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Hello dear friends, i have two microstrip lines. One is straight with 18[mm] length, and the other one is constructed of many curved parts to be "bent" (second and fourth image attached). So, in order to achieve very small phase difference between these two lines i tuned the length of TLIN37 and...
Hi, i would like to design microstrip lines that have the same physical length but i also want them to reach a common vertical limit so i have to bent some of these lines. Does anyone know how to calculate the length of a bent line? For instance if i construct a line consisting of parts using...
I actually want to terminate some ports with a matched loads but i do not know how to do this in HFSS. So i thought that when a waveport is excited all other waveports behave like matched loads. So, i wanted a number of ports to behave as matched loadswithout exciting the structure at all so i...
Ok thanks. Do you know if there is any way that i can only use 6 of my 10 ports? In cst i know this is possible but regarding HFSS i searched the web but didn't find something useful about how to do this. The reason is that i would like to treat these 4 ports as matched loads without exciting...
Ok got it, so what difference does it make for my results if i leave it as it is by default (only port 1 is excited with 1W of power amplitude) and if i specify amplitudes for the other ports as well?
Hi all,
i am new to HFSS software and i'm trying to simulate a ten port network. After i simulated it first time, i received all the s-parameters and i checked at fields->edit sources that only port 1 had excitation power amplitude of 1W and all the others had zero. From what i understood when i...
Hello, when a sat file from cst is imported to hfss does hfss recognize all the different materials used in the structure in cst?(i.e two or more materials with different dielectric constant). Also when some parts are boolean connected(added inserted etc) in cst are they still connected in the...
Screenshots of S11 and S22 from 0-33GHz and Smith charts of S11 and S22 at these frequencies are also attached (first two screenshots)
The simulation was performed for the band 27-33 GHz. The central frequency is 30GHz. The line has characteristic impedance 12.2 Ohms and load impedance also...
The screenshot of the current density of the line is attached, but it doesn't seem physicaly correct because from what i'm seeing there, is that there are some extremes at the edges and at the rest of the line the density is much lower, looks like a standing wave at the two edges. Also very weak...
The "," decimal indicator is located at the values of Z0 and epsilon effective wich are produced by the impedance calculator of CST. As for the input values of line width, substrate height and metal thickness i used "." decimal indicator so the produced values are fine.
Sorry at the beginning...
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