Advanced Eigenvalue Tracking of Characteristic Modes

authored by: Eugen Safin, Dirk Manteuffel
Abstract: Eigenvalue tracking is a serious issue in the calculation of characteristic modes over a wide frequency range. Two commonly used algorithms in this regard are investigated and the drawbacks that typically occur during eigenvalue tracking are explained. We discuss the effect of the degraded modes in detail. A new algorithm is presented that overcomes these drawbacks in an innovative way. The new algorithm is explained in detail and investigated with respect to its numeric stability. A rectangular plate is used as a generic example to evaluate the tracking algorithms. Finally, a fractal antenna is evaluated as an advanced example.
Organisation(s): Institute of Microwave and Wireless Systems
External Organisation(s): Kiel University
Type: Article
Journal: IEEE Transactions on Antennas and Propagation
Volume: 64
Pages: 2628-2636
No. of pages: 9
ISSN: 0018-926X
Publication date: 19.05.2016
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Electrical and Electronic Engineering
Electronic version(s): https://doi.org/10.1109/tap.2016.2556698 (Access: Closed)
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