I have acquired high frequency current probes up to 5 GHZ. The current probes have a 50 ohm SMA-type output. The probe has a hole through its center where a conducting wire will be placed for measurement. I also have a signal generator up to 20 GHZthat I'd like to use for test. However i am not sure what the best test setup is. I was thinking to just create a simple series resistor circuit on a breadboard with an AC input. Am i completely on the wtong track ? what is the best way to test the functionality/performance of the probes?
Just for an idea, the probes I have are similar to the following:
http://www.vosssci.com/products/sensors/cp450/cp450probe.html
Best Answer
Regardless of the circuitry you use, the important factor is whether you can provide calibrated signals to the probe. For example, if you can provide a range of accurate current signals, over a range of accurate frequencies, then you know what you are providing as input. Then, you will be able to determine the probe's characteristics, over the range being tested.