Dielectric Resonators Antennas Potential Unleashed by 3D Printing Technology: A Practical Application in the IoT Framework

Electronics

Riccardo Colella¹  Francesco Paolo Chietera¹  Luca Catarinucci¹ 

[1] Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy;

关键词: DRA;    additive manufacturing;    3D-printed antennas;    wideband;    IoT;    5G;   

DOI  :  10.3390/electronics11010064

来源: DOAJ

【 摘 要 】

One of the most promising and exciting research fields of the last decade is that of 3D-printed antennas, as proven by the increasing number of related scientific papers. More specifically, the most common and cost-effective 3D printing technologies, which have become more and more widespread in recent years, are particularly suitable for the development of dielectric resonator antennas (DRAs), which are very interesting types of antennas exhibiting good gain, excellent efficiency, and potentially very small size. After a brief survey on how additive manufacturing (AM) can be used in 3D printing of antennas and how much the manufacturing process of DRAs can benefit from those technologies, a specific example, consisting of a wideband antenna operating at 2.4 GHz and 3.8 GHz, was deeply analyzed, realized, and tested. The obtained prototype exhibited compact size (60 × 60 × 16 mm³, considering the whole antenna) and a good agreement between measured and simulated S₁₁, with a fractional bandwidth of 46%. Simulated gain and efficiency were also quite good, with values of 5.45 dBi and 6.38 dBi for the gain and 91% and 90% for the efficiency, respectively, at 2.45 GHz and 3.6 GHz.

【 授权许可】

Unknown