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首页> 外文学位 >Design, modeling and noise measurement of oscillators using a large signal network analyzer.
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Design, modeling and noise measurement of oscillators using a large signal network analyzer.

机译：使用大型信号网络分析仪进行振荡器的设计，建模和噪声测量。

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摘要

Oscillators play a crucial role in wireless communication systems since they are used together with mixers for frequency translation. To design discrete oscillators in a more efficient way in terms of output power, a multi-harmonic real-time open-loop active load-pull technique was developed and used to find the optimal fundamental and harmonic load impedances. Multi-harmonic loaded load circuits were then designed and implemented to approach the optimal multi-harmonic load impedances and realize a stand-alone oscillator.;Then, a new behavioral modeling technique based on power dependent Volterra series was developed to model negative-resistance oscillators. The derived behavioral model predicts the harmonic load-pull behaviors and the output power characteristics of oscillators and assists with the oscillator design.;The noise characteristic of oscillator is also of great importance in communication circuits. A new generalized 1/f Kurokawa noise analysis applicable to both low and high Q oscillators is proposed for 1/f phase and amplitude noise. A theoretical correspondence between the new generalized Kurokawa theory and the impulse sensitivity function and the perturbation projection vector analyses is also derived. The proposed generalized Kurokawa theory is then applied to a Van Der Pol oscillator, a BJT Colpitts oscillator and a CMOS ring-oscillator, and a pHEMT oscillator and is verified to yield comparable results to those obtained from the matrix conversion method and the experimental result.;Also, an 1/f additive phase noise analysis for the injection-locked oscillator is presented. An additive phase noise measurement system integrated with an LSNA is also developed to effectively acquire the model parameters needed. The validity of the analytic solution is finally verified to yield reasonable agreement to the experimental result.;The additive phase noise measurement system integrated with a LSNA and a tunable monochromatic light source is further applied to characterize the additive phase noise performance of the both passivated and unpassivated AlGaN/GaN HEMT at 2 GHz under various operating conditions. Illumination with different photon energies, different drain voltages, and different load impedances are used to probe the dependence of the additive phase noise on the trap and 2DEG population.
机译：振荡器在无线通信系统中起着至关重要的作用，因为它们与混频器一起用于频率转换。为了在输出功率方面以更有效的方式设计分立振荡器，开发了一种多谐波实时开环有源负载牵引技术，该技术用于找到最佳的基波和谐波负载阻抗。然后设计并实现了多谐波负载负载电路，以逼近最佳的多谐波负载阻抗并实现独立的振荡器;然后，开发了一种基于功率相关Volterra级数的新行为建模技术来建模负电阻振荡器。推导的行为模型预测了谐振器的谐波负载-牵引行为和振荡器的输出功率特性，并有助于振荡器的设计。振荡器的噪声特性在通信电路中也非常重要。针对1 / f相位和幅度噪声，提出了一种适用于低Q和高Q振荡器的新型广义1 / f Kurokawa噪声分析。还推导了新的广义黑川理论与脉冲灵敏度函数之间的理论对应关系以及摄动投影矢量分析。然后将提出的广义Kurokawa理论应用于Van Der Pol振荡器，BJT Colpitts振荡器和CMOS环形振荡器以及pHEMT振荡器，并经过验证可以产生与从矩阵转换方法和实验结果获得的结果相当的结果。 ;此外，还介绍了注入锁定振荡器的1 / f加法相位噪声分析。还开发了与LSNA集成的加性相位噪声测量系统，以有效获取所需的模型参数。最终验证了该解析解的有效性，与实验结果合理吻合。进一步应用了集成有LSNA和可调单色光源的加性相噪声测量系统，以表征钝化和非稳态两种相加性噪声的性能。在各种工作条件下，在2 GHz下未钝化的AlGaN / GaN HEMT。使用具有不同光子能量，不同漏极电压和不同负载阻抗的照明来探测加性相位噪声对陷阱和2DEG种群的依赖性。

著录项

  • 作者

    Suh, Inwon.;

  • 作者单位

    The Ohio State University.;

  • 授予单位 The Ohio State University.;
  • 学科 Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 2011
  • 页码 144 p.
  • 总页数 144
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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