Passive Networks for C-Band Multi-Carrier Wireless Backhaul Systems

This paper presents an overview of the passive components involved in multi-carrier single-antenna wireless backhauling systems, dedicated to enhancing data throughput for 5G deployment across the C-band. Three passive devices are the core building blocks for the presented configurations, all sharing the metallic hollow waveguide technology. The description and the design-to-manufacturing workflow is reported for a balanced coupler, a circulator, and an orthomode transducer. The required specifications together with measured data are reported for all the aforementioned devices.