waveguide to microstrip transition
时间：03-27
整理：3721RD
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hi,
i am trying to design a simple waveguide to microstrip probe transition using HFSS. i have a WR-22 waveguide and the substrate for the transition is Duroid-6002. When I draw the geometry and put a probe i get about -120dB insertion loss. The design parameters (width of the probe,air gap etc. ) are arbitrary, so i dont expect very small insertion loss, however, -120dB is way too high?
I am a beginner at the usage of HFSS, therefore, I think that probably there is something wrong with the exications, boundaries etc. Could somebody check whether there is an error in the schematic. I am attaching the HFSS file. Thanks in advance..
i am trying to design a simple waveguide to microstrip probe transition using HFSS. i have a WR-22 waveguide and the substrate for the transition is Duroid-6002. When I draw the geometry and put a probe i get about -120dB insertion loss. The design parameters (width of the probe,air gap etc. ) are arbitrary, so i dont expect very small insertion loss, however, -120dB is way too high?
I am a beginner at the usage of HFSS, therefore, I think that probably there is something wrong with the exications, boundaries etc. Could somebody check whether there is an error in the schematic. I am attaching the HFSS file. Thanks in advance..
help will be very appreciated guys
Hi!
You should be more careful or learn more about HFSS! :)
The surface of the cavity in the WG is perfect conductor! Use the HFSS->Boundary display in the menu to see it.
Fill the cavity by vacuum and do the microstrip line longer!