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port details of vivaldi antenna

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remyaratheesan07

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hi
We are designing single element vivaldi using CST.
We are getting problem with port . The error message is " waveguide to port 1 is too short, The waveguide must be homogeneous with three mesh planes" . please reply me how to solve that error
Mail me to divyaram83@yahoo.co.in
 

hi
that is an unusual problem in simulation of antenna and that occur in CST
i can guess u antenna has and taper feed line and the this problem came from that for solve this problem u should made it straight for 3 mesh of CST simulation
 

Hi,
I met this problem before.
It may happen when the micrsostrip line doesn't properly touch the edge of the substrate. That is to say, the edge of the ms line and the edge of the substrate do not meet.
Sorry for my poor English~
 

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