W-band CMOS beamforming ICs and integrated phased-array antennas with 20+Gb/s data rates  

作　　者：Dixian ZHAO Peigen YU Shan JIANG Weihan GAO Pingyang HE Huiqi LIU 

机构地区：[1]School of Information Science and Engineering,Southeast University,Nanjing 210096,China [2]Purple Mountain Laboratories,Nanjing 211100,China [3]Chengdu Xphased Technology Co.,Ltd.,Chengdu 610041,China

出　　处：《Science China(Information Sciences)》2024年第11期296-312,共17页中国科学（信息科学）（英文版）

摘　　要：This article presents the design and implementation of W-band transmitter(TX)and receiver(RX)phased-array antennas,which leverage CMOS and printed circuit board(PCB)technologies to integrate the phased-array antennas with eight-channel beamforming ICs.The beamforming IC applies the variable gain amplifier(VGA)with fractional bits and the vector-modulated variable gain phase shifter(VGPS)for wide range and high precision of gain and phase shifting,providing moderate power gain.The phased-array board consists of 384 TX and 384 RX antenna elements,along with 48 TX and 48 RX beamforming ICs.It also incorporates Wilkinson power dividers/combiners,a power management system,and a beamforming control module,all integrated into a cost-effective multi-layer PCB.Fabricated in 65-nm bulk CMOS,the IC achieves 3°RMS phase error for phase shifting and 0.5 d B RMS gain error for gain shifting,ensuring high precision of antenna pointing.The over-the-air(OTA)measurement of the proposed W-band phased-array antennas achieves a 64-QAM constellation with a symbol rate of 3.5 GS/s,resulting in raw data rates of21 Gb/s.

关 键 词：W-BAND phased array CMOS Gigabit wireless link antenna on PCB 

分 类 号：TN821.8[电子电信—信息与通信工程]