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Finite-element analysis of infinite and finite arrays

Published online by Cambridge University Press:  24 May 2012

John B. Manges ,
John W. Silvestro  and
Kezhong Zhao
John B. Manges*
Affiliation:
Ansys Inc., Electronic Business Unit, 225 Station Square Drive, Pittsburgh, PA 15219, USA
John W. Silvestro
Affiliation:
Ansys Inc., Electronic Business Unit, 225 Station Square Drive, Pittsburgh, PA 15219, USA
Kezhong Zhao
Affiliation:
Ansys Inc., Electronic Business Unit, 225 Station Square Drive, Pittsburgh, PA 15219, USA
*
Corresponding author: John B. Manges Email: manges@ieee.org
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Abstract

This paper considers and compares the numerical characterization of regular planar antenna arrays from two viewpoints. In the case where the array is sufficiently large, the well-known infinite array idealization applies and a very efficient simulation method is presented which combines array theory with a specialized form of the finite-element method called the transfinite element method (TFEM). Alternatively, a more direct approach is discussed in which the entire antenna array is simulated as a finite structure using recent advances in the domain decomposition method (DDM). Taken together, the two methods provide a comprehensive simulation method for regular arrays from small order to very large order.

Keywords

EM field theory and numerical techniquesAntenna designModeling and measurements
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 4 , Special Issue 3: European Microwave Week 2011 , June 2012 , pp. 357 - 364
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2012

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References

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