This paper designs a multi-beam antenna based on a cylindrical Lomber lens to address the shortcomings of traditional millimeter-wave high-gain antennas. The antenna uses a novel feeding scheme based on GCPW-SIW and achieves wideband, high gain and pattern stability by optimizing the electromagnetic coupling characteristics of the Vivaldi antenna. In terms of processing, based on the equivalent dielectric theory and microhole array technology, a composite dielectric structure with gradient variation of dielectric constant (ε_r=2.5-9.8) was constructed. Experimental verification shows that the scheme is engineering feasible and provides an efficient solution for phased array systems with wide frequency bands and large scanning ranges, which is of practical significance for 5G communication scenarios.

Jianguo Jia, Fangdi Mao, Jiangbo Chen, Yongqiang Sun, Chenhao Zhao, Feiyang Zhao. Research on Broadband High-gain Multi-beam Lens Antenna for 5G. International Journal of Multimedia Computing (2025), Vol. 6, Issue 1: 135-143. 

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