Design of the Miniaturized and Thin Sliced-Type Beam Switching-Controlled Horn Antenna for D-Band

This paper proposes a design of a multilayer controlled beam horn antenna for the D-band. The multilayer design can achieve easy to control, low cost, and compact structure. The designed structure achieves the effect of a conventional horn antenna by stacking multiple layers and realizes the effect of beam switching by modifying the multi-layer plate structure. The widest bandwidth can be obtained when stacking 4 layers of boards, covering 24.7% (110-141GHz) of the bandwidth with a simulation gain of approximately 13.5dBi. By replacing the third plate structure, beam switching of ±30 degrees can be achieved, and the gain after beam switching can also reach 11.5 dBi.