Evaluation and Reduction of Calibration Residual Uncertainty in Load-Pull Measurements at Millimeter-Wave Frequencies
Evaluation and Reduction of Calibration Residual Uncertainty in Load-Pull Measurements at Millimeter-Wave Frequencies
复制标题
毫米波频率负载牵引测量中校准残余不确定度的评估和降低
DOI：
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发表时间：
2012
影响因子：
5.6
通讯作者：
C. Bolognesi
中科院分区：
文献类型：
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作者：
V. Teppati;C. Bolognesi
在本文中，首次报道了毫米波频率下晶圆上负载拉动系统的校准残余不确定度的全面评估，以及实时和非实时负载拉动系统之间的实际比较。考虑了不确定性评估的两个品质因数，显示了两种方法之间的差异。在非实时系统的情况下，基于为此目的开发的仿真工具，显示了毫米波频率下预期的不确定性的典型值。最后，首次介绍了一种基于直通负载牵引图优化的降低非实时负载牵引测量校准残余不确定度的方法，并显示了其对 40 GHz 微波 HBT 实际测量的影响。
In this paper, a thorough evaluation of calibration residual uncertainty of on-wafer load-pull systems at millimeter-wave frequencies, with actual comparisons between real-time and non-real-time load-pull systems, is reported for the first time. Two figures of merit for uncertainty evaluation are taken into account, showing the differences between the two methodologies. In the case of non-real-time systems, based on a simulation tool developed for the purpose, typical values of uncertainties to be expected at millimeter-wave frequencies are shown. Finally, a methodology to reduce calibration residual uncertainty of non-real-time load-pull measurements, based on the optimization of a thru load-pull map, is for the first time introduced, and its effects on actual measurements of microwave HBTs at 40 GHz are shown.