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网络分析仪频宽测试时应如何设置?_广州美达克公司

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网络分析仪频宽测试时应如何设置?

发布时间：2021-07-07 浏览次数：1028

　　网络分析仪频宽测试时应如何设置?一起来看看吧!!!

　　IFBW带宽是指网络分析仪接收机内部中频滤波器的带宽，设置IFBW通常需要平衡动态范围和测量速度两个因素。

　　较宽的IFBW进入接收端的噪声越大，噪底越高，动态范围(最大端口输出功率和噪底之差)的动态范围越小，迹线噪声也越大;而设置较窄的IFBW可以改善噪底、动态范围和迹线噪声。由于滤波器带宽越小，实现它所需的阶数越高，采样点越多，速度就越慢。

　　设定IFBW总的原则是在保证所要求的测量动态范围和迹线噪声的前提下，尽量采用较宽的IFBW.在大多数情况下，1kHz的IFBW效果更好。

　　需要购买Picoscope示波器，欢迎咨询广州美达克数据科技有限公司

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