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Effects of dielectrics and internal resonances on modal analysis of terminal chassis

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Author

Summary, in English

The symmetric PMCHWT method of moments (MoM) impedance matrix allows for the characteristic modes (CMs) of a structure containing dielectric to be found. Recently, this impedance matrix was proven to provide non-real solutions which can be attributed to the MoM internal resonance problem. These internal resonances can be removed through different CM post-processing techniques. However, these studies focus on dielectric structures, whereas the majority of antennas utilize electric conductors as the radiators. As such, dielectrics are often neglected to simplify the CM analysis and hence the problem of internal resonance is overlooked. This work explores the extent of the internal resonance problem in mixed conductor-dielectric structures. The results reveal that the problem is severe even when the structures only contain small amounts of dielectric materials. Moreover, the significant impact of dielectrics on CMs reveals that dielectrics should be included in CM analysis to ensure high accuracy.

Publishing year

2016-05-31

Language

English

Publication/Series

2016 10th European Conference on Antennas and Propagation, EuCAP 2016

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • dielectric material
  • method of moments
  • terminal antennas
  • Theory of Characteristic Modes

Conference name

10th European Conference on Antennas and Propagation, 2016

Conference date

2016-04-10 - 2016-04-15

Conference place

Davos, Switzerland

Status

Published

Project

  • Systematic Antenna Design Using the Theory of Characteristic Modes
  • EIT_Optantsys Novel Antenna System Design Paradigm for High Performance Mobile Communications

ISBN/ISSN/Other

  • ISBN: 9788890701863