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首页> 外文期刊>IEEE Transactions on Electromagnetic Compatibility >Nonlinear Responses of Microwave Oscillators to External Illumination Predicted by an Equation-Based Collective Approach
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Nonlinear Responses of Microwave Oscillators to External Illumination Predicted by an Equation-Based Collective Approach

机译：基于方程的集体方法预测的微波振荡器对外部照明的非线性响应

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This paper provides a comprehensive study on and a collective prediction approach to the responses of a microstrip microwave oscillator illuminated by an external plane wave. The field-induced responses are complicated and can be divided into periodic, quasi-periodic, and chaotic regimes. These responses can be effectively simulated by a harmonic-balance simulator based on the newly proposed approach. The main effort of this approach is to incorporate the equation-based equivalent sources with an auxiliary source embedded in the circuit schematic, which is then solved by the circuit simulator. The equivalent sources stand for the plane-wave incidence while the auxiliary source is added to search for the nontrivial solutions. Also based on this approach, the stability property of the obtained solutions can be confirmed, and the predictions of the phase-noise degradation and the demarcation of the chaotic response are provided. A 2.5-GHz oscillator is created and simulated by this approach, and the measurement performed inside a standardized anechoic chamber is compared to the simulation with good agreement. Indeed, the oscillator is observed to have the periodic, quasi-periodic, and chaotic responses. In the periodic regime, the oscillation may be locked or blocked by the external incidence. In the quasi-periodic regime, the oscillation frequency shifts and the phase noise varies. In the chaotic regime, the output spectrum is continuous.
机译：本文对由外部平面波照射的微带微波振荡器的响应进行了全面的研究，并提出了一种集体预测方法。场感应响应是复杂的，可以分为周期性，准周期性和混沌状态。这些响应可以由谐波平衡模拟器基于新提出的方法进行有效地模拟。这种方法的主要工作是将基于等式的等效源与嵌入电路原理图中的辅助源合并，然后由电路模拟器解决。等效源代表平面波入射，而添加辅助源以搜索非平凡解。同样基于这种方法，可以确认所获得解决方案的稳定性，并提供了相位噪声退化和混沌响应分界的预测。通过这种方法创建并仿真了一个2.5 GHz振荡器，并将标准化消声室内部的测量结果与仿真结果进行了比较比较吻合。实际上，观察到振荡器具有周期性，准周期性和混沌响应。在周期性状态下，振荡可能被外部入射锁定或阻止。在准周期状态下，振荡频率移动并且相位噪声变化。在混沌状态下，输出频谱是连续的。

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