NDLI: Alternative surface integral equation-based characteristic mode analysis of dielectric resonator antennas

Content Provider	IET Digital Library
Author	Chen, Yikai
Abstract	Dielectric resonator antennas are widely used in wireless communication systems. A theory of characteristic modes (CMs) for modal analysis of dielectric resonators is highly demanded. Although a few earlier studies had proposed CM theory for modelling scattering from dielectric bodies, the physical characteristics of these CMs and their eigenvalues are not as clear as that of those for conducting bodies. This study revisits the CM theory for dielectric resonators. Following the Poynting's theorem and the PMCHWT (Poggio, Miller, Chang, Harrington, Wu, and Tsai) equation, two generalised eigenvalue equations are formulated. The resultant eigenvalues possess clear physical meanings that are the same as those of perfectly electrically conducting problems. In addition, other possible CM formulations based on the PMCHWT equation are also discussed. Mathematical proofs are given in the Appendix to show how to formulate CM theory to physically describe the fundamental resonant modes of dielectric resonators. Numerical results are given to show the proposed CM formulations are effective in solving resonant frequencies and modal fields for dielectric resonators.
Starting Page	193
Ending Page	201
Page Count	9
ISSN	17518725
Volume Number	10
e-ISSN	17518733
Issue Number	Issue 2, Jan (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/10/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2015.0304
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2016-01-29
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Alternative Surface Integral Equation-based Characteristic Mode Analysis Antenna Theory CM Theory Dielectric Body Dielectric Resonator Antenna Eigen Values And Eigen Function Electromagnetic Wave Scattering Generalised Eigenvalue Equation Integral Equation Linear Algebra Modal Analysis Numerical Analysis Other Dielectric Application And Device Perfectly Electrically Conducting Problem PMCHWT Equation Poggio Miller Chang Harrington Wu Tsai Equation Poynting Theorem Radio Communication Single Antenna Wireless Communication System
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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