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肖东菁

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[问答]

VNA问题的无线鼠标和键盘干扰

虽然我认为这根本不是一个问题,但我对其他人有一些说服力。
我想直接从马的嘴里听到意见。
是否有任何来自无线键盘和鼠标(典型的2.4GHz设备)的干扰信号会影响VNA和/或TDR上的测量?
此致,KTB

以上来自于谷歌翻译


     以下为原文

  While I don't believe this would ever be an issue at all, I have some convincing to do to others. I would like to hear opinions straight from the horse's mouth. Has there ever been any cases of interference signals from wireless keyboards and mice (typical 2.4GHz devices) affecting measurements on a VNA and/or TDR?

Regards,
KTB  

回帖(1)

刘华湘

2018-10-16 07:48:51
如果您使用良好的屏蔽电缆并且DUT也是屏蔽的,那么它应该不是问题。
我们一直在VNA周围使用无线鼠标,从来没有遇到过问题。
如果您的测量设置的任何部分未被屏蔽,并且您正在使用其中一种宽带测量(如噪声系数或频谱分析仪模式(如果您的VNA恰好是PNA或PNA-X),那么您可能会发现问题。
在这种情况下,您可以看到附近任何发射器的杂散信号,其频率接近您正在测量的频段。

以上来自于谷歌翻译


     以下为原文

  if you are using good shielded cables and the DUT is also shielded, then it shouldn't be a problem.  we use wireless mice around our VNAs all the time and never had a problem.  where you might see a problem is if any part of your measurement setup is unshielded and you are using one of the wideband measurements like Noise Figure or Spectrum Analyzer mode (if your VNA happens to be a PNA or PNA-X).  in situations like that you could see spurious signals from any emitter nearby that has frequencies close to the band you are measuring.
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