Field computations through the ACA algorithm

R. Maaskant, V. Lancellotti

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


The adaptive cross approximation algorithm is invoked for the fast construction of the method-of-moment matrix involving source basis functions for the currents and a set of auxiliary test functions that samples the radiated electromagnetic (EM) field. Once the adaptive cross approximation coupling matrix is constructed, the far and near fields from a source current are obtained directly through a single matrix-vector product. The post-processing method is particularly fast when the EM fields are smoothly varying over their sampling domain, or when far fields need to be computed for many current distributions, e.g., for sets of macro basis functions arising in several domain decomposition methods.
Original languageEnglish
Title of host publicationProceedings of the 9th European Conference on Antennas and Propagation (EUCAP 2015), 12-17 April 2015, Lisbon, Portugal
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Publication statusPublished - 2015
Event9th European Conference on Antennas and Propagation (EuCAP 2015) - Lisbon, Portugal
Duration: 13 May 201517 May 2015
Conference number: 9


Conference9th European Conference on Antennas and Propagation (EuCAP 2015)
Abbreviated titleEuCAP 2015
Internet address


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