urgent!!!calibration with VNA when measuring dipole
时间：04-10
整理：3721RD
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hi, i have a problem on calibratin of VNA.
i got an idea on measuring the s-parameters of dipole connecting each arm to each of two single-ended prots of VNA, then converting them to mixed-mode s-parameters. in such situation, the balun is not necessary. but i am confused how to calibrate the VNA. i prefer to use TRL calibration. but how could i use it?
urgent. thank you very much for any help!
i got an idea on measuring the s-parameters of dipole connecting each arm to each of two single-ended prots of VNA, then converting them to mixed-mode s-parameters. in such situation, the balun is not necessary. but i am confused how to calibrate the VNA. i prefer to use TRL calibration. but how could i use it?
urgent. thank you very much for any help!
You can just connect a small 50 ohm cable at the centre, connect outer to one arm and inner to another arm and check the s-parameters.you dont need anything fancy.then you get the correct s11.only problem without balun is that patterns are distorted-not s parameters
You are thinking of measuring the dipole as 2-port device? There is no good reference plane for your two ports. No calibration method would achieve what you want.