Application of the Adaptive Cross Approximation Algorithm to the Sources Reconstruction Method

Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany

Proceedings: EuCAP 2009

Pages: 5Language: englishTyp: PDF

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López, Y. Á.; Las-Heras, F.; Pino, M. R. (Área de Teoría de la Señal, Universidad de Oviedo, Edificio Polivalente, Módulo 8, Planta 1, Campus Universitario de Gijón, E-33203 Gijón (Asturias), Spain)

The Sources Reconstruction Method (SRM) is an integral-equation based technique for antenna diagnostics and Near Field-to-Far Field transformation. SRM characteristics make possible the application of acceleration schemes in order to speed-up the calculation of the equivalent currents given the radiated fields. This work introduces the Adaptive Cross Approximation algorithm (ACA) combined with an iterative solver (Conjugate Gradient method, CG), with the aim of reducing the computational cost of the SRM. An application example in which the proposed CG-ACA is compared with conventional CG solution is included in the paper.