radio Sci., 17(6), 1547–1556, doi:10.1029/RS017i006p01547., and (
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 28 JUL 1982
- Manuscript Received: 26 APR 1982
The calculation of the radar scattering characteristics of open circular waveguides is approached by the Wiener-Hopf technique. The Wiener-Hopf factorization functions are calculated by numerical integration, and these results are compared to dc and high-frequency asymptotic approximations. The exact Wiener-Hopf solutions for scattering, coupling, and reradiation by semi-infinite circular waveguides are then computed for representative cases including axial backscatter with no internal obstacles, and backscatter based on the coupling to and radiation from individual waveguide modes. Finally, the high-frequency asymptotic solution for axial backscatter is transformed into the time domain and compared to the result of numerical transformation of the backscatter results obtained from numerical integration.