Agilent 346A 噪声源是是德噪声系数解决方案的理想协同工具。由于它是宽带噪声源(10 MHz 至 18 GHz),所以无需在不同频段上使用多个信号源。噪声源的低 SWR 可以减少测量不确定度的主要来源,即测试信号的反射。反射系数从“开”到“关”的变化非常小(小于0.01),专为精确表征输入阻抗敏感型器件而设计(例如 GaAsFET 和许多 UHF 放大器)。
Agilent 346A noise source is the ideal collaborative tool for noise factor solutions. Because it is a broadband noise source (10 MHz to 18 GHz), there is no need to use multiple sources in different frequency bands. A low SWR of the noise source can reduce the main source of measurement uncertainty, which is the reflection of the test signal. The change in reflection coefficient from "on" to "off" is very small (less than 0.01) and is designed for accurate characterization of input impedance sensitive devices (such as GaAsFET and many UHF amplifiers).
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