A Retrodirective Array Enabled by CMOS Chips for Two-Way Wireless Communication with Automatic Beam Tracking

作     者：Jiacheng Guo Yizhu Shen Guoqing Dong Zhuang Han Sanming Hu Jiacheng Guo;Yizhu Shen;Guoqing Dong;Zhuang Han;Sanming Hu

作者机构：State Key Laboratory of Millimeter WavesSchool of Information Science and EngineeringSoutheast UniversityNanjing 210096China Purple Mountain LaboratoriesNanjing 211111China 

出 版 物：《Engineering》 (工程（英文）)

年 卷 期：2024年第37卷第6期

页      面：196-207页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：supported in part by the National Key Research and Development Program of China(2019YFB2204701) in part by the National Natural Science Foundation of China(61831006,62022023,and 62250610223) in part by the Big Data Computing Center at Southeast University for numerical calculation 

主　　题：Automatic beam tracking CMOS Retrodirective array Two-way communication 

摘      要：This article proposes and demonstrates a retrodirective array(RDA)for two-way wireless communication with automatic beam *** proposed RDA is enabled by specifically designed chips made using a domestic complementary metal-oxide semiconductor(CMOS)*** highly integrated CMOS chip includes a receiving(Rx)chain,a transmitting(Tx)chain,and a unique tracking phaselocked loop(PLL)for the crucial conjugated phase recovery in the *** article also proposes a method to reduce the beam pointing error(BPE)in a conventional *** validate the above ideas simply yet without loss of generality,a 2.4 GHz RDA is demonstrated through two-way communication links between the Rx and Tx chains,and an on-chip quadrature coupler is designed to achieve a nonretrodirective signal suppression of 23 *** experimental results demonstrate that the proposed RDA,which incorporates domestically manufactured low-cost 0.18 lm CMOS chips,is capable of automatically tracking beams covering±40
with a reduced *** CMOS chip in the RDA has a compact size of 4.62 mm^(2) and a low power consumption of 0.15 *** the best of the authors’knowledge,this is the first research to demonstrate an RDA with a fully customized CMOS chip for wireless communication with automatic beam tracking。