Ferrimagnetic Nonlinear Transmission Lines as High-Power Microwave Sources

被引:50
|
作者
Bragg, J-W Braxton [1 ]
Dickens, James C. [1 ]
Neuber, Andreas A. [1 ]
机构
[1] Texas Tech Univ, Dept Elect & Comp Engn, Ctr Pulsed Power & Power Elect, Lubbock, TX 79409 USA
关键词
Ferrimagnetic material; gyromagnetic precession; nonlinear transmission line (NLTL);
D O I
10.1109/TPS.2012.2226169
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Ferrimagnetic nonlinear transmission lines (NLTLs) have the potential to fill a high-power microwave niche where compact cost-effective sources are lacking. NLTLs utilize nonlinear ferrimagnetic properties and magnetization dynamics to provide ultrafast pulse rise times (100 ps or less) and microwave signals with peak power ranging from kilowatts to hundreds of megawatts. The frequency of operation has been shown to range from 900 MHz up to 5 GHz depending on geometry and external magnetic fields. NLTLs, theoretically, can be pulsed to tens of kilohertz with little to no variance in microwave signal between shots. This paper covers recent advances in ferrimagnetic-based NLTLs, specifically effects of applied and bias magnetic fields on peak power and frequency, as well as temperature dependence.
引用
收藏
页码:232 / 237
页数:6
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