calculate width of material
j (Z0e) (Z0o)
0 82.9367 37.6092
1 61.1600 42.3705
2 58.1839 43.8661
The thickness is 0.635 mm
relative dielectric constant is 10.2
Is there any e-book or any web-page have the information about this?
THX
you can calculate the width and space with HFSS. use the driven modal. 2 mode for a wave port.
I had the same problem recently. I had some filters to design, had an old excel file that gave the correct Zoe and Zoo's, but when I got them I did not know what to do with them! None of my software takes even/odd mode impedances anymore!
There used to be a program called TLine that did this calculaton (impedance to physical dimensions). You might look around for some shareware. This site looks promising, for instance:
http://atlc.sourceforge.net/tutorial.html
If you have access to ADS then LineCalc can do all you need. You will need perhaps to be a bit more specific about the material properties than just H and Er. These number therefore only approximate.
j___(Z0e)____(Z0o)____W_______S____
0 - 82.9367 - 37.6092 - 0.35 mm - 0.16 mm
1 - 61.1600 - 42.3705 - 0.54 mm - 0.52 mm
2 - 58.1839 - 43.8661 - 0.56 mm - 0.69 mm
You might find LINC2 software useful. I believe it is on the order of S500 or so.
How can we set the freq for this calculation.I found that it doesn't affect much !
You can use AWR to simulate it. The freq is determined by length, the length should be lamda/4, a little shorter than it.
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