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substrate integraded wave guide what is the purpose of via hole? even without via hole i am getting same respoinse.any one give detail about this.
in my simulation if holes are vaccum then i am geeting some result. if the holes are filled with gold then i am not getting any response.what is the problem. how to set substrate interfaces to radiation boundaries in HFFS. can you explain pleaseflyhigh said:Hi
Metalized via holes are playing the role of lateral side walls of a ractangular waveguide. You must have an error in your simulation.
Usual mistake when using HFSS is failure to set substrate interfaces to radiation boundaries so that top and bottom walls are not connected by vias only but are in addition automatically connected together through default perfect electric boundary on lateral substrate walls.
hi did u got result afer filling via s with gold ?what is the mistake in my case do u have any idea?pabloec said:hello flyhihg, i am also simulating a surface integrated waveguide, i think im getting good results, but I got a little confused by what you said about setting interfaces to radiation boudaries,i got worried because i use an air box surrounding the structure and its boundary is set to radietion but i also use an perfect H symmetry plane in the middle of the guide.
Im i making that mistake you are saying?