Realization and modulation of negative permeability using an array of hexaferrite rods

被引：8

作者：

Xu, Fang ^{[1
]}

Bai, Yang ^{[1
]}

Ai, Fen ^{[1
]}

Qiao, Lijie ^{[1
]}

Zhao, Hongjie ^{[2
]}

Zhou, Ji ^{[2
]}

机构：

[1] Univ Sci & Technol Beijing, Key Lab Environm Fracture, Minist Educ, Ctr Corros & Protect, Beijing 100083, Peoples R China

[2] Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2009年 / 42卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1088/0022-3727/42/6/065416

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The realization of negative permeability of an array of ferrite rods and the influencing factors are presented. The negative permeability is realized around the ferromagnetic resonance frequency of ferrite, and a tunable electromagnetic band gap is observed in the array of ferrite rods. The electromagnetic property of the array of ferrite rods is dominated by the unit's characteristics, including the dimension of the rods, but is insensitive to the structure parameters, such as spacing distance and duty ratio, which indicates that the array is a metamaterial, not a photonic crystal. Metamaterials with multi-band gaps are made using an array with different ferrite rods.

引用

页数：5

共 21 条

[1] Demagnetizing factors for rectangular ferromagnetic prisms [J].