cross bow tie dipole antenna design

hi
if any body has worked on cross bow tie then plz share some papers on it with me,i have not find even a single paper on it,

hello i think cross bow tie dipole means the PCB (Prited Circuit Board) Dipole and here is a picture of it ,, and the picture on the right looks like a tie for me :D
../imgqa/eboard/Antenna/rf-mvha2twpmp4.gif

and you will find more on this if you searched more about "PCB Dipoles"

hope i helped
regards
Rio

hi.
rio.
thanks for your reply but what i want to do is crossed version of bow tie,i have attach its pic with this post plz check it if you can help me in this regard i will be vey thankful.actually i have not found any paper regarding it and my teacher gave me project to on it and on simulating it i am getting negative of real part of impedance,plz if possible help me