3D-Printed Dual Dielectric Resonator Antennas for Localization in UWB Anchor Nodes

This paper investigates the performance of 3D-printed dielectric resonator antennas on small anchor nodes for angle-of-arrival indoor positioning systems. A small aperture-coupled DRA, supporting channels 5 to 11 (6.2 – 8.5 GHz), is proposed for use in a 1x2 array and evaluated when mounted on a 77 × 52 mm anchor node PCB. This study assesses the performance of small DRA antennas, complying with IEEE 802.15.4z-2020. The proposed antenna prototype achieves an average gain of 5 dBi across the bands of interest. The results validate the introduction of 3D-printed DRA antennas in AoA applications based on UWB.