Title :
A hybrid method for combining quasi-static and full-wave techniques for electromagnetic scattering problems
Author :
Olsen, Robert G. ; Hower, G.L. ; Mannikko, P.D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Washington State Univ., Pullman, WA, USA
Abstract :
Electromagnetic scattering problems containing subregions which are electrically small but geometrically complex are examined. By utilizing quasi-static methods for the small regions, full-wave methods in the remaining region, and determining necessary coupling relations between the small regions and the overall geometry, a considerable improvement in numerical efficiency is realized. The particular method developed here is valid for quasi-static regions in which magnetic induction can be ignored. Results using the proposed method have been obtained for a pair of closely spaced collinear wires. A comparison of these results with the wire antenna code, MININEC, showed excellent agreement.<>
Keywords :
electromagnetic wave scattering; EM wave scattering; MININEC; closely spaced collinear wires; coupling relations; electromagnetic scattering problems; full-wave techniques; hybrid method; numerical efficiency; quasi-static methods; wire antenna code; Conductors; Dielectrics; Electromagnetic scattering; Frequency; Geometry; Integral equations; Kernel; Maxwell equations; Testing; Wires;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
