The closed form expressions for devices under test are derived by means of microwave network theory and matrix techniques.
应用微波网络理论建立了基本方程，运用矩阵方法推导出待测件散射参量的闭定式表达式。
A switching instrument that operates according to user commands to connect signals among sourcing and measuring instruments and devices under test.
一种根据用户的命令在源、测量仪器和被测设备之间连接信号的切换仪器。
Space Micro received application-specific integrated circuit (ASIC) devices in March from their silicon foundry and are under test and evaluation.
这种专用集成电路，目前正处于测试和评估阶段。
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