通常，这是由TRL长度不在20-160度之内引起的。
您可以通过进行同轴校准来检查，然后测量直通，将其标准化，然后测量线。
你应该得到一个平滑的轨迹，你可以直接看到相位差。
必须在相位介于20和160度之间的地方使用该线。
如果迹线不平滑，有时是因为电路板上的其他线路（如果所有线路都在一块电路板上）的作用类似于谐振器并且耦合到被测线路并吸收能量。
如果是这样，请尝试在每个其他标准上加载低成本负载。
以上来自于谷歌翻译
以下为原文
Often, this is caused by the TRL lengths not be within 20-160 degrees. You can check this by doing a coaxial calibration, then measure the thru, normalize it, then measure the line. You should get a smooth trace and you can see the phase difference directly. The line must be used where the phase is between 20 and 160 degrees.
IF the trace is not smooth, sometimes it is because other lines on the board (if all the lines are on one board) are acting like resonators and coupling to the line being measured and sucking out energy. If so, try putting a low-cost load on each of the other standards.
通常，这是由TRL长度不在20-160度之内引起的。
您可以通过进行同轴校准来检查，然后测量直通，将其标准化，然后测量线。
你应该得到一个平滑的轨迹，你可以直接看到相位差。
必须在相位介于20和160度之间的地方使用该线。
如果迹线不平滑，有时是因为电路板上的其他线路（如果所有线路都在一块电路板上）的作用类似于谐振器并且耦合到被测线路并吸收能量。
如果是这样，请尝试在每个其他标准上加载低成本负载。
以上来自于谷歌翻译
以下为原文
Often, this is caused by the TRL lengths not be within 20-160 degrees. You can check this by doing a coaxial calibration, then measure the thru, normalize it, then measure the line. You should get a smooth trace and you can see the phase difference directly. The line must be used where the phase is between 20 and 160 degrees.
IF the trace is not smooth, sometimes it is because other lines on the board (if all the lines are on one board) are acting like resonators and coupling to the line being measured and sucking out energy. If so, try putting a low-cost load on each of the other standards.
举报
