Complete Stability Analysis of Multifunction MMIC Circuits
Complete Stability Analysis of Multifunction MMIC Circuits
复制标题
多功能 MMIC 电路的完整稳定性分析
DOI：
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发表时间：
2007
影响因子：
4.3
通讯作者：
J.L. Garcia
中科院分区：
文献类型：
--
作者：
C. Barquinero;A. Suárez;A. Herrera;J.L. Garcia
本文介绍了一种系统的方法，完全稳定性分析的非线性微波多功能电路。所提出的策略有两个不同的阶段：标称稳态解的稳定性分析和使用连续技术来有效地确定不稳定的操作范围。由于大型多功能电路中包含多个环路，因此稳定性分析要求很高。第一步是检查不同电路节点处振荡启动条件的可能满足，然后进行极点-零点识别。鉴于电路拓扑结构的复杂性，一个系统的技术是必要的观察节点的选择。这已应用于集总元件原理图和布局级别。这些稳定性分析已在小信号（线性）和大信号（非线性），因为多功能电路包括一个非线性混频器。在不稳定的情况下，振荡的起源和它的特性进行了分析，通过应用连续技术的稳态振荡的解决方案的关键电路参数。此外，敏感性屈服分析和环境条件的变化与稳定性技术相结合，也被考虑和纳入设计周期。所提出的系统方法已成功地应用于确定和校正的多功能单片微波集成电路转换器的振荡。它也以同样的方式在其他多功能电路中得到了证明。
This paper describes a systematic methodology for complete stability analysis of nonlinear microwave multifunction circuits. The proposed strategy has two different stages: the stability analysis of a nominal steady-state solution and the use of continuation techniques to efficiently determine the unstable operation ranges. The stability analysis is demanding due to the multiple loops contained in the large multifunction circuit. The first step is to check the possible fulfillment of the oscillation startup conditions at different circuit nodes followed by pole-zero identification. Given the complexity of the circuit topology, a systematic technique is necessary for the selection of the observation nodes. This has been applied at both the lumped-element schematic and the layout levels. These stability analyses have been carried out at small-signal (linear) and large-signal (nonlinear) since the multifunction circuit includes a nonlinear mixer. In the case of instability, the origin of the oscillation and its characteristics are analyzed versus the critical circuit parameters through the application of continuation techniques to the steady-state oscillatory solution. Moreover, sensitivity yield analysis and variations of environmental conditions combined with the stability techniques have also been taken into account and integrated into the design cycle. The proposed systematic approach has been successfully applied to determine and correct an oscillation of a multifunction monolithic-microwave integrated-circuit converter. It has also been proven in other multifunction circuits in the same way.