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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >New approach for the analysis and design of negative-resistance oscillators: Application to a Quasi-MMIC VCO
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New approach for the analysis and design of negative-resistance oscillators: Application to a Quasi-MMIC VCO

机译：负阻振荡器分析和设计的新方法：在准MMIC VCO中的应用

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This article proposes a new approach for the analysis and design of negative-resistance oscillators using computer-aided engineering tools. The method presented does not require any special probe and makes the oscillator design similar to the methodology applied to amplifiers. It speeds up convergence and avoids uncertainties in the solution. The negative-resistance oscillator is split into two parts: an active-amplifying part and a resonator part. A chain is constructed by linking both parts and repeating them several times, which is known as the repeated circuit simulation procedure. This method allows the separation of the signal flowing between them. Small-signal AC-sweep and harmonic-balance techniques, both available in several commercial software packages, are applied. This method is theoretically justified and shows convergence with less iteration. Furthermore, it is more robust than standard harmonic-balance probes in the case of multiple frequencies of oscillation. It has been demonstrated in the design of a quasi-MMIC VCO. This VCO has an external resonator circuit (coaxial resonator and varactor) and a MMIC negative-resistance circuit, which was manufactured using ED02AH p-HEMT technology (OMMIC). (C) 2006 Wiley Periodicals, Inc.
机译：本文提出了一种使用计算机辅助工程工具分析和设计负电阻振荡器的新方法。提出的方法不需要任何特殊的探头，并且使振荡器的设计类似于应用于放大器的方法。它加快了收敛速度，并避免了解决方案中的不确定性。负电阻振荡器分为两部分：有源放大部分和谐振器部分。通过链接两个部分并将它们重复几次来构造一条链，这称为重复电路仿真过程。这种方法允许分离它们之间流动的信号。应用了几种商业软件包中都可用的小信号交流扫描和谐波平衡技术。该方法在理论上是合理的，并且显示了较少迭代的收敛性。此外，在多个振荡频率的情况下，它比标准谐波平衡探头更坚固。准MMIC VCO的设计已经证明了这一点。该VCO具有外部谐振器电路（同轴谐振器和变容二极管）和MMIC负电阻电路，该电路是使用ED02AH p-HEMT技术（OMMIC）制造的。 （C）2006年Wiley Periodicals，Inc.

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