I am trying get results from the hfss after design information an antenna and wanted to find if my impedance is matched or not.at 50om .so how can I do that....thanks in advance
goto results->solutiondata->click on Z0 for port impedence-> click on Z matrix for input impedence.
Please look on Z-parameter Z(1,1)) real and Imaginary. Real value must be near to 50 ohms and Imaginary to be 0 ohms. In fact, if matching is good then you will get good S11.
In HFSS, there is direct option for displaying Zin (R + jX) with frequency. If you want to exact data from smith chart, the took print out. from its center draw diff. radius. Measure the distance from the center the point xo (xo is the point where radial line and Zin curve intersect each other.) Measure the corresponding angle also. Then calculate R and X.
Go to results-> Modal solution data report -> rectangular plot -> Z-parameter -> Z11 (im, re). Real part is to around 50 and imaginary part should be around 0. Good impedance matching decrease the capacitance due to air gap microstrip line. hence the variation of imaginary part is decreased. It may also enhance the bandwidth but not all the time.
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