TY - GEN
T1 - Self-Dual Wideband Absorbers
AU - Estakhri, Nasim Mohammadi
AU - Engheta, Nader
AU - Kastner, Raphael
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/11/1
Y1 - 2018/11/1
N2 - Self-dual balanced structures, comprising finite electric and magnetic regions, are invariant to 90 degrees rotation if electric and magnetic regions are interchanged with the rotation. Such structures will produce no backscattering when subject to plane wave illumination along the axis of rotation provided that the Weston balanced condition r = μr is obeyed. When higher order spatial harmonics are suppressed, e.g. in a periodic structure whose unit cell is smaller than the wavelength, the entire incident power is forced to be transmitted through the structure. With proper design, this phenomenon can be exploited to produce absorbers over a wide range of frequencies, provided that the constitutive parameters adhere to the Weston condition throughout this range.
AB - Self-dual balanced structures, comprising finite electric and magnetic regions, are invariant to 90 degrees rotation if electric and magnetic regions are interchanged with the rotation. Such structures will produce no backscattering when subject to plane wave illumination along the axis of rotation provided that the Weston balanced condition r = μr is obeyed. When higher order spatial harmonics are suppressed, e.g. in a periodic structure whose unit cell is smaller than the wavelength, the entire incident power is forced to be transmitted through the structure. With proper design, this phenomenon can be exploited to produce absorbers over a wide range of frequencies, provided that the constitutive parameters adhere to the Weston condition throughout this range.
KW - Absorbers
KW - Balanced media
KW - Self-dual structures
UR - http://www.scopus.com/inward/record.url?scp=85057363745&partnerID=8YFLogxK
U2 - 10.1109/ICEAA.2018.8520470
DO - 10.1109/ICEAA.2018.8520470
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AN - SCOPUS:85057363745
T3 - Proceedings of the 2018 20th International Conference on Electromagnetics in Advanced Applications, ICEAA 2018
SP - 433
EP - 434
BT - Proceedings of the 2018 20th International Conference on Electromagnetics in Advanced Applications, ICEAA 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 20th International Conference on Electromagnetics in Advanced Applications, ICEAA 2018
Y2 - 10 September 2018 through 14 September 2018
ER -