VNA一直用于此目的。
他们有一个内置的信号和接收器。
设置S21测量非常简单。
出于您的目的，无需校准，因为与您要测量的相比，工厂响应误差非常小。
唯一的问题是获得正确的延迟;
您可能需要非常密集的点才能获得良好的延迟响应（您可以通过注意延迟是由于物理距离约为1ns /英尺而存在延迟来计算点间距。然后您必须在delta频率之间具有小于180度的相位变化
点，所以找到你的延迟并设置delta_freq = delta_phase /（360 * dealy），其中delta_phase可能是60度。哦，如果你需要天线之间的长电缆，那么是的，你可能需要先做一个响应cal。
以上来自于谷歌翻译
以下为原文
VNAs are used for exactly this purpose, all the time. They have a built in sig-gen and receiver. Very simple to just set an S21 measurement. For your purposes, no need to calibration, as the factory response errors are very small compared to what you are trying to measure.
Only issue is getting the correct delay; you may need very dense points to get a good delay response (you can compute the point spacing by noting the delay is essentically due to physical distances at about 1ns/foot. And then you must have less than 180 degrees phase change between delta-frequency points, so find your delay and set delta_freq=delta_phase/(360*dealy), where delta_phase is maybe 60 degrees.
Oh, and if you need long cables between the antennas, then yeah, you might need to do a response cal first.
VNA一直用于此目的。
他们有一个内置的信号和接收器。
设置S21测量非常简单。
出于您的目的，无需校准，因为与您要测量的相比，工厂响应误差非常小。
唯一的问题是获得正确的延迟;
您可能需要非常密集的点才能获得良好的延迟响应（您可以通过注意延迟是由于物理距离约为1ns /英尺而存在延迟来计算点间距。然后您必须在delta频率之间具有小于180度的相位变化
点，所以找到你的延迟并设置delta_freq = delta_phase /（360 * dealy），其中delta_phase可能是60度。哦，如果你需要天线之间的长电缆，那么是的，你可能需要先做一个响应cal。
以上来自于谷歌翻译
以下为原文
VNAs are used for exactly this purpose, all the time. They have a built in sig-gen and receiver. Very simple to just set an S21 measurement. For your purposes, no need to calibration, as the factory response errors are very small compared to what you are trying to measure.
Only issue is getting the correct delay; you may need very dense points to get a good delay response (you can compute the point spacing by noting the delay is essentically due to physical distances at about 1ns/foot. And then you must have less than 180 degrees phase change between delta-frequency points, so find your delay and set delta_freq=delta_phase/(360*dealy), where delta_phase is maybe 60 degrees.
Oh, and if you need long cables between the antennas, then yeah, you might need to do a response cal first.
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