Chen, Z; Song, W; Wu, G; Liu, H; Loh, T H; Yu, J; Chen, X; Chan, C H (2020) Circular Polarized 3-D-Printed Dielectric Loaded Antenna Using Inset Waveguide-to-Dielectric Transition for 5G Millimeter-Wave Application. IEEE Antennas and Wireless Propagation Letters, 19 (11). pp. 1929-1932. ISSN 1536-1225

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Abstract

This letter presents a millimeter-wave circular-polarized dielectric loaded antenna (DLA) using an inset waveguide-to-dielectric transition. It is designed from the perspective of low-cost, small-volume, high-integration and light-weight to provide a cost-effective solution for millimeter-wave communications. A low-profile transition (0.17¿) is realized to have low-loss high-integration between air-filled waveguide and dielectric-filled waveguide. The proposed DLA could be excited with high-order modes, resulting in narrower beam width and lower cross-polarization. The DLA along with the transition has been fabricated by the 3D printing technique as a seamless integration. It has a light weight of 4.17 g, which is less than the weight of a standard A4 size paper. The simulated results show that the designed DLA can achieve a 28.6% impedance and AR overlapped bandwidth and a peak gain of 12.0 dBic. The factors with strong influences on the measured results are analyzed. Comparing with the air-filled metallic waveguide antenna (AFMWA) with similar performance, the 3D printed DLA shows 43% reduction in volume and 90% reduction in weight, which is suitable for 5G/6G enabling antenna systems.

Item Type:	Article
Keywords:	3D printing, circular polarization, dielectric Loaded Antenna, millimeter-wave, transition
Subjects:	Electromagnetics > Wireless Communications
Divisions:	Electromagnetic & Electrochemical Technologies
Identification number/DOI:	10.1109/LAWP.2020.3006867
Last Modified:	07 May 2021 14:46
URI:	https://eprintspublications.npl.co.uk/id/eprint/9136