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Dear all,
I've previously started (and closed) a thread in this forum (06-04-11) about the characteristic impedance calculation of rectangular waveguide in HFSS.
The conclusion at that time was that the results given by HFSS were not in accordance with the classical electromagnetic books (Pozar, Harrington, Colin, etc.). (CST gave the same results than the analytic formula.)
You will find attached to this post a HFSS project which proves that HFSS can give the same result than the analytic formula for the fundamental TE10 mode only when the ratio between the rectangular waveguide cross section lengths (a/b) is exactly 2 (with the Zpv line integration port setup) !
I personally have no clue why ; and the HFSS support doesn't help neither.
Best regards,
I've previously started (and closed) a thread in this forum (06-04-11) about the characteristic impedance calculation of rectangular waveguide in HFSS.
The conclusion at that time was that the results given by HFSS were not in accordance with the classical electromagnetic books (Pozar, Harrington, Colin, etc.). (CST gave the same results than the analytic formula.)
You will find attached to this post a HFSS project which proves that HFSS can give the same result than the analytic formula for the fundamental TE10 mode only when the ratio between the rectangular waveguide cross section lengths (a/b) is exactly 2 (with the Zpv line integration port setup) !
I personally have no clue why ; and the HFSS support doesn't help neither.
Best regards,