Spin Torque Nano-Oscillator (STNO) is a very promising candidate for the next generation telecommunication system since its small size ∼ 100 nm and high output frequency range. However, it still suffers low output power usually smaller than μW and very high phase noise. Besides, the modulation method for STNO should be further developed. The frequency modulation and amplitude modulation method for STNO can be easily applied since the non- linear nature of STNO yet it is very rare for the proposal of a phase modulation method. In this work, we propose a robust phase shift keying modulation method for STNO. Its feasibility is demonstrated with both numerical and analytical analysis, and its robustness is investigated under room temperature thermal noise. It is shown that our proposed phase modulation method can tune the phase arbitrarily, while the modulation speed can be as fast as 10 ns under room temperature. Comparing with the other phase modulation method, our approach has advantages of larger phase tuning range and stronger robustness against thermal noise.

中文翻译：

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自旋力矩纳米振荡器的鲁棒相移键控调制方法

自旋扭矩纳米振荡器 (STNO) 是下一代电信系统的非常有前途的候选者，因为它的尺寸小至 100 nm，输出频率范围高。然而，它仍然具有通常小于 μW 的低输出功率和非常高的相位噪声。此外，还应进一步发展STNO 的调制方法。由于 STNO 的非线性特性，STNO 的频率调制和幅度调制方法可以很容易地应用，但很少有人提出相位调制方法。在这项工作中，我们为 STNO 提出了一种鲁棒的相移键控调制方法。通过数值分析和分析分析证明了其可行性，并在室温热噪声下研究了其稳健性。结果表明，我们提出的相位调制方法可以任意调整相位，常温下调制速度可达10 ns。与其他相位调制方法相比，我们的方法具有更大的相位调谐范围和更强的抗热噪声鲁棒性的优点。