Fast Characterization of Mutually Coupled Array Antennas Using Isolated Antenna Far-Field Data
Artikel i vetenskaplig tidskrift, 2021

A new method is proposed to analyze antenna arrays including mutual coupling, which is based on the concept of multiple scattering and relates to the iterative Jacobi and Gauss-Seidel methods. The method employs sampled far-field data of an isolated element, which can be obtained by any full-wave simulator and consists of far fields for excitation at the antenna feed and for plane waves with different angles of incidence. Mutual interactions between the array elements are modeled by approximating the incident field as a single dual-polarized plane wave taken from the spherical wave expansion of the scattered field from any other element in the array. The accuracy and run-time performances of the method are evaluated mainly by comparing simulations for several array geometries to MoM-based full-wave solutions. The method is primarily intended as a tool for the fast sequential analysis of arrays while varying the array lattice, particularly in case of irregular or sparse lattices and complex elements requiring dense meshes in full-wave simulators. The applications of the method may thus range from the systematic analysis of mutual coupling to optimization and synthesis.

iterative methods

antenna arrays

multiple scattering

radio astronomy

sparse arrays

mutual coupling (mc)

method of moments (mom)


Tomislav Marinovic

KU Leuven

Dirk I. L. de Villiers

Universiteit Stellenbosch

Dave J. Bekers

Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek (TNO)

Anders Stjernman

Ericsson AB

Martin N. Johansson

Ericsson AB

Rob Maaskant

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Guy A. E. Vandenbosch

KU Leuven

IEEE Transactions on Antennas and Propagation

0018926x (ISSN) 15582221 (eISSN)

Vol. 69 1 206-218 9171549

Silicon-based Ka-band massive MIMO antenna systems for new telecommunication services (SILIKA)

Europeiska kommissionen (EU) (EC/H2020/721732), 2016-09-01 -- 2020-08-31.


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