Millimetre Wave Transmit / Receive Subsystem for Broadband Mesh Networks.

A completely new approach to broadband wireless access has been developed by Radiant Networks Plc. This radical approach relies on remotely commandable nodes designed and built using steerable antennas. Each node contains 4 antennas connecting to a common TRM (Transmit and Receive Module) via a low loss waveguide filter. The initial design is based on two antennas sharing a common TRM. All sub assemblies are designed for low cost high volume production without any compromise on the required performance. This paper describes the topology, performance and the technologies used in design and development of the mm-wave section of the node. The main building blocks are illustrated in figure.1.