MMP MODELING TECHNIQUES WITH CURVED LINE MULTIPOLES

Abstract

The MMP modeling of different scattering structures is discussed. It is shown that highly accurate near and farfield simulations are possible, not only for simple academic structures such as spheres or cubes, but also for a multiturn helical wire of finite thickness and an absorbing ferrite cylinder placed on a cable. Some typical problem classifying figures (symmetry, error, number of equations, matching points etc.) are defined in order to classify and compare different problems. MMP's symmetry exploitation concept (reducing both memory and cpu time) is explained. Although the amount of calculation increases when edges or tips are present, rather small radii of curvature may be treated using (curved or straight) line multipoles. [Vol. 9, No. 3 (1994), Special Issue on Generalized Multipole Technique (GMT), pp 69-78]