分析非线性电路的谐波平衡法的改进
AN IMPROVEMENT TO THE HARMONIC-BALANCE TECHNIQUE FOR ANALYZING NONLINEAR CIRCUITS
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摘要: 本文根据分析微波非线性电路的基本方法之一谐波平衡法,提出了一种加速收敛过程的改进方法,并且将其应用于微波混频器的非线性分析。在分析过程中引入了混频二极管非线性特性由时域到频域的简化变换技术,大大加快了计算速度。分析结果与已发表的结果相比较,一致性较好。这种改进的分析方法也可以推广应用于包含多个非线性器件的非线性电路的计算机辅助分析。Abstract: An improved method, which is based on the harmonic-balance technique, for speeding up the convergence of iteration procedure is presented. As example, it is applied to the nonlinear analysis of microwave mixer, in which a simple time domain to frequency domain transformation technique for the mixer diode is introducel. The use of this technique saves computing time dramatically. And the analyzing results are in good agreement with the results published. The improved method can also be extended to the CAA of nonlinear circuits with multi-devices.
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