可增强信号覆盖范围的放大型信息超表面设计

doi:10.11959/j.issn.1000-436x.2022143

通信学报 ›› 2022, Vol. 43 ›› Issue (12): 3-12.doi: 10.11959/j.issn.1000-436x.2022143

• 专题：信息超材料在移动通信中的应用 • 下一篇

可增强信号覆盖范围的放大型信息超表面设计

吴利杰¹^,², 杨汉卿¹^,², 程强¹^,²^,³, 崔铁军¹^,²^,³

¹ 东南大学信息科学与工程学院，江苏南京 210096
² 东南大学毫米波国家重点实验室，江苏南京 210096
³ 东南大学移动信息通信与安全前沿科学中心，江苏南京 210096

修回日期:2022-10-10 出版日期:2022-12-25 发布日期:2022-12-01
作者简介:吴利杰（1997- ），男，浙江丽水人，东南大学博士生，主要研究方向为信息超表面、可重构智能超表面等
杨汉卿（1998- ），男，江苏盐城人，东南大学博士生，主要研究方向为信息超表面、可重构超表面等
程强（1979- ），男，安徽黄山人，博士，东南大学教授，主要研究方向为电磁超材料和信息超材料
崔铁军（1965- ），男，河北承德人，博士，中国科学院院士，东南大学教授，主要研究方向为计算电磁学、智能电磁计算、电磁超材料和信息超材料等
基金资助:
国家自然科学基金资助项目(6228810001);国家自然科学基金资助项目(61731010);国家自然科学基金资助项目(62201139);国家自然科学基金资助项目(62225108);嵩山实验室基金资助项目（纳入河南省重大科技专项管理体系）(221100211300-02);嵩山实验室基金资助项目（纳入河南省重大科技专项管理体系）(221100211300-03);江苏省前沿科技攻关基础研究基金资助项目(BK20212002);中央高校基本科研业务费专项资金资助项目(2242022k30004);中央高校基本科研业务费专项资金资助项目(2242022R10185)

Design of amplifying information metasurface for enhancing signal coverage

Lijie WU¹^,², Hanqing YANG¹^,², Qiang CHENG¹^,²^,³, Tiejun CUI¹^,²^,³

¹ School of Information Science and Engineering, Southeast University, Nanjing 210096, China
² State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China
³ Frontiers Science Center for Mobile Information Communication and Security, Southeast University, Nanjing 210096, China

Revised:2022-10-10 Online:2022-12-25 Published:2022-12-01
Supported by:
The National Natural Science Foundation of China(6228810001);The National Natural Science Foundation of China(61731010);The National Natural Science Foundation of China(62201139);The National Natural Science Foundation of China(62225108);The Program of Song Shan Laboratory (Included in the Management of Major Science and Program of Henan Province)(221100211300-02);The Program of Song Shan Laboratory (Included in the Management of Major Science and Program of Henan Province)(221100211300-03);The Frontier Leading Technology Basic Research Project of Jiangsu Province(BK20212002);The Frontier Leading Technology Basic Research Project of Jiangsu Province(2242022k30004);The Frontier Leading Technology Basic Research Project of Jiangsu Province(2242022R10185)

摘要/Abstract

摘要：

传统信息超表面能对电磁波的幅度和相位做出动态调控，在无线中继中控制电磁波的传播方向，但并不能放大入射波的能量，因此这类超表面的工作距离受限，往往要通过较大的阵面面积来实现信号盲区的有效覆盖。为解决这一问题，提出了一种放大型信息超表面，并通过仿真验证了该信息超表面在2.7～3.1 GHz的宽带范围内具有2 bit的相位调制特性和信号放大能力。同时，通过引入功率分配和功率合成网络，使8个超表面单元组成一个1×8的阵列且只需使用一个放大器，以减少放大器的数量，从而降低硬件成本和系统能耗。仿真结果表明，所提出的放大型信息超表面阵列在宽带范围内同时实现了波束成形和信号能量放大，可应用于基于信息超表面的新型无线中继系统中，为增强无线信号覆盖和减小超表面阵面尺寸提供了一种全新的解决方案。

关键词: 信息超表面, 无线中继系统, 放大型信息超表面, 信号放大

Abstract:

Traditional information metasurfaces can be used in wireless relay systems to control the propagation direction of electromagnetic waves due to their capability to control the amplitude and phase.However, owing to the lack of signal amplification function, these metasurfaces have a limited operating distance.Thus, a large size of metasurfaces is usually demanded to realize the signal coverage of dead zones.To solve this problem, an amplifying information metasurface was designed to realize the 2 bit phase manipulation and signal amplification function within the broad band from 2.7 to 3.1 GHz.Furthermore, a power dividing and combining network was introduced to combine the 1×8 metasurface elements into an array with only one amplifier, which greatly reduced the number of amplifiers, the hardware cost, and the power consumption.The simulation results indicate that the array can realize beamforming and signal amplification over a broad band.Therefore, the proposed amplifying information metasurface array may find important applications in wireless relay systems and provide a new solution to enhancing the signal coverage and reducing the size of the metasurface array.

Key words: information metasurface, wireless relay system, amplifying information metasurface, signal amplifying

中图分类号:

TN92

吴利杰, 杨汉卿, 程强, 崔铁军. 可增强信号覆盖范围的放大型信息超表面设计[J]. 通信学报, 2022, 43(12): 3-12.

Lijie WU, Hanqing YANG, Qiang CHENG, Tiejun CUI. Design of amplifying information metasurface for enhancing signal coverage[J]. Journal on Communications, 2022, 43(12): 3-12.

图/表 13

图1

图2

图3

图4

图5

图6

图7

图8

图9

图10

图11

图12

表1

不同信息超表面的性能对比"

相关工作	工作带宽	调相能力	放大效果	放大器数量
文献[9]	<5.0%	2 bit	无	无
文献[10]	<5.0%	2 bit	无	无
文献[11]	7.7%	2 bit	无	无
文献[12]	<5.0%	2 bit	无	无
文献[38]	8.2%	无	0～10 dB	1个/单元
文献[39]	<5%	无	0～20 dB	2个/单元
文献[40]	5.5%	无	0～6 dB	1个/单元
文献[41]	6.8%	无	0～20 dB	1个/单元
文献[42]	18.2%	无	0～12 dB	$\frac{1}{4}$ 个/单元
本文工作	13.7%	2 bit	0～13 dB	$\frac{1}{8}$ 个/单元

表1

参考文献 32

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可增强信号覆盖范围的放大型信息超表面设计

Design of amplifying information metasurface for enhancing signal coverage

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