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Abstract：
The superwide-band negative refraction of the symmetrical E-shaped structure designed by Yan [Phys. Rev. E 77, 056604 (2008)] may not exist. While we accepted the validity of scattering parameter simulations completely, the process of retrieving material parameters could not be justified.
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Reprint Author's Address：
Source ：
PHYSICAL REVIEW E
ISSN： 2470-0045
Year： 2010
Issue： 4
Volume： 81
2 . 3 5 2
JCR@2010
2 . 5 2 9
JCR@2020
ESI Discipline： PHYSICS;
JCR Journal Grade：2
CAS Journal Grade：2
Cited Count：
WoS CC Cited Count： 1
SCOPUS Cited Count： 1
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 3
Affiliated Colleges：
