Two-Dimensional Multi-Ring Dielectric Lens Antenna to Radiate Fan-Shaped Multi-Beams With Optimum Adjacent-Beam Overlapping Crossover by Genetic Algorithm

被引：14

作者：

Chou, Hsi-Tseng ^{[1
]}

Chang, Yi-Sheng ^{[2
]}

Huang, Hao-Ju ^{[2
,3
]}

Yan, Zhi-Da ^{[1
]}

Lertwiriyaprapa, Titipong ^{[4
]}

Torrungrueng, Danai ^{[4
]}

机构：

[1] Natl Taiwan Univ, Grad Inst Commun Engn, Taipei 10617, Taiwan

[2] Yuan Ze Univ, Dept Elect Engn, Taoyuan 32003, Taiwan

[3] Natl Chung Shan Inst Sci & Technol, Taoyuan 32546, Taiwan

[4] King Mongkuts Univ Technol North Bangkok, Fac Tech Educ, Dept Teacher Training Elect Engn, Res Ctr Innovat Digital & Electromagnet Technol, Bangkok 10800, Thailand

来源：

IEEE ACCESS | 2020年 / 8卷

关键词：

Genetic algorithm; Luneburg lens antenna; multi-beam radiation; pattern synthesis; FLAT-TOP RADIATION; LUNEBERG LENS; LUNEBURG; DESIGN; OPTIMIZATION; NETWORKS; PATTERN;

D O I：

10.1109/ACCESS.2020.2990223

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A two-dimensional (2-D) discrete dielectric lens antenna is designed to radiate fan-shaped multi-beam patterns for gain stability in beam switching. The target is to minimize adjacent-beam overlapping transition regions and provide sufficient and similar gains for all field angles when the antenna is employed in a mobile device. This design starts with a conventional 2-D Luneburg lens antenna, and distorts its dielectric permittivity and the sizes of discrete dielectric rings to defocus the pencil beam patterns into shaped ones with a relatively flat pattern for uniform field distribution. The design is realistically implemented at 38 GHz with both simulation and measurement results shown to validate the concept. Successful validation of feasibility in beam synthesis is achieved. Fabrication discrepancy to result in slight radiation degradation is also discussed.

引用

页码：79124 / 79133

页数：10

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