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Computational analysis and verifications of characteristic modes in real materials

Miers, Zachary LU and Lau, Buon Kiong LU (2016) In IEEE Transactions on Antennas and Propagation 64(7 (Special Issue)). p.2595-2607
Abstract
Despite its long history, the Theory of Characteristic Modes has only been utilized in antenna design for perfect electric conductors. This is due to computational problems associated with dielectrics and magnetic materials. In particular, the symmetric form of the PMCHWT surface formulation for the Method of Moments (MoM) solves for both external (real) and internal (non-real) resonances of a structure. The external resonances are the characteristic modes, whereas the internal resonances are not. This article proposes a new post-processing method capable of providing unique and real characteristic modes in all physical mediums, including lossy magnetic and dielectric materials. The method removes the internal resonances of a structure by... (More)
Despite its long history, the Theory of Characteristic Modes has only been utilized in antenna design for perfect electric conductors. This is due to computational problems associated with dielectrics and magnetic materials. In particular, the symmetric form of the PMCHWT surface formulation for the Method of Moments (MoM) solves for both external (real) and internal (non-real) resonances of a structure. The external resonances are the characteristic modes, whereas the internal resonances are not. This article proposes a new post-processing method capable of providing unique and real characteristic modes in all physical mediums, including lossy magnetic and dielectric materials. The method removes the internal resonances of a structure by defining a minimum radiated power, which is found through utilizing the physical bounds of the structure. The characteristic modes found using the proposed method are verified through the use of a MoM volume formulation, time domain antenna simulations, and experiments involving multiple antenna prototypes. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
quality factor, MIMO systems, dielectric resonant antenna, characteristic modes, Antenna design
in
IEEE Transactions on Antennas and Propagation
volume
64
issue
7 (Special Issue)
pages
13 pages
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:84978681965
  • wos:000383995200002
ISSN
0018-926X
DOI
10.1109/TAP.2016.2539387
project
EIT_Optantsys Novel Antenna System Design Paradigm for High Performance Mobile Communications
language
English
LU publication?
yes
id
6b826d3a-8cf5-4629-892f-df09d560ce37 (old id 8836555)
date added to LUP
2016-03-10 15:27:02
date last changed
2017-11-05 03:54:17
@article{6b826d3a-8cf5-4629-892f-df09d560ce37,
  abstract     = {Despite its long history, the Theory of Characteristic Modes has only been utilized in antenna design for perfect electric conductors. This is due to computational problems associated with dielectrics and magnetic materials. In particular, the symmetric form of the PMCHWT surface formulation for the Method of Moments (MoM) solves for both external (real) and internal (non-real) resonances of a structure. The external resonances are the characteristic modes, whereas the internal resonances are not. This article proposes a new post-processing method capable of providing unique and real characteristic modes in all physical mediums, including lossy magnetic and dielectric materials. The method removes the internal resonances of a structure by defining a minimum radiated power, which is found through utilizing the physical bounds of the structure. The characteristic modes found using the proposed method are verified through the use of a MoM volume formulation, time domain antenna simulations, and experiments involving multiple antenna prototypes.},
  author       = {Miers, Zachary and Lau, Buon Kiong},
  issn         = {0018-926X},
  keyword      = {quality factor,MIMO systems,dielectric resonant antenna,characteristic modes,Antenna design},
  language     = {eng},
  number       = {7 (Special Issue)},
  pages        = {2595--2607},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Transactions on Antennas and Propagation},
  title        = {Computational analysis and verifications of characteristic modes in real materials},
  url          = {http://dx.doi.org/10.1109/TAP.2016.2539387},
  volume       = {64},
  year         = {2016},
}