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Mechanically Reconfigurable Phase Shifter for Switched-Beam Applications in mm-Waves

This paper presents the development of a 1x8 mechanically reconfigurable phase shifter for 5G New Radio (NR) switched-beam applications. A waveguide-based 1x4 power splitter is proposed to feed four semi-circular-shaped waveguides with 8 output ports. The angular position for coupling the power splitter and the circular-shaped waveguides (γ) leads to the reconfigurable phase shifting. The proposed structure is capable to provide a phase difference between two consecutive output ports approximately fixed as Δφ for every angular coupling position and a linearly and continuously variation of Δφ from 0° to 180° by properly managing the circular-shaped waveguide.