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射频功率传感器校准

Output Standing Wave Ratio (SWR) Test Using the TEGAM 1830A RF Power Meter

发布时间:2014-02-12浏览次数:
When using a power meter that references to a 50 MHz,1mW output power reference it is important to know that the 50 MHz reference is within the specified performance limits. The
TEGAM Model 1830A RF Power Meter coupled with a thermistor power sensor (also known as a thermistor mount) can accurately measure the SWR of a 50 MHz reference.
By utilizing a unique function that most modern power meters do not offer; the 1830A allows the user to change the value of the thermistor mounts terminating resistance. Utilizing this method for measuring source match works well because it presents the source with two
distinctly different values of which allows accurate measurement of the power absorbed
under two different conditions. This application note will explain how we make this SWRmeasurement with the 1830A and a thermistor mount.
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