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Applying the CBFM-enhanced domain Green's function method to the analysis of large disjoint subarray antennas

D.J. Ludick ; Rob Maaskant (Institutionen för signaler och system, Antenner) ; R.M. Mittra ; U. Jakobus ; D.B. Davidson
Proceedings of the 2013 International Conference on Electromagnetics in Advanced Applications, ICEAA 2013 p. 94-97. (2013)
[Konferensbidrag, refereegranskat]

This paper considers the efficient numerical analysis of large, finite antenna arrays comprising of disjoint subarrays by using the Domain Green's Function Method (DGFM) [1] in conjunction with the Characteristic Basis Function Method (CBFM) [2]. In the CBFM-enhanced DGFM we consider large arrays consisting of multiple disjoint subarrays and impose the infinite array type assumption, i.e. that the currents on subarrays are identical except for a complex-valued scaling factor. Scan impedance matrices are then constructed for each of the subarrays from the block-partitioned CBFM reduced impedance matrix which account for the mutual coupling in the array environment. Runtime and memory usage scale efficiently for the CBFM-enhanced DGFM as we limit the computational complexity to that required to analyse a single subarray. The paper discusses the hybridisation of the DGFM with the CBFM, and illustrates the results of applying the proposed solution technique to an example consisting of a large finite array of disjoint subarrays. © 2013 IEEE.



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Denna post skapades 2013-12-16. Senast ändrad 2014-11-07.
CPL Pubid: 189284

 

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Institutioner (Chalmers)

Institutionen för signaler och system, Antenner (2005-2014)

Ämnesområden

Informations- och kommunikationsteknik
Elektroteknik och elektronik

Chalmers infrastruktur