In this paper, a computationally efficient method of moments (MoM) formulation is presented that makes use of an approximate asymptotic formula for the slot mutual admittance. The formula accuracy to the asymptotic order O(r-3/2) gives sufficient precision for moderate slot distance (1.5-2 wavelengths). In a typical radial line slot array analysis, this permits avoiding the numerical integration in more than 90% of the slot pairs with a savings of CPU time of the same order. © 2009 IEEE.
Albani, M., Mazzinghi, A., Freni, A. (2009). Asymptotic approximation of mutual admittance involved in MoM analysis of RLSA antennas. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 57(4), 1057-1063 [10.1109/TAP.2009.2015798].
Asymptotic approximation of mutual admittance involved in MoM analysis of RLSA antennas
Albani M.;
2009-01-01
Abstract
In this paper, a computationally efficient method of moments (MoM) formulation is presented that makes use of an approximate asymptotic formula for the slot mutual admittance. The formula accuracy to the asymptotic order O(r-3/2) gives sufficient precision for moderate slot distance (1.5-2 wavelengths). In a typical radial line slot array analysis, this permits avoiding the numerical integration in more than 90% of the slot pairs with a savings of CPU time of the same order. © 2009 IEEE.
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https://hdl.handle.net/11365/25332
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