TITLE

Magnetic tuning of electrically resonant metamaterial with inclusion of ferrite

AUTHOR(S)
Lei Kang; Qian Zhao; Hongjie Zhao; Ji Zhou
PUB. DATE
October 2008
SOURCE
Applied Physics Letters;10/27/2008, Vol. 93 Issue 17, p171909
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We experimentally demonstrate a magnetic tuning of electrically resonant metamaterial (EMM) at microwave frequencies by introducing microwave ferrite rods into the periodic array of electrically resonant element. Different from those based on controlling the capacitance of equivalent LC circuit, this tunability arises from a mechanism of magnetically tuning the inductance of resonant element via the active ambient effective permeability. For magnetic fields from 0 to 5000 Oe, resonance frequency of the EMM can be continuously and reversibly tuned in a range of about 800 MHz. The active effective permittivity has also been investigated through the simulated scattering parameters.
ACCESSION #
35279108

 

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