Post-processing removal of non-real characteristic modes via basis function perturbation
(2016) IEEE International Symposium on Antennas and Propagation, 2016- Abstract
- For more than 30 years since it was first proposed by Harrington et al., the Theory of Characteristic Mode (TCM) has only been applied to perfect electric conductors (PEC), and more recently lossless dielectric materials. One key challenge in computing the characteristic modes (CMs) of non-PEC materials using the PMCHWT surface integral equation is the presence of internal resonances in the solution space, due to the required forcing of symmetry on the impedance matrix. In lossless dielectrics, it was shown that these non-real CMs can be removed in post-processing through far-field power analysis. However, this method breaks down in lossy materials as it relies on the assumption of no radiation losses. This paper proposes the use of basis... (More)
- For more than 30 years since it was first proposed by Harrington et al., the Theory of Characteristic Mode (TCM) has only been applied to perfect electric conductors (PEC), and more recently lossless dielectric materials. One key challenge in computing the characteristic modes (CMs) of non-PEC materials using the PMCHWT surface integral equation is the presence of internal resonances in the solution space, due to the required forcing of symmetry on the impedance matrix. In lossless dielectrics, it was shown that these non-real CMs can be removed in post-processing through far-field power analysis. However, this method breaks down in lossy materials as it relies on the assumption of no radiation losses. This paper proposes the use of basis function perturbation to isolate the non-real CMs from the real CMs when CM analysis is applied to lossy materials. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8837537
- author
- Miers, Zachary LU and Lau, Buon Kiong LU
- organization
- publishing date
- 2016
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Characteristic modes, antenna design, dielectric resonator antennas
- host publication
- 2016 IEEE International Symposium on Antennas and Propagation (APSURSI)
- pages
- 2 pages
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- conference name
- IEEE International Symposium on Antennas and Propagation, 2016
- conference location
- Fajardo, Puerto Rico, United States
- conference dates
- 2016-06-26 - 2016-07-01
- external identifiers
-
- scopus:84997113346
- ISBN
- 978-1-5090-2886-3
- DOI
- 10.1109/APS.2016.7695918
- project
- Systematic Antenna Design Using the Theory of Characteristic Modes
- EIT_Optantsys Novel Antenna System Design Paradigm for High Performance Mobile Communications
- language
- English
- LU publication?
- yes
- id
- 1b5071b8-592c-40ea-ac70-c91c1333233b (old id 8837537)
- date added to LUP
- 2016-04-04 14:09:27
- date last changed
- 2022-05-10 03:16:05
@inproceedings{1b5071b8-592c-40ea-ac70-c91c1333233b, abstract = {{For more than 30 years since it was first proposed by Harrington et al., the Theory of Characteristic Mode (TCM) has only been applied to perfect electric conductors (PEC), and more recently lossless dielectric materials. One key challenge in computing the characteristic modes (CMs) of non-PEC materials using the PMCHWT surface integral equation is the presence of internal resonances in the solution space, due to the required forcing of symmetry on the impedance matrix. In lossless dielectrics, it was shown that these non-real CMs can be removed in post-processing through far-field power analysis. However, this method breaks down in lossy materials as it relies on the assumption of no radiation losses. This paper proposes the use of basis function perturbation to isolate the non-real CMs from the real CMs when CM analysis is applied to lossy materials.}}, author = {{Miers, Zachary and Lau, Buon Kiong}}, booktitle = {{2016 IEEE International Symposium on Antennas and Propagation (APSURSI)}}, isbn = {{978-1-5090-2886-3}}, keywords = {{Characteristic modes; antenna design; dielectric resonator antennas}}, language = {{eng}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, title = {{Post-processing removal of non-real characteristic modes via basis function perturbation}}, url = {{https://lup.lub.lu.se/search/files/42806252/miers_lau_aps2016b.pdf}}, doi = {{10.1109/APS.2016.7695918}}, year = {{2016}}, }