Author:Mofolo, ROM; Lysko, Albert A; Olwal, TO; Clarke, WADate:Sep 2011In this paper, the authors present a method of electronic beam steering for circular switched parasitic array (SPA) antennas. In circular SPA antennas, one achieves azimuth beam steering by open-circuiting and short-circuiting different ...Read more
Author:Lysko, Albert ADate:Aug 2011A new method of moments (MoM) code is discussed. The code supports standard functionality, e.g. fully automatic re-meshing and variable’s assignment, ground plane and symmetry planes. In addition, the code realizes several new features. These ...Read more
Author:Lysko, Albert ADate:Aug 2011The condition number for a method-of-moments’ impedance matrix resulting from a junction of several wires is frequency dependant and can be minimized at a given frequency using several approaches. An empirical formula for an optimum, ...Read more
Author:Lysko, Albert ADate:Sep 2012This paper introduces a new method generally termed memoization, to accelerate filling in the impedance matrix, e.g. in the method of moments (MoM). The memoization stores records for recently computed matrix elements in a cache, and, when ...Read more