bowtie in hfss problem

hi all,

i built the bowtie antenna in the paper but it does not work, any one can help me in that.

I had a look at your design. Found two problems:

1. Your lumped port was too big. Look at the picture for a proper lumped port.

2. Your frequency sweep was improperly set for the radiation boundary, since it was 7.5mm from the structure -> solution frequency from 10GHz and above, so for the 7.5GHz the radiation boundary was too close

Either enlarge the radiation boundary (airbox), or change the sweep to 10-15GHz.

Hope this helps...