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您好，我有一个可以串联或分流连接的组件，我想使用网络分析仪测量其参数。
我提供的评估板只有开路，短路和通过端口进行校准，所以我不知道如何校准VNA进行分流测量。 据我所知，当元件使用分析仪的2个端口串联时，我需要开路，短路和校准，否则，当元件分流时，我需要使用1个端口进行开路，短路和负载校准。 是否有必要进行负载校准以在1端口可靠地测量反射，或者是否有其他方式我只是缺失？ 非常感谢。 以上来自于谷歌翻译 以下为原文 Hello, I have a component which can be connected both in series or shunt and I want to measure its s parameters using the network analyzer. The evaluation board I have been provided only has open, short and through ports for calibration, so I don't know how to calibrate the VNA for shunt measurements. As far as I know, I need open, short and through calibration when the component is in series using 2 ports of the analyzer and otherwise, I need open, short and load calibration using 1 port when the component is shunt. Is it necessary load calibration to measure reflection reliably in 1 port or is there any other way I am just missing? Thanks a lot. 
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3个回答
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AFR非常适合这种情况。
它具有相当复杂的程序，可以真正简化夹具内的测量。 您可以在此处获取更多信息：http：//www.keysight.com/en/pd-2401937-pn-N5242A/automatic-fixture-removal-option-007?cc=US&lc=eng 以上来自于谷歌翻译 以下为原文 AFR is perfect for this situation. It has quite sophisticated routines that really simplifies in-fixture measurements. You can get more information here: http://www.keysight.com/en/pd-2401937-pn-N5242A/automatic-fixture-removal-option-007?cc=US&lc=eng |
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脑洞大赛9 发表于 2018-11-1 09:37 谢谢回复。 我想我现在看到解决问题的方法是什么。 我的网络分析仪很老了，HP 8714ET，并没有提供该选项，但它确实有一个端口扩展功能，可以完成这项工作，对吗？ 我会在灯具前校准，然后应用端口扩展。 我担心的是，我是否应该采取其他措施来纠正输电线路损耗，因为在3GHz时可能还应考虑到这一点。 以上来自于谷歌翻译 以下为原文 Thanks for the reply. I think I see now what's the way to solve the problem. My network analyzer is pretty old, HP 8714ET, and it doesn't provide that option, but it does have a port extension function which will do the job, right? I would calibrate just before the fixture and then apply the port extension. My concern is if I should do something else to correct transmission line loss, because at 3GHz probably it should be also taken into account. |
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freynew 发表于 2018-11-1 09:53 如果您的灯具没有比灯具的不匹配更好的负载，那么您也可以使用端口扩展来进行相位调整。 8714无法容纳端口扩展中的幅度补偿。 您可以尝试采用开放/短期平均值并将其放入内存并使用数据/内存来弥补损失。 以上来自于谷歌翻译 以下为原文 If your fixture doesn't have a load that is better than the poor match of the fixture, then you are just as well off using port extension for phase. 8714 has no accomodation for amplitude compensation in port extension. You could try to take an open/short average and put that into memory and use data/mem to compensate for the loss. |
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