matched termination
i'm trying to simulate a coaxial line to rectangular waveguide transition(adapter) in HFSS. But for the simulation i need a matched termination at one side of the adapter(waveguide) and other mouth is obviously shorted. now, i don't know how to define a matched termination in HFSS. should i use PML or there is some other method.Again i don't know how to use a PML bu\oundary condition, in case.
so, if anybody knows anything on this matter kindly reply on this forum.
with regards
abhi
Hi, I′d like to know more about your problem. I suppose that you want to attach a coax cable to a rectangular wave guide, so my question is...Does your wave guide have a 50 Ohms termination in the side where the coax cable must be attached?. Does your coax cable will be the TE or TM excitation for the wave guide?. If you describe your problem better may be some of us could help you... Grettings
If I got your problem, the solution is simple. Make the excitation of a waveport and terminate it as Z ohms.
=> The excitation you must chose a terminal or integral line (it depends of your solution type) from the outer conductor to the inner conductor.
=> The termination must be done by HFSS>>Fields>>Sources (I′m not sure of the names but that′s the idea...)
I hope it helps you!
Thadeu
For the transition between coaxial line and waveguide, the coaxial line should be about quarter-wavelength away from the short end of waveguide. In HFSS model, two waveports should be set in the end of coaxial line and the open end of waveguide.
hi burton, i need this concept too, so could you plz propose me some documents concern your comments, thanks !