Subregional parabolic conformal multi-order OAM-generating transmitarray with a novel C-I-shaped grating cell

被引：0

作者：

Bo, Yong ^{[1
,2
]}

Gao, Zhenghao ^{[1
,2
]}

Wang, Chao ^{[1
,2
]}

Yu, Hang ^{[1
,2
]}

Xu, Guanghui ^{[1
,2
]}

Wang, Qinghua ^{[1
]}

Zhai, Menglin ^{[3
]}

Peng, Tian ^{[1
]}

Yang, Lixia ^{[1
,2
]}

Huang, Zhixiang ^{[1
,2
]}

机构：

[1] Anhui Univ, Informat Mat & Intelligent Sensing Lab Anhui Prov, Hefei 230039, Peoples R China

[2] Anhui Univ, Key Lab Electromagnet Environm Sensing Anhui, Higher Educ Inst, Hefei 230039, Peoples R China

[3] Donghua Univ, Coll Informat Sci & Technol, Shanghai, Peoples R China

来源：

OPTICS EXPRESS | 2024年 / 32卷 / 22期

基金：

中国国家自然科学基金;

关键词：

ORBITAL ANGULAR-MOMENTUM;

D O I：

10.1364/OE.540815

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A parabolic conformal multi-order OAM-generating transmitarray with novel C-I- shaped grating cell is presented in this paper. The novel cell is composed of three layers of the upper and lower grating structures, and the C-I-shaped metal in the middle layer. Compared with the traditional C-shaped structure, the novel cell can be adjusted to cover 360 degrees transmission phase change with high transmission coefficient at the frequency band of 10-20 GHz. To approximate the parabolic conformal shape, the transmittarray is designed and constructed by using the eight fan-shaped sectors with the one isosceles triangle and three isosceles trapezoid planar subarrays. Finally, the 1st and 2nd order-mode OAM-generating transmitarrays are fabricated and measured, and the measured results basically agree with the simulated ones, verifying the parabolic conformal design method. The proposed parabolic conformal scheme will enrich conformal transmitarray design method for adapting to the future complex communication and detection environments. (c) 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：39743 / 39755

页数：13