Recently a growing interest has arisen about radial line slot array (RLSA) antennas that appear to be simple and low-cost solutions for applications at high microwaves and millimeter waves. In this paper a computationally efficient Method of Moments (MoM) formulation that make use of an approximate asymptotic formula for the slot mutual admittance is presented. The formula accuracy to the asymptotic order O(r-3/2) gives sufficient accuracy for moderate slot distance (1.5-2 wavelength). This permits, in a typical RLSA analysis, avoiding the numerical integration in more than 95% of the slot pairs with a save of CPU time of the same order.
Efficient RLSA full wave analysis / M.Albani; A.Mazzinghi; A.Freni;. - ELETTRONICO. - 1:(2007), pp. 1-4. (Intervento presentato al convegno 19th International Conference on Applied Electromagnetics and Communications, 2007. ICECom 2007. tenutosi a Dubrovnik nel 24-26 Sept 2007) [10.1109/ICECOM.2007.4544464].
Efficient RLSA full wave analysis
MAZZINGHI, AGNESE;FRENI, ANGELO
2007
Abstract
Recently a growing interest has arisen about radial line slot array (RLSA) antennas that appear to be simple and low-cost solutions for applications at high microwaves and millimeter waves. In this paper a computationally efficient Method of Moments (MoM) formulation that make use of an approximate asymptotic formula for the slot mutual admittance is presented. The formula accuracy to the asymptotic order O(r-3/2) gives sufficient accuracy for moderate slot distance (1.5-2 wavelength). This permits, in a typical RLSA analysis, avoiding the numerical integration in more than 95% of the slot pairs with a save of CPU time of the same order.
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