devices and methods for cooling microwave antennae and microwave hub construction are disclosed herein . the cooling system and hub can be utilized with a variety of microwave antenna types . a microwave hub is utilized to provide cooling fluids to a microwave antenna . the hub is constructed using no glue or adhesive for holding the different parts of the chambers in place . o - rings provide an increased reliability and consistency for fluid - tight seals in the hub . the various parts of the hub are form fitted and work together with the o - rings .