Dual band switchable metamaterial electromagnetic absorber

被引：74

作者：

Zhu B. ^{[1
]}

Huang C. ^{[1
]}

Feng Y. ^{[1
]}

Zhao J. ^{[1
]}

Jiang T. ^{[1
,2
]}

机构：

[1] Department of Electronic Engineering, School of Electronic Science and Engineering, Nanjing University

[2] State Key Laboratory of Millimeter Waves, Southeast University

来源：

Progress In Electromagnetics Research B | 2010年 / 24期

关键词：

All Open Access; Bronze;

D O I：

10.2528/PIERB10070802

中图分类号：

学科分类号：

摘要：

This paper presents the design, fabrication and measurement of a dual band switchable metamaterial electromagnetic absorber. The unit cell of the metamaterial consists of dipole mode electric resonators coupled by microwave diodes on one side of a dielectric substrate and metallic ground plane on the other side. Simulation and measurement results show that by forward or reverse biasing the diodes so as to change the coupling between the resonators, the absorber can be dynamically switched to operate in two adjacent frequency bands with nearly perfect peak absorption. Field distribution reveals the physical origin of the switchable performance based on the dipole mode of the electric resonator in the unit cell. It is also demonstrated that the frequency difference between the two bands can be tuned by adjusting the loading positions of the diodes with unchanged high absorption, which helps to design absorbers with specific switchable working frequencies in practical applications.

引用

页码：121 / 129

页数：8

共 16 条

[1]

Knott E.F., Shaeffer J.F., Tuley M.T., Radar Cross Section, (1985)

[2]

Hatakeyama K., Inui T., Electromagnetic wave absorber using ferrite absorbing material dispersed with short metal bers, IEEE Trans. Magn., 20, 5, pp. 1261-1263, (1984)

[3]

Matsumoto M., Miyata Y., Thin electromagnetic wave absorber for quasi-microwave band containing aligned thin magnetic metal paticles, IEEE Trans. Magn., 33, 6, pp. 4459-4464, (1997)

[4]

Salisbury W.W., Absorbent Body of Electromagnetic Waves, 10, (1952)

[5]

Munk B.A., Frequency Selective Surfaces, Theory and Design, (2000)

[6]

Landy N.I., Sajuyigbe S., Mock J.J., Smith D.R., Padilla W.J., Perfect metamaterial absorber, Phys. Rev. Lett., 100, 20, pp. 2074021-2074024, (2008)

[7]

Tao H., Landy N.I., Bingham C.M., Zhan X., Averitt R.D., Padilla W.J., A metamaterial absorber for the terahertz regime: Design, fabrication and characterization, Opt. Express, 16, 10, pp. 7181-7188, (2008)

[8]

Landy N.I., Bingham C.M., Tyler T., Jokerst N., Smith D.R., Padilla W.J., Design, theory, and measurement of a polarization-insensitive absorber for terahertz imaging, Phys. Rev. B, 79, 12, pp. 1251041-1251046, (2009)

[9]

Zhu B., Wang Z., Yu Z., Zhang Q., Zhao J., Feng Y., Jiang T., Planar metamaterial microwave absorber for all wave polarizations, Chin. Phys. Lett., 26, 11, (2009)

[10]

Wang B., Koschny T., Soukoulis C.M., Wide-angle and polarization-independent chiral metamaterial absorber, Phys. Rev. B, 80, 3, pp. 0331081-0331084, (2009)

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