Mechanically Reconfigurable Folded Reflectarray Antenna for Variable Near-Field Focusing

Xiangming Wu; Zhenfei Li; Zhengping Zhang; Xiong Wang; Liming Si; Weiren Zhu

doi:10.1109/TAP.2023.3323092

Mechanically Reconfigurable Folded Reflectarray Antenna for Variable Near-Field Focusing

Xiangming Wu, Zhenfei Li, Zhengping Zhang, Xiong Wang, Liming Si, Weiren Zhu^*

^*此作品的通讯作者

集成电路与电子学院

科研成果: 期刊稿件 › 文章 › 同行评审

6 引用（Scopus）

摘要

A novel variable-focus near-field-focused (NFF) antenna implemented by mechanically reconfigurable folded reflectarray is proposed in this communication. The working principle is inspired by the concepts of folded reflectarray antenna (FRA) and Alvarez lens. The proposed antenna works at 15 GHz and consists of two parts. One part is a passive metasurface (MS), and the other part is an integrated part of array antenna, feed network, and another MS. By adjusting the relative position between the two parts, a variable focal length from 86 to 220 mm can be achieved. The design process is analyzed in detail and verified by simulation and experiment. The method proposed in this communication has the advantages of simple design and low cost, offering new possibilities for further NFF antenna systems.

源语言	英语
页（从-至）	10038-10043
页数	6
期刊	IEEE Transactions on Antennas and Propagation
卷	71
期	12
DOI	https://doi.org/10.1109/TAP.2023.3323092
出版状态	已出版 - 1 12月 2023

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title = "Mechanically Reconfigurable Folded Reflectarray Antenna for Variable Near-Field Focusing",

abstract = "A novel variable-focus near-field-focused (NFF) antenna implemented by mechanically reconfigurable folded reflectarray is proposed in this communication. The working principle is inspired by the concepts of folded reflectarray antenna (FRA) and Alvarez lens. The proposed antenna works at 15 GHz and consists of two parts. One part is a passive metasurface (MS), and the other part is an integrated part of array antenna, feed network, and another MS. By adjusting the relative position between the two parts, a variable focal length from 86 to 220 mm can be achieved. The design process is analyzed in detail and verified by simulation and experiment. The method proposed in this communication has the advantages of simple design and low cost, offering new possibilities for further NFF antenna systems.",

keywords = "Alvarez lens, folded reflectarray antenna (FRA), metasurface (MS), near-field-focused (NFF) antenna, variable focal point",

author = "Xiangming Wu and Zhenfei Li and Zhengping Zhang and Xiong Wang and Liming Si and Weiren Zhu",

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AU - Wu, Xiangming

AU - Li, Zhenfei

AU - Zhang, Zhengping

AU - Wang, Xiong

AU - Si, Liming

AU - Zhu, Weiren

PY - 2023/12/1

Y1 - 2023/12/1

N2 - A novel variable-focus near-field-focused (NFF) antenna implemented by mechanically reconfigurable folded reflectarray is proposed in this communication. The working principle is inspired by the concepts of folded reflectarray antenna (FRA) and Alvarez lens. The proposed antenna works at 15 GHz and consists of two parts. One part is a passive metasurface (MS), and the other part is an integrated part of array antenna, feed network, and another MS. By adjusting the relative position between the two parts, a variable focal length from 86 to 220 mm can be achieved. The design process is analyzed in detail and verified by simulation and experiment. The method proposed in this communication has the advantages of simple design and low cost, offering new possibilities for further NFF antenna systems.

AB - A novel variable-focus near-field-focused (NFF) antenna implemented by mechanically reconfigurable folded reflectarray is proposed in this communication. The working principle is inspired by the concepts of folded reflectarray antenna (FRA) and Alvarez lens. The proposed antenna works at 15 GHz and consists of two parts. One part is a passive metasurface (MS), and the other part is an integrated part of array antenna, feed network, and another MS. By adjusting the relative position between the two parts, a variable focal length from 86 to 220 mm can be achieved. The design process is analyzed in detail and verified by simulation and experiment. The method proposed in this communication has the advantages of simple design and low cost, offering new possibilities for further NFF antenna systems.

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Mechanically Reconfigurable Folded Reflectarray Antenna for Variable Near-Field Focusing

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