GaAs毫米波双路数控衰减器MMIC  

A GaAs Millimeter Wave Double-Circuit CNC Attenuator MMIC

作　　者：丁红沙 DING Hongsha(The 13th Research Institute of CETC,Shijiazhuang 050051,China)

机构地区：[1]中国电子科技集团公司第十三研究所,河北石家庄050051

出　　处：《现代信息科技》2023年第11期61-63,68,共4页Modern Information Technology

摘　　要：基于GaAs E/D赝配高电子迁移率晶体管(PHEMT)工艺,设计并实现了一款毫米波双路数控衰减器。芯片上集成了两个4位数控衰减器、一分二功分器和8位数字驱动器。重点介绍了射频电路数控衰减器和功分器的拓扑结构设计。该芯片测试结果显示在26~32 GHz频段内,芯片插入损耗小于6 dB,衰减均方根误差小于0.5 dB,衰减附加相移小于±5°,输入输出电压驻波比小于1.6:1,工作电流小于6 mA。芯片尺寸仅为2.00 mm×2.00 mm×0.07 mm。A millimeter wave double-circuit CNC attenuator is designed and implemented based on the GaAs E/D Pseudomorphic High Electron Mobility Transistor(PHEMT)process.The chip is intergrated with two 4 bit CNC attenuators,a power divider and 8 bit digital dirver.The topological structure design of radiofrequency circuit CNC attenuator and power distributor are emphatically introduced.The chip measurement results show that 26~32 GHz,the insertion loss of the chip is less than 6 dB,the attenuator root mean square error is less than 0.4 dB,the phase error is less than±5°,the input and output voltage standing wave ratio is less than 1.6:1,and working current is less than 6 mA.The chip size is 2.00 mm×2.00 mm×0.07 mm.

关 键 词：GaAs E/D赝配高电子迁移率晶体管(PHEMT) 单片微波集成电路(MMIC) 毫米波 双路数控衰减器 

分 类 号：TN43[电子电信—微电子学与固体电子学]