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当4端口PNA-X测试混音器IMD时,需要一个外部源吗?
可以给我测试图吗? 谢谢,Yezhou 以上来自于谷歌翻译 以下为原文 When 4 port PNA-X test Mixer IMD, Need an external source? Can give me the test diagram? Thanks, Yezhou |
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如果您正在测试具有单个LO的混音器并且您想要测量IMD,那么您确实需要一个额外的外部源。
4端口PNA-X可配置为使用外部源作为混音器的LO或作为IMD测量的第2音(F2)。 最简单的配置是使用外部源作为LO。 如果您不必测量LO端口匹配,则只需在PNA-X的端口1和2之间连接混频器,并将外部源的RF输出直接连接到混频器LO端口。 你仍然需要连接PNA-X和源的10 MHz参考,你需要在PNA-X上设置外部源作为外部设备,这样PNA-X就可以控制信号源并设置其功率 和频率。 如果你确实需要测量LO匹配或任何类型的LO到RF或LO到IF隔离,那么这种设置也是可能的,但它有点复杂。 如果您确实有这些额外的测量要求,请告诉我们,我们很乐意提供测量设置的简单框图。 以上来自于谷歌翻译 以下为原文 If you are testing a mixer with a single LO and you want to measure IMD, then you do need an additional external source. the 4-port PNA-X can be configured to use the external source either as the LO for the mixer or as the 2nd tone (F2) for the IMD measurement. the most simple configuration is to use the external source as the LO. if you don't have to measure the LO port match, then you simply connect the mixer between ports 1 and 2 of the PNA-X and you connect the external source's RF output directly to the mixer LO port. you will still need to connect the 10 MHz references of the PNA-X and source together and you will need setup the external source as an external device on the PNA-X, so that the PNA-X can control the source and set its power and frequency(ies). If you do need to also measure LO match or any kind of LO to RF or LO to IF isolation, then that setup is also possible, but it is a bit more complicated. let us know if you do have these additional measurement requirements, and we'll be happy to provide a simple block diagram of the measurement setup. |
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