你在做一个单独的1）源cal，然后2）接收器cal？
或者你正在做一个引导功率校准（使用复选框在S参数校准期间选择“校准源和接收器”。如果你正在做一个源和接收器校准，独立于S参数校准，那么接收器校准是
不匹配校正，并且VNA接收器（和信号源）与功率传感器不匹配会产生一些误差。使用引导功率校准将使其比功率传感器更精确。而且，并非一无所获，
如果您将功率从参考功率（通常为0 dBm）更改为其他功率，功率传感器并不完全准确。功率测量中的不匹配效应的典型误差为0.3-0.7 dB，如果您不执行引导功率
cal。最后，你如何比较功率计measuremetns和PNA接收器测量？你怎么知道每个功率源的功率是相同的？事实上，为了一个好的校准，差异应该在0.02的数量级
dB（正确地说明功率计不匹配可能导致插入的事实
也可以阅读！）您可以发布用于校准和测量的设置图，显示如何连接功率计，LPF和VNA接收器以进行比较。
以上来自于谷歌翻译
以下为原文
Are you doing a separate 1) source cal, and then 2) receiver cal? or are you doing a guided power cal (using the checkbox to select "cal source and receiver" during the S-parameter cal.
If you are doing a source and receiver cal, independ of the S-parameter cal, then the receiver cal is not match corrected, and the VNA receiver (and source) being not as well matched as a power sensor, will give some error.
Using the guided power cal will allow it to be more accurate than a power sensor.
And, not for nothing, the power sensor isn't perfectly accurate if you change the power from the reference power (usually 0 dBm) to some other power.
Typical error for mismatch effects in power measurements is 0.3-0.7 dB, if you don't do a guided power cal.
And, finally, how are you comparing the power meter measuremetns to the PNA receiver measuerments? How do you know the source power for each is the same?
In fact, for a good calibraition, the difference should be in the order of 0.02 dB (properly accounting for the fact that power meter mismatch may cause an incorrect reading too!)
you might post a drawing of the setup for calibration and measurement, showing how the power meter, LPF and VNA receiver are connected for the comparison.
你在做一个单独的1）源cal，然后2）接收器cal？
或者你正在做一个引导功率校准（使用复选框在S参数校准期间选择“校准源和接收器”。如果你正在做一个源和接收器校准，独立于S参数校准，那么接收器校准是
不匹配校正，并且VNA接收器（和信号源）与功率传感器不匹配会产生一些误差。使用引导功率校准将使其比功率传感器更精确。而且，并非一无所获，
如果您将功率从参考功率（通常为0 dBm）更改为其他功率，功率传感器并不完全准确。功率测量中的不匹配效应的典型误差为0.3-0.7 dB，如果您不执行引导功率
cal。最后，你如何比较功率计measuremetns和PNA接收器测量？你怎么知道每个功率源的功率是相同的？事实上，为了一个好的校准，差异应该在0.02的数量级
dB（正确地说明功率计不匹配可能导致插入的事实
也可以阅读！）您可以发布用于校准和测量的设置图，显示如何连接功率计，LPF和VNA接收器以进行比较。
以上来自于谷歌翻译
以下为原文
Are you doing a separate 1) source cal, and then 2) receiver cal? or are you doing a guided power cal (using the checkbox to select "cal source and receiver" during the S-parameter cal.
If you are doing a source and receiver cal, independ of the S-parameter cal, then the receiver cal is not match corrected, and the VNA receiver (and source) being not as well matched as a power sensor, will give some error.
Using the guided power cal will allow it to be more accurate than a power sensor.
And, not for nothing, the power sensor isn't perfectly accurate if you change the power from the reference power (usually 0 dBm) to some other power.
Typical error for mismatch effects in power measurements is 0.3-0.7 dB, if you don't do a guided power cal.
And, finally, how are you comparing the power meter measuremetns to the PNA receiver measuerments? How do you know the source power for each is the same?
In fact, for a good calibraition, the difference should be in the order of 0.02 dB (properly accounting for the fact that power meter mismatch may cause an incorrect reading too!)
you might post a drawing of the setup for calibration and measurement, showing how the power meter, LPF and VNA receiver are connected for the comparison.
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