@inproceedings{7366071cea33435b841e7f74269dd48b,
title = "Generalized natural mode expansion for arbitrary electromagnetic fields",
abstract = "A generalized natural mode expansion theory for investigating arbitrary electromagnetic fields is presented. When an inhomogeneity is bounded with impenetrable boundaries, the field excited by arbitrary sources is expanded with a complete set of eigenmodes, which are classified into trapped modes and exterior modes. As the boundaries tend to infinity, trapped modes remain unchanged, while exterior modes form a continuum. In numerical studies, unbounded systems can be emulated by placing perfectly matched layers (PMLs) at finite extent. Simulation shows that only a few natural modes are prominent in expanding the excited field in a properly functioning device. Such a reduced modal picture can provide quick guidance as well as useful physical insight for engineering design and optimization of electromagnetic components and devices.",
author = "Dai, {Q. I.} and Chew, {W. C.} and Jiang, {L. J.}",
note = "Publisher Copyright: {\textcopyright} 2014 IEEE.; 31st General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2014 ; Conference date: 16-08-2014 Through 23-08-2014",
year = "2014",
month = oct,
day = "17",
doi = "10.1109/URSIGASS.2014.6929061",
language = "English (US)",
series = "2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014",
address = "United States",
}