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我需要测量具有50欧姆以外终端的滤波器,主要是电感终端。
我想知道在网络分析仪上使用夹具模拟器或将S参数导出到ADS软件并在那里调整终端之间是否有任何区别? 另一个问题! 当使用夹具模拟器时,我加载了50欧姆端接的校准,是否考虑到反射参数的变化,因为端接不同,但两种情况下都使用50欧姆的电缆? 以上来自于谷歌翻译 以下为原文 I need to measure filters with terminations other than 50ohm, mostly inductive terminations. I was wondering if there is any difference between using the fixture simulator on the network analyzer or exporting the S-parameters to ADS software and adjusting the terminations there? One other question! When using fixture simulator, I load the calibration performed for 50ohm terminations, does it take into account that the reflection parameters change since the terminations are different but 50ohm sma cables are used in both cases? |
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夹具模拟器应该给出与ADS相同的结果(我负责夹具模拟器数学的定义和验证,我就是这样做的)。
几个注意事项:如果使用端口匹配并嵌入电路,则与获取S参数并将其嵌入ADS相同,前提是ADS负载仍为50欧姆。 如果使用ADS通过更改TERM元素的值来更改负载,那么您正在更改参考阻抗Z0,并且要在夹具仿真器中获得等效结果,则需要更改端口阻抗。 但你应该得到相同的结果/ 以上来自于谷歌翻译 以下为原文 Fixture simulator should give identical results to that of ADS (I was responsible for the definition and verification of the fixture simulator math and that's how I did it). A couple of notes: If you use port matching and you embed a circuit, it is the same as getting the S-paramters and embedding it in ADS, provided the ADS load is still 50 ohms. If you use ADS to change the load by changing the value of the TERM element, then you are changing the reference impedance, Z0, and to get an equivalent result in fixture simulator, you need to change the port impedance. But you should get identical results/ |
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