Looking for info about waveguide OMT for ku band

Hi to all,
I need to design a very compact waveguide OMT for ku band application.
Has anyone some information about this? I have been searching for information but I have found no concrete information.

The common port will be circular and the outputs will be WR75. The OMT dimensions are very critical parameters.

Thanks

Continental Microwave and Tool Co. may be able to help.

Azulykit
can you give more details?
I am also doing the Ku band OMT project, while my focus is the dual band Tx/Rx OMT