TY - JOUR
T1 - Theory and Implementation of Scattering-Dark-State Particles at Microwave Frequencies
AU - Li, Huan
AU - Shen, Fazhong
AU - Ye, Dexin
AU - Xu, Kuiwen
AU - Qiao, Shan
AU - Sun, Yongzhi
AU - Zhu, Weiqiang
AU - Li, Changzhi
AU - Ran, Lixin
N1 - Funding Information:
the 333 Project of Foundation.
Funding Information:
Manuscript received March 7, 2017; revised September 20, 2017; accepted October 7, 2017. Date of publication October 17, 2017; date of current version November 30, 2017. This work was supported in part by NSFC under Grant 61701437, Grant 61771421, Grant 61771422, Grant 61601161, Grant 61528104, and Grant 61401393, in part by ZJNSF under Grant LR18F010001 and Grant LY16F010009, in part by the China Postdoctoral Science Foundation under Grant 2017M611989, in part by the China CASC foundation, in part by the Fundamental Research Funds for the Central Universities, and in part by the Program for the Top Young Innovative Talents under Grant Q1313-03. (Huan Li and Fazhong Shen contributed equally to this work.) (Corresponding author: Dexin Ye.) H. Li, F. Shen, D. Ye, K. Xu, and L. Ran are with the Laboratory of Applied Research on Electromagnetics, Zhejiang University, Hangzhou 310027, China (e-mail: desy@zju.edu.cn; ranlx@zju.edu.cn).
Publisher Copyright:
© 1963-2012 IEEE.
PY - 2017/12
Y1 - 2017/12
N2 - Recently, a special scattering phenomenon due to nanostructured metallic-dielectric particles was reported. With the plasmonic dispersion of metals at optical frequencies, these nanoparticles can exhibit a 'scattering dark state,' showing a theoretically zero Rayleigh scattering. In this paper, aiming to implement such particles at microwave frequencies, we explain this scattering state using antenna theory. The analytical result shows that when the distance between two short dipoles approaches zero, their far-field radiations can be mutually canceled at the frequency where the derived condition is satisfied. Furthermore, simulation and experiments are performed to verify that either a single particle or a random collection of such particles could have omnidirectional invisibility. The derived theory also provides a new understanding to conventional microwave structures such as frequency-selective surfaces. Our method can be applied to a broad spectrum from radio frequency to optical regime, and can potentially inspire new applications such as perfect antenna radomes.
AB - Recently, a special scattering phenomenon due to nanostructured metallic-dielectric particles was reported. With the plasmonic dispersion of metals at optical frequencies, these nanoparticles can exhibit a 'scattering dark state,' showing a theoretically zero Rayleigh scattering. In this paper, aiming to implement such particles at microwave frequencies, we explain this scattering state using antenna theory. The analytical result shows that when the distance between two short dipoles approaches zero, their far-field radiations can be mutually canceled at the frequency where the derived condition is satisfied. Furthermore, simulation and experiments are performed to verify that either a single particle or a random collection of such particles could have omnidirectional invisibility. The derived theory also provides a new understanding to conventional microwave structures such as frequency-selective surfaces. Our method can be applied to a broad spectrum from radio frequency to optical regime, and can potentially inspire new applications such as perfect antenna radomes.
KW - Frequency-selective surface (FSS)
KW - Rayleigh scattering
KW - radome
KW - scattering dark state (SDS)
UR - http://www.scopus.com/inward/record.url?scp=85032284417&partnerID=8YFLogxK
U2 - 10.1109/TAP.2017.2763626
DO - 10.1109/TAP.2017.2763626
M3 - Article
AN - SCOPUS:85032284417
VL - 65
SP - 7119
EP - 7128
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
SN - 0018-926X
IS - 12
M1 - 8070341
ER -