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

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