Enhancing the Number of Modes in Metasurfaced Reverberation Chambers for Field Uniformity Improvement

被引：7

作者：

Sun, Hengyi ^{[1
,2
]}

Gu, Changqing ^{[1
]}

Li, Zhuo ^{[1
]}

Xu, Qian ^{[1
]}

Song, Jiajia ^{[1
]}

Xu, Baijie ^{[1
]}

Dong, Xiaohang ^{[1
]}

Wang, Kuan ^{[1
]}

Martin, Ferran ^{[2
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Elect & Informat Engn, Minist Educ, Key Lab Radar Imaging & Microwave Photon, Nanjing 211106, Jiangsu, Peoples R China

[2] Univ Autonoma Barcelona, Dept Engn Elect, CIMITEC, E-08193 Barcelona, Spain

来源：

SENSORS | 2018年 / 18卷 / 10期

基金：

中国国家自然科学基金;

关键词：

metasurface; reverberation chamber; modes; field uniformity;

D O I：

10.3390/s18103301

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The use of metasurfaces to increase the number of modes, lower the operating frequency, and improve the field uniformity in reverberation chambers (RCs) is investigated in this paper. The method used to improve the field uniformity and decrease the resonance frequencies is based on increasing the number of modes by using the concept of subwavelength cavities. The resonance frequencies of a RC with metasurface wall are derived and expressed analytically in terms of macroscopic characteristics. Simulation of the reflection phase of the unit cell is then given as a guideline to choose the required microscopic parameters of the designed metasurface. The mode density in such subwavelength RCs is then obtained using a numerical eigenmode solver. Compared to traditional RCs, a much higher modal density is obtained at low frequencies. The standard deviation of the field uniformity in the test volume of the RC corresponding to different types of metasurface walls is finally compared. It is shown that by increasing the number of modes in the RC at the lower band, the operating frequency decreases and the field uniformity of the RC is improved.

引用

页数：10

共 24 条

[11] An Idea for Thin Subwavelength Cavity Resonators Using Metamaterials With Negative Permittivity and Permeability [J].

Engheta, Nader .

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2002, 1 :10-13

[12] Statistics of the electromagnetic response of a chaotic reverberation chamber [J].

Gros, J. -B. ;

Kuhl, U. ;

Legrand, O. ;

Mortessagne, F. ;

Picon, O. ;

Richalot, E. .

ADVANCED ELECTROMAGNETICS, 2015, 4 (02) :38-43

[13] Hybridized resonances to design tunable binary phase metasurface unit cells [J].

Kaina, Nadege ;

Dupre, Matthieu ;

Fink, Mathias ;

Lerosey, Geoffroy .

OPTICS EXPRESS, 2014, 22 (16) :18881-18888

[14] Investigation of reverberation chamber measurements through high-power goodness-of-fit tests [J].

Lemoine, Christophe ;

Besnier, Philippe ;

Drissi, M'hamed .

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, 2007, 49 (04) :745-755

[15] High permittivity quaternary metal (HfTaTiOx) oxide layer as an alternative high-κ gate dielectric [J].

Li, Hong-Jyh ;

Price, J. ;

Gardner, Mark ;

Lu, Nan ;

Kwong, Dim-Lee .

APPLIED PHYSICS LETTERS, 2006, 89 (10)

[16] Statistical model of an undermoded reverberation chamber [J].

Orjubin, G ;

Richalot, E ;

Mengué, S ;

Picon, O .

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, 2006, 48 (01) :248-251

[17]

Seetharamdoo D., 2011, P EMC EUR 2011 YORK

[18] Development and Validation of New Reverberation Chamber for Wireless Devices [J].

Sim, Dong-Uk ;

Kwak, Sang Il ;

Kwon, Jong Hwa ;

Park, Seong-Ook .

WIRELESS COMMUNICATIONS & MOBILE COMPUTING, 2018,

[19]

Song J., 2018, P 2018 IEEE INT S EL

[20] Metasurfaced Reverberation Chamber [J].

Sun, Hengyi ;

Li, Zhuo ;

Gu, Changqing ;

Xu, Qian ;

Chen, Xinlei ;

Sun, Yunhe ;

Lu, Shengchen ;

Martin, Ferran .

SCIENTIFIC REPORTS, 2018, 8

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