A Study on the Phase Noise Performance of Coupled Spin Torque Oscillators

被引：0
作者：
Maji, Supriyo [1 ]
机构：
[1] Purdue Univ, Dept Elect & Comp Engn, W Lafayette, IN 47907 USA
来源：
2016 IEEE 59TH INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS (MWSCAS) | 2016年
关键词：
Spin torque oscillator; Magnetic tunnel junction; Global coupling; Phase Noise; LOCKING;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Spin transfer torque driven oscillation (STO) in magnetic tunnel junction (MTJ) device can be an attractive solution for microwave signal generation with large frequency tunability, low power consumption and small footprint. In this paper, study shows that single such STO device cannot achieve noise performance in the range suitable for RF applications. Various coupling mechanisms are explored to show that by coupling more than two oscillators globally (all reciprocal), a significant improvement in phase noise is possible. The effect of the coupling strength and the increasing number of coupled oscillators on the phase noise performance is also evaluated.
引用
收藏
页码：644 / 646
页数：3
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