Single-ridge waveguide T-junctions for compact multilayer beam forming networks

In this work, an H-plane and an E-plane single-ridge waveguide T-junction exhibiting compact size and broadband performance are presented. Thanks to these features the proposed devices turn out to be key components for the implementation of high-performance multilayer antenna beam-forming networks. Effectiveness and suitability of such T-junctions are demonstrated through the design of a broadband array antenna feeding network. The presented components operate at Ku band, nevertheless the adopted architectures are fully scalable to other frequency band of interest.