Problem with Radiation Pattern

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am.jay.kay

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Hi all!

I have designed a square patch antenna with two orthogonal feeds.
The 2D radiation pattern is not directed to 0 degrees. It is tilted to certain angle.
Can anyone suggest any possible solution to make it to 0 degree?

Thanks
 

An option could be to make the structure as symmetrical as possible, using two extra zero-degrees splitters and feeding the square patch from all four sides.
Another option is to tune the edge currents of the patch changing the shape/pattern of margins of the rectangle.
 

can you please elaborate your answer? Because i have tries lots of things and I was not able to get the desired result.
 

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