How to design a Tx/Rx orthogonal polarized antenna

Hi, everyone. Right now I am trying to come up with an idea about designing a orthogonal polarized antenna that support Tx RHCP and Rx LHCP, while those Tx and Rx bands are close-spacing.

But the only information I have right now is for the refectory antenna with complex horn design. I am wondering whether there are any good candidate such as patch antenna for this function?

Thanks.