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On-line Access: 2023-07-03

Received: 2022-11-03

Revision Accepted: 2023-07-03

Crosschecked: 2023-03-16

Cited: 0

Clicked: 829

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Xiuping Li

https://orcid.org/0000-0003-4350-9651

Liangjie QIU

https://orcid.org/0009-0004-2820-4221

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Frontiers of Information Technology & Electronic Engineering  2023 Vol.24 No.6 P.927-934

http://doi.org/10.1631/FITEE.2200539


Wideband circular-polarized transmitarray for generating a high-purity vortex beam


Author(s):  Liangjie QIU, Xiuping LI, Zihang QI, Wenyu ZHAO, Yuhan HUANG

Affiliation(s):  State Key Laboratory of Information Photonics and Optical Communications, Beijing 100876, China; more

Corresponding email(s):   xpli@bupt.edu.cn

Key Words: 


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Liangjie QIU, Xiuping LI, Zihang QI, Wenyu ZHAO, Yuhan HUANG. Wideband circular-polarized transmitarray for generating a high-purity vortex beam[J]. Frontiers of Information Technology & Electronic Engineering, 2023, 24(6): 927-934.

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author="Liangjie QIU, Xiuping LI, Zihang QI, Wenyu ZHAO, Yuhan HUANG",
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volume="24",
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pages="927-934",
year="2023",
publisher="Zhejiang University Press & Springer",
doi="10.1631/FITEE.2200539"
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A1 - Yuhan HUANG
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Abstract: 
In this correspondence, a wideband circular-polarized (CP) transmitarray (TA) in the Ka-band is presented for generating a high-purity vortex beam. The proposed element is composed of two identical combinations separated by an air layer. The subwavelength structure and double-resonance characteristics ensure the stable phase shift of the element within the 1-dB transmission bandwidth of 28.4%. A square aperture TA fed by a horn antenna is fabricated and measured. Owing to the honeycomb arrangement of elements, the mode purity of l​​=​​−1 is >0.93 in a wide band from 28.5 to 38 GHz. The measured peak gain is 22.3 dBic, and the 3-dB axial ratio bandwidth is 27.6%. The performance of the proposed antenna demonstrates its potential for high-capacity wireless communication and high-quality radar imaging.

用以产生高纯度涡旋波束的宽带圆极化透射阵

邱靓婕1,2,3,4,李秀萍1,2,3,4,齐紫航1,2,3,4,赵文禹1,2,3,4,黄雨菡5
1信息光子学与光通信国家重点实验室,中国北京市,100876
2泛网无线通信教育部重点实验室,中国北京市,100876
3安全生产智能监控北京市重点实验室,中国北京市,100876
4北京邮电大学电子工程学院,中国北京市,100876
5北京空间飞行器总体设计部,中国北京市,100094
摘要:本文提出一款在Ka波段产生高纯度涡旋波束的宽带圆极化透射阵。为简化设计,所提出的透射单元由两个相同的组合构成,并用空气层将其隔开。亚波长结构以及双谐振特性确保了透射单元在28.4%的1-dB透射带宽内具有稳定的相移能力。基于此,加工测试了一款由喇叭天线馈电的方形口径透射阵。得益于蜂窝状布阵方式,所设计的透射阵可在28.5 GHz到38 GHz的宽带范围中辐射l=−1且模态纯度高于0.93的涡旋波束。测试的峰值增益为22.3 dBic,3-dB轴比带宽为27.6%。测试结果表明,本文提出的透射阵有潜力应用于高容量无线通信和高质量雷达成像方面。

关键词:轨道角动量;涡旋波束;透射阵;宽带;高纯度

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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