Unlock the Potentials of Large-Element-Spacing Arrays: A Meta-Lens Solution for Grating-Lobe Suppression and Gain Enhancement
Large-element-spacing (LES) antenna arrays present an attractive proposition with their cost-effectiveness and simplified structures. However, they often encounter the challenge of high-level grating lobes. This paper proposes a novel meta-lens methodology to effectively address the grating lobe iss...
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| Format: | Article |
| Language: | English |
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Chinese Institute of Electronics
2024-12-01
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| Series: | Electromagnetic Science |
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| Online Access: | https://www.emscience.org/en/article/doi/10.23919/emsci.2024.0030 |
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| author | Zhengmei Wang Shan Lin Yuehe Ge Zhizhang (David) Chen Jingjing Zhao Jiahong Chen Ziheng Zhou Trevor S. Bird |
| author_facet | Zhengmei Wang Shan Lin Yuehe Ge Zhizhang (David) Chen Jingjing Zhao Jiahong Chen Ziheng Zhou Trevor S. Bird |
| author_sort | Zhengmei Wang |
| collection | DOAJ |
| description | Large-element-spacing (LES) antenna arrays present an attractive proposition with their cost-effectiveness and simplified structures. However, they often encounter the challenge of high-level grating lobes. This paper proposes a novel meta-lens methodology to effectively address the grating lobe issue in fixed-beam LES arrays. The proposed approach involves strategically positioning a meta-lens above the LES arrays at a suitable vertical distance. This setup enables precise manipulation and compensation of the near-field phase, resulting in the suppression or elimination of grating lobes without introducing additional design complexity. Comprehensive theoretical analyses, meticulous design calculations employing efficient numerical methods, rigorous field simulations, and practical experiments are conducted. The results demonstrate that our meta-lens solution achieves significant grating-lobe suppressions and substantial gain enhancements with only a marginal increase in system profile or volume. The proposed meta-lens approach is versatile and applicable to various LES antenna arrays, including sparse/thinned arrays, regardless of their size, element spacing, and configuration (uniform or non-uniform, periodic or aperiodic). |
| format | Article |
| id | doaj-art-ea403ad77b52468fb2bf71f6b3e7f84a |
| institution | Kabale University |
| issn | 2836-9440 2836-8282 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Chinese Institute of Electronics |
| record_format | Article |
| series | Electromagnetic Science |
| spelling | doaj-art-ea403ad77b52468fb2bf71f6b3e7f84a2025-01-03T06:26:17ZengChinese Institute of ElectronicsElectromagnetic Science2836-94402836-82822024-12-012411510.23919/emsci.2024.0030EMS20240030Unlock the Potentials of Large-Element-Spacing Arrays: A Meta-Lens Solution for Grating-Lobe Suppression and Gain EnhancementZhengmei Wang0Shan Lin1Yuehe Ge2Zhizhang (David) Chen3Jingjing Zhao4Jiahong Chen5Ziheng Zhou6Trevor S. Bird7College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, ChinaMotorola Mobile Internet Techbology (Xiamen) Co., Ltd, Xiamen 361006, ChinaCollege of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, ChinaCollege of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, ChinaCollege of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, ChinaCollege of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, ChinaCollege of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, ChinaUniversity of Technology Sydney, Ultimo NSW 2007, AustraliaLarge-element-spacing (LES) antenna arrays present an attractive proposition with their cost-effectiveness and simplified structures. However, they often encounter the challenge of high-level grating lobes. This paper proposes a novel meta-lens methodology to effectively address the grating lobe issue in fixed-beam LES arrays. The proposed approach involves strategically positioning a meta-lens above the LES arrays at a suitable vertical distance. This setup enables precise manipulation and compensation of the near-field phase, resulting in the suppression or elimination of grating lobes without introducing additional design complexity. Comprehensive theoretical analyses, meticulous design calculations employing efficient numerical methods, rigorous field simulations, and practical experiments are conducted. The results demonstrate that our meta-lens solution achieves significant grating-lobe suppressions and substantial gain enhancements with only a marginal increase in system profile or volume. The proposed meta-lens approach is versatile and applicable to various LES antenna arrays, including sparse/thinned arrays, regardless of their size, element spacing, and configuration (uniform or non-uniform, periodic or aperiodic).https://www.emscience.org/en/article/doi/10.23919/emsci.2024.0030gain enhancementgrating-lobe suppressionlarge-element-spacing antenna arraymeta-lensmetasurfacesparse arraythinned array |
| spellingShingle | Zhengmei Wang Shan Lin Yuehe Ge Zhizhang (David) Chen Jingjing Zhao Jiahong Chen Ziheng Zhou Trevor S. Bird Unlock the Potentials of Large-Element-Spacing Arrays: A Meta-Lens Solution for Grating-Lobe Suppression and Gain Enhancement Electromagnetic Science gain enhancement grating-lobe suppression large-element-spacing antenna array meta-lens metasurface sparse array thinned array |
| title | Unlock the Potentials of Large-Element-Spacing Arrays: A Meta-Lens Solution for Grating-Lobe Suppression and Gain Enhancement |
| title_full | Unlock the Potentials of Large-Element-Spacing Arrays: A Meta-Lens Solution for Grating-Lobe Suppression and Gain Enhancement |
| title_fullStr | Unlock the Potentials of Large-Element-Spacing Arrays: A Meta-Lens Solution for Grating-Lobe Suppression and Gain Enhancement |
| title_full_unstemmed | Unlock the Potentials of Large-Element-Spacing Arrays: A Meta-Lens Solution for Grating-Lobe Suppression and Gain Enhancement |
| title_short | Unlock the Potentials of Large-Element-Spacing Arrays: A Meta-Lens Solution for Grating-Lobe Suppression and Gain Enhancement |
| title_sort | unlock the potentials of large element spacing arrays a meta lens solution for grating lobe suppression and gain enhancement |
| topic | gain enhancement grating-lobe suppression large-element-spacing antenna array meta-lens metasurface sparse array thinned array |
| url | https://www.emscience.org/en/article/doi/10.23919/emsci.2024.0030 |
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