Frequency tunable electromagnetic metamaterial using ferroelectric loaded split rings

被引：79

作者：

Hand, Thomas H. ^{[1
]}

Cummer, Steven A. ^{[1
]}

机构：

[1] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 103卷 / 06期

关键词：

D O I：

10.1063/1.2898575

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Measurements of a frequency tunable magnetic metamaterial using metallic split rings loaded with barium strontium titanate thin film capacitors are presented. The resonant frequency of this medium is voltage tunable across a 140 MHz band centered at 1.75 GHz. S-parameter measurements in a microstrip waveguide reveal that the effective relative permeability of the slab has a roughly Lorentzian shape that reaches minimum values between -2 and -3 for biases from 0 to 5 V. The permeability of the slab can tune between positive and negative values, making it useful in applications requiring a state switchable magnetic permeability. (c) 2008 American Institute of Physics.

引用

页数：3

共 16 条

[1] The dielectric response as a function of temperature and film thickness of fiber-textured (Ba,Sr)TiO3 thin films grown by chemical vapor deposition [J].

Basceri, C ;

Streiffer, SK ;

Kingon, AI ;

Waser, R .

JOURNAL OF APPLIED PHYSICS, 1997, 82 (05) :2497-2504

[2]

CUMMER SA, 2007, ARXIVPHYSICS0703130

[3] Modulating and tuning the response of metamaterials at the unit cell level [J].

Degiron, Aloyse ;

Mock, Jack J. ;

Smith, David R. .

OPTICS EXPRESS, 2007, 15 (03) :1115-1127

[4]

ERDEMLI YE, 2005, J ELECTROMAGNET WAVE, V19, P14

[5]

GIL I, 2006, IEEE T MICROW THEORY, V54, P6

[6] Tunable negative index metamaterial using yttrium iron garnet [J].

He, Yongxue ;

He, Peng ;

Yoon, Soack Dae ;

Parimi, P. V. ;

Rachford, F. J. ;

Harris, V. G. ;

Vittoria, C. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 313 (01) :187-191

[7]

LIOU JW, 1998, J PHYS CONDENS MATT, V10, P12

[8] Extremely low frequency plasmons in metallic mesostructures [J].

Pendry, JB ;

Holden, AJ ;

Stewart, WJ ;

Youngs, I .

PHYSICAL REVIEW LETTERS, 1996, 76 (25) :4773-4776

[9] Magnetism from conductors and enhanced nonlinear phenomena [J].

Pendry, JB ;

Holden, AJ ;

Robbins, DJ ;

Stewart, WJ .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1999, 47 (11) :2075-2084

[10] High tunability barium strontium titanate thin films for rf circuit applications [J].

Pervez, NK ;

Hansen, PJ ;

York, RA .

APPLIED PHYSICS LETTERS, 2004, 85 (19) :4451-4453

← 1 2 →