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不确定是否可以使用SP Simulation进行此操作。
我正在尝试对滤波器进行小信号仿真(我有.s2p数据2端口滤波器),我想在输出上放置一个复杂的负载,并且能够固定幅度但扫描相位。 我希望能够查看输入,看看我的最坏情况反射基于相位扫描。 我尝试使用Re + j * Im格式进行常规终止,但它似乎不起作用(加上它不会允许负阻)。 这有点像负载拉动,但我不想运行谐波平衡。 这将帮助我确定由此滤波器引起的最坏情况加载效应,该滤波器呈现给我的DUT。 我从中获得的伽玛将是我用作实际工作台级负载拉力测试的最坏情况负载。编辑:jktong于2013年10月17日下午3:46 以上来自于谷歌翻译 以下为原文 Not sure if this is possible to do using SP Simulation or not. I’m trying to do a small signal simulation of a filter (I have the .s2p data 2-port filter) and I wanted to put a complex load on the output and be able to fix the magnitude but sweep the phase. I would like to be able to look into the input to see what my worst case reflection is based on the phase sweep. I tried putting in a regular termination and using the Re+j*Im format, but it doesn’t seem to work (plus it won't allow a negative resistance). This is sort of like a load-pull, but I did not want to run a hARMonic balance. This will help me to determine a worst case loading effect caused by this filter that is presented to my DUT. The gamma I get from this will be what I use as a worst case load for an my actual bench level load-pull testing. Edited by: jktong on Oct 17, 2013 3:46 PM |
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2个回答
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根据我的理解,您希望使用可变负载进行线性1端口仿真,您可以控制幅度和相位,并扫描负载阶段。
我将这个设置为带参数扫描的线性模拟,使用这些构建块:使用System-Passive调色板中的Attenuator组件设置回波损耗*幅度*,ads_behavioral:Attenuator后跟全反射(开路或短路)。 使用系统无源调色板中的移相器组件设置回波损耗*相*,ads_behavioral:PhaseShiftSML将一个变量分配给移相器值,以便您可以扫描相位。 当然,请注意信号通过移相器和衰减器两次,因此返回损耗和相位是元件值的两倍。 检查此变量负载的输入回波损耗,以确保已设置正确的回波损耗和相位值。 以上来自于谷歌翻译 以下为原文 From what I understand, you want to do a linear 1-port simulation with a variable load, where you control the magnitude and phase, and sweep the load phase. I would set this up as a linear simulation with parameter sweep, using these building blocks: Set the return loss *magnitude* with the Attenuator component from the System-Passive palette, ads_behavioral:Attenuator followed by total reflection (open or short). Set the return loss *phase* with the Phase Shifter component from the System-Passive palette, ads_behavioral:PhaseShiftSML Assign a variable to the phase shifter value, so that you can sweep the phase. And of course, be aware that the signal passes the phase shifter and attenuator twice, so return loss and phase are twice the component values. Check the input return loss of this variable load, to make sure that you have set the proper return loss and phase values. 附件
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