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How to do TRL calibration for the free space measurement?

Question asked by vsan on Nov 15, 2011
Latest reply on Nov 22, 2011 by vsan
Hi,

I'm a newbie and I have to do the free-space measurement in Ka band. The measurement that I set up consists of 2 horn antennas and 2 lens. However, I've never done TRL calibration before (as far as I know, I need to do TRL calibration for the free space measurement). Could someone help me explain how should I do, please? Do I need TRL cal kit?

I read some paper, they said they used metal plate as "Reflect", the absorber as "Match" and "Thru" for TRM calibration instead of TRL. If I do as this, do I still need TRL cal kit?

Thank you very much for your help  

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