Complex microwave susceptibility of a ferrofluid with mag-hematite particles: Nonreciprocal phenomena in magnetic liquids

被引:7
作者
Clerjon, S [1 ]
Vincent, D [1 ]
Noyel, G [1 ]
机构
[1] Univ St Etienne, LRCCI Lab, F-42100 St Etienne, France
关键词
coaxial transmission lines; magnetic field; magnetic liquids; magnetic susceptibility; microwave devices; nonreciprocal wave propagation; permeability; rectangular waveguides;
D O I
10.1109/20.668075
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We present susceptibility measurements on a ferrofluid in the microwave frequency range with three different measurement cells: a coaxial line, an X-band rectangular waveguide, and an X-band slab-loaded rectangular waveguide. We use the reflection/transmission method to obtain the complex susceptibility chi*. We have subjected the cells to a constant magnetic field applied parallel or transversal to the propagation direction, We observe an increase of the gyromagnetic resonance phenomenon and some discrepancies between the consequences of a parallel or transversal applied field, Nonreciprocal phenomenon has been observed for the first time in a ferrofluid when a transversal field is applied to an X-band slab-loaded rectangular waveguide.
引用
收藏
页码:719 / 723
页数:5
相关论文
共 12 条