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What does the best network analyzer look like?
425VNA 的选型标准很大程度上取决于应用或使用场景。 通常情况下，选型标准包括频率范围、需要的端口数量（从 2 个到 24个（多端口）乃至 48 个（使用开关矩阵））、输出功率，以及从经济型到手持式再到高端的仪器等级。 矢量网络分析仪既是信号发生器又是接收机...
View Full VersionHow does a vector network analyzer work?
网络分析仪包括信号源和接收机。 接收机将会检测器件（或网络）的输出信号的变化，然后与输入该器件的源信号进行比较。 为了评测器件对电流和电压的影响，VNA 会测量其引起的幅度和相位响应。 由此得到传输和反射测量结果、阻抗和 s 参数，测试工程师可以根据这些结果表征他们的被测器件。
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How do I use a DC power supply?
445可编程直流电源通过与直流电源面板相连的导线连接到被测器件。 工程师可以设置电压或电流电平，从而为器件供电以便进行测试。 ,
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How to read the measurement results of a digital multimeter?
356Most handheld or benchtop digital multimeters display measurements digitally. The number of digits displayed on the screen usually represents the measurement resolution of the digital multimeter. Resolution is the smallest detail that a digital multimeter can quantitatively determine when making a measurement. Therefore, the more digits a digital multimeter displays, the higher its resolution. Handheld digital multimeters are typically capable of displaying three-and-a-half and four...
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What is the frequency of electricity?
425What does the frequency of electricity mean? Here are the basics of frequency, regionality, and measurement Since electricity and voltage are invisible things, many people will think they are elusive. But in fact, they are only invisible, and it is not difficult to understand them. Below, we will introduce the frequency basis of electricity and voltage in an easy-to-understand way, regional differences in frequency, and how...
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