V2EX vector-network-analyzer

Vector Network Analyzer

释义 Definition

矢量网络分析仪(VNA):一种用于测量射频/微波器件与网络特性的仪器,主要测量散射参数(S-parameters,如 S11、S21),同时获取信号的幅度和相位,常用于天线、滤波器、放大器、传输线等的测试与校准。

发音 Pronunciation (IPA)

/vktr ntwrk nlazr/

例句 Examples

I used a vector network analyzer to check the antenna’s return loss.
我用矢量网络分析仪检查了天线的回波损耗。

After calibration, the vector network analyzer measured the filter’s S-parameters across the entire band with high accuracy.
校准之后,矢量网络分析仪以很高的精度测量了该滤波器在整个频段内的 S 参数。

词源 Etymology

该术语由三部分构成:vector(矢量)强调测量包含幅度与相位的信息;network(网络)指被测的电路/器件系统;analyzer(分析仪)来自 analyze(分析)+ -er(表示“执行者/工具”)。合起来即“能进行矢量(幅相)网络特性分析的仪器”。

相关词 Related Words

文学/著作中的用例 Literary Works

  • Microwave Engineering(David M. Pozar)
  • Foundations for Microwave Engineering(Robert E. Collin)
  • RF Circuit Design(Christopher Bowick)
  • High-Frequency Measurements(相关射频测量教材与工程参考书中常见术语)
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