Directional CPW-fed Microstrip patch antenna for 2.4GHz

[nizami237]

Hi,
I need to design a Directional CPW-fed Microstrip patch antenna for 2.4GHz that has minimum back lobes and most of the radiation in the upper hemisphere. I have tried many things but CPW feed is giving omni-dirctional radiation pattern. If someone can help me in this matter? Thanks

 

[Higgler]

You need to add a ground plane to reduce the backlobes.
kch