DocumentCode :
3148170
Title :
Adjustable dielectric using magnetically aligned conductive particles for microwave applications
Author :
Moon, Seung-Hyun ; Chappell, W.J.
Author_Institution :
Purdue University, West Lafayette, United States
fYear :
2010
fDate :
23-28 May 2010
Firstpage :
1
Lastpage :
1
Abstract :
In this work, we propose a novel approach to adjust a dielectric constant using a magnetically aligned anisotropic conductive epoxy for microwave systems. The purpose of this approach is to produce large adjustability of dielectric constants by controlling the orientation of conductive particles using a magnetic technique in a viscous medium. In the experiment, we demonstrated that the dielectric constant of the material was adjusted from 4.7 to 10.8 and the Q ranges from 34 to 182 at 300 MHz depending on the intensity of a magnetic field. Due to the simplicity of this material, this technique for adjusting dielectric constant is expected to be able to be used to implement the high-Q capacitor for integrated microwave systems
Keywords :
Anisotropic magnetoresistance; Capacitors; Conducting materials; Dielectric constant; Dielectric materials; Magnetic anisotropy; Magnetic fields; Magnetic materials; Microwave theory and techniques; Perpendicular magnetic anisotropy;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International
Conference_Location :
Anaheim, CA
ISSN :
0149-645X
Print_ISBN :
978-1-4244-6056-4
Electronic_ISBN :
0149-645X
Type :
conf
DOI :
10.1109/MWSYM.2010.5517844
Filename :
5517844
Link To Document :
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