Title :
TM-scattering from a rectangular channel in a conducting plane
Author :
Eom, H.J. ; Park, T.J. ; Yoshitomi, K. ; Choi, T.I.
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
Abstract :
Transverse magnetic (TM) plane-wave scattering from a rectangular channel engraved in a perfectly conducting plane is investigated. A Fourier-transform technique is employed to express the scattered field in the spectral domain in terms of parallel-plate waveguide modes. An approximate series solution for scattering is presented in a closed-form which is valid for the high-frequency scattering regime. Approximate solutions which are valid for the quasi-static and low-frequency scattering regimes are also obtained. Using the stationary phase approximation, the far-zone scattered field is obtained and its scattering behavior is studied in terms of the scattering angle, frequency, and channel size.<>
Keywords :
Fourier transforms; electromagnetic wave scattering; radar cross-sections; spectral-domain analysis; waveguide theory; 2D EM scattering; Fourier-transform technique; RCS; TM plane wave scattering; far-zone scattered field; high-frequency scattering regime; low-frequency scattering; parallel-plate waveguide modes; perfectly conducting plane; quasi-static scattering; rectangular channel; scattered field; spectral domain; stationary phase approximation; Computer science; Dielectric losses; Electromagnetic coupling; Electromagnetic fields; Electromagnetic scattering; Electromagnetic waveguides; Frequency; Radar cross section; Radar scattering; Transmission line matrix methods;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221914
