WirelessHART design gateway

Hi to everybody!

I am a student with few knowledge on this theme. I want to create a gateway between two different IoT technology acces point. In order to start, i would like to get help related with what type of chip i would have to buy if i need to create a new system with all components designed on KiCAD or similar.

The chip that i have to get is with WirelessHART technology. So i would start to design a new product with this technology.

Very thanks to all,