Simulation-assisted design and analysis of varactor-based frequency multipliers and dividers
Simulation-assisted design and analysis of varactor-based frequency multipliers and dividers
复制标题
基于变容二极管的倍频器和除频器的仿真辅助设计和分析
DOI：
10.1109/tmtt.2005.864108
复制
发表时间：
2006
影响因子：
4.3
通讯作者：
R. Melville
中科院分区：
文献类型：
--
作者：
A. Suárez;R. Melville
基于变容二极管的变频电路具有拓扑结构简单、效率高、带宽合理、输入信号隔离性好等优点。然而，它们经常表现出寄生振荡，这使设计复杂化并限制了它们的适用性。在分频器的情况下，操作频带由分叉现象限定。在本文中，这些电路的行为进行了研究，通过谐波平衡技术的稳定性分析和分叉检测能力。该技术被应用于三倍频，分频器的3和分数阶分频器的3/2的设计。在所有情况下都获得了良好的实验性能。与模拟结果的差异已被发现是由于集总元件的高公差。
Varactor-based circuits, used for frequency conversion, have the advantages of a simple topology, high efficiency, reasonable bandwidth, and good isolation of the input signal. However, they often exhibit spurious oscillations, which complicate the design and limit their applicability. In the case of frequency dividers, the operation bands are bounded by bifurcation phenomena. In this paper, the behavior of these circuits is investigated with stability-analysis and bifurcation-detection capabilities through harmonic-balance techniques. The techniques are applied for the design of a frequency tripler, a frequency divider-by-3 and a fractional-order frequency divider-by-3/2. Good experimental behavior has been obtained in all cases. The discrepancies with the simulated results have been found to be due to the high tolerances of the lumped elements.