TY - JOUR
T1 - Scattering from cavity-backed apertures
T2 - The generalized dual series solution of the concentrically loaded e-pol slit cylinder problem
AU - Ziolkowski, Richard W.
AU - Grant, J. Brian
N1 - Funding Information:
Manuscript received March 25, 1986; revised August 25, 1986. This work was supported by the US. Department of Energy under Contract W-7405-ENG48. The authors are with the Engineering Research Division, Lawrence Livermore National Laboratory, P.O. Box 5504, L-156, Livermore, CA 94550. IEEE Log Number 8613180.
PY - 1987/5
Y1 - 1987/5
N2 - The generalized dual series solution to the scattering of an E-polarized (E-pol) plane wave from an infinite circular cylinder having an infinite axial slot and enclosing an infinite concentric impedance cylinder is presented. This solution explicitly exhibits the correct edge behavior, and it can handle cylinders that are either electrically small or large without special considerations. The angle of incidence is arbitrary. A variety of current, field, and cross-section results are presented. These are compared with the corresponding H-pol problem results to establish the polarization dependencies of the aperture coupling. It is also shown that effects corresponding to the presence of the interior cavity dominate all of the scattering data. In particular, the bistatic cross sections in either case and the current induced along an interior wire in the E-pol case exhibit new resonance features that are due to the cavity-backed nature of the aperture.
AB - The generalized dual series solution to the scattering of an E-polarized (E-pol) plane wave from an infinite circular cylinder having an infinite axial slot and enclosing an infinite concentric impedance cylinder is presented. This solution explicitly exhibits the correct edge behavior, and it can handle cylinders that are either electrically small or large without special considerations. The angle of incidence is arbitrary. A variety of current, field, and cross-section results are presented. These are compared with the corresponding H-pol problem results to establish the polarization dependencies of the aperture coupling. It is also shown that effects corresponding to the presence of the interior cavity dominate all of the scattering data. In particular, the bistatic cross sections in either case and the current induced along an interior wire in the E-pol case exhibit new resonance features that are due to the cavity-backed nature of the aperture.
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U2 - 10.1109/TAP.1987.1144143
DO - 10.1109/TAP.1987.1144143
M3 - Article
AN - SCOPUS:0023344772
SN - 0018-926X
VL - 35
SP - 504
EP - 528
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 5
ER -