Combined rectangular and circulair patch antenna array

Hello everyone,
i work with corporate feed nework in antenna patch array and i have a question: is it possible to use a rectangular and circular patch antenna in the same antenna array as showen in figure bellow or is not possible, hope get an answer guys and thnak you.

They both support roughly the same resonant mode, so sure, as long as you design them to operate at the same frequency -- why not?

I can't really think of any advantage to doing so, however (if excited as shown, they will both be linearly polarized).

In theory yes, in practical, not so much. So many variables to optimize at the same time, and uncertainity from phase errors is another bonus.

Both, directivity and bandwidth, of a circular patch antenna are lower than of a rectangular patch antenna.
So, doesn't make sense to do this antenna combination.