Title :
Bodies with sharp edges: Calculation of near- and farfields
Author_Institution :
Inst. fuer Feldtheorie & HFT, ETH, Zurich, Switzerland
Abstract :
The application of the generalized multipole technique to solve the problem of sharp edges is described. The treatment includes: a special discretization of the boundary near the singularity; one or several extra multipoles for this special region; the division of the domain into several fictitious subdomains for lossy materials; and an appropriate weighting for ideal conductors. The near-field problem for a cylinder with a conical top and a comparison of the radar cross sections of cylinders with different tops are considered as examples.<>
Keywords :
electromagnetic field theory; radar cross-sections; cylinder; generalized multipole technique; ideal conductors; lossy materials; near-field problem; radar cross sections; sharp edges; singularity; weighting; Boundary conditions; Conducting materials; Fires; Fractals; Partial differential equations; Piecewise linear techniques; Scattering; Sea measurements; Solid modeling; Vectors;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1989. AP-S. Digest
Conference_Location :
San Jose, CA, USA
DOI :
10.1109/APS.1989.134644
