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Recent content by hippo

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    Please help! How to do the self-calibration technique for the free-space measurement?

    Thank you very much for both of you, Drkirby and E Kafeman. Yes, E Kafeman I'm quite new in this field so I have many things to learn...and thank you again for your explanation.
  2. H

    Please help! How to do the self-calibration technique for the free-space measurement?

    I'm really sorry about what I wrote. To clarify my question: I have to set up measurement using 2 horn antennas and 2 lens, so I can put my sample between and see what is the reflection and transmission. However, i don't know how to do the calibration in this measurement. Thank you very much
  3. H

    Please help! How to do the self-calibration technique for the free-space measurement?

    Hi I'm a newbie. I need to do the free-space measurement but I don't know how to do the self-calibration. I know that I need to do TRL or TRM calibration with some absorber and reflective plate. However, I'm confused how to do that. Since normally I will go to "Calibration" menu in network...
  4. H

    Please help! How to do the measurement for FSS? (I want to measure S11 and S21)

    How to do the measurement for FSS? (I want to measure S11 and S21) I have a sample of FSS and I want to measure reflection and transmission in Ka band. I heard that I can use two Ka band horn antennas with VNA. However, I don't know much about the measurement ,for example, the distance between...
  5. H

    How much distance for Floquet port in HFSS?

    Hi! Can I ask you how do you know how much is the attenuation for higher order mode m=0, n=1? Thank you very much
  6. H

    How to find phase of S parameter for fss in HFSS...thank you

    Hi... I did fss in HFSS ver.12. My steps in HFSS are as follow 1) Draw a unit cell 2) Draw a air box 3) Assign PML to top and bottom face (and add fss reference on top face) 4) add master and slave boundary 5) add excitation: incident wave which is plane wave After I run, I plotted for...

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