Work

Accurate and Efficient Evaluation of Characteristic Modes

Year: 2018

Type: article

Abstract: A new method to improve the accuracy and efficiency of characteristic mode (CM) decomposition for perfectly conducting bodies is presented. The method uses the expansion of the Green dyadic in spherical vector waves. This expansion is utilized in the method-of-moment (MoM) solution of the electric-field integral equation to factorize the real part of the impedance matrix. The factorization is then employed in the computation of CMs, which improves the accuracy as well as the computational speed. An additional benefit is a rapid computation of far fields. The method can easily be integrated into existing MoM solvers. Several structures are investigated, illustrating the improved accuracy and performance of the new method.

Source: IEEE Transactions on Antennas and Propagation

DOI: 10.1109/tap.2018.2869642

Authors: Doruk Tayli, Miloslav Capek, Lamyae Akrou, Vit Losenicky, Lukas Jelinek, Mats Gustafsson

Institutions: Lund University, Czech Technical University in Prague, University of Coimbra

Language: English

Topic: Electromagnetic Scattering and Analysis

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Stiftelsen för Strategisk Forskning, Grantová Agentura České Republiky

Award: Source Concept of Electrically Small Antenna Synthesis