Improving the Field-of-View of Beam-Steerable Waveguide Arrays by Wilkinson-Like Power Dividers Based on Radiating Magic-Ts

This paper presents the design and analysis of a Radiating Magic-T Power Divider (RMT-PD) for phased-array applications at 30 GHz. The RMT-PD emulates a Wilkinson power divider in waveguide technology, simultaneously ensuring effective power division and isolation between output ports. A key feature of the design is its ability to circumvent the re-radiation of unwanted backward waves from array mismatch, which typically leads to secondary lobes and reduced efficiency. The RMTPD has been tested with a resonant slot array, demonstrating improved beam steering performance, even at wider angles. While the current implementation focuses on a slot array, the design broadly applies to various waveguide-based arrays.