Title :
Induced currents on slotted bodies of revolution under plane wave illumination
Author :
Donohoe, J. Patrick ; Ho, Mingtsu ; Taylor, Claybome D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Mississippi State Univ., MS, USA
Abstract :
In order to develop a basic understanding of the interaction of an ultra-wideband electromagnetic pulse with a conducting body of revolution (BOR), one must accurately compute the resulting induced currents. The general problem considered here is the computation of the induced currents on a conducting BOR which contains an aperture on one end and an electrically thin circumferential slot of variable conductivity. The specific geometry of interest is a simplified missile structure. The incident electromagnetic wave is assumed to be a temporally-impulsive plane wave which is transverse magnetic (TM) to the BOR axis. The axial aperture electric field impulse response is given for several angles of incidence. The dominant resonances in the aperture electric field are noted and the currents which produces these resonances are shown for various slot conductivities. The variation of the aperture electric field is also shown at the dominant resonances as a function of conductivity
Keywords :
conductors (electric); electric current; electric fields; electrical conductivity; electromagnetic induction; electromagnetic pulse; electromagnetic wave scattering; missiles; resonance; transient analysis; transient response; TM wave; aperture; axial aperture electric field impulse response; conducting body of revolution; dominant resonances; electrically thin circumferential slot; incident angles; incident electromagnetic wave; induced currents; missile structure; plane wave illumination; scattered fields; slot conductivities; slotted bodies of revolution; temporally impulsive plane wave; transverse magnetic wave; ultrawideband electromagnetic pulse; variable conductivity; Apertures; Conductivity; Conductors; Current density; Electric potential; Electromagnetic scattering; Integral equations; Lighting; Magnetic resonance; Surface waves;
Conference_Titel :
Southeastcon '96. Bringing Together Education, Science and Technology., Proceedings of the IEEE
Conference_Location :
Tampa, FL
Print_ISBN :
0-7803-3088-9
DOI :
10.1109/SECON.1996.510147