W波段四通道下变频接收前端研究与设计  

Research and Design of a W-band Four-channel Frequency Conversion Receiver Front-end

作　　者：王欢[1,2] 赵攀 谢启隆 WANG Huan;ZHAO Pan;XIE Qilong(Southwest China Research Institute of Electronic Equipment,Chengdu 610036,China;Sichuan Province Engineering Research Center for Broadband Microwave Circuit High Density Integration,Chengdu 610036,China)

机构地区：[1]中国电子科技集团第二十九研究所,成都610036 [2]四川省宽带微波电路高密度集成工程研究中心,成都610036

出　　处：《微波学报》2024年第S1期136-139,共4页Journal of Microwaves

摘　　要：本文设计并实现了一种基于混合集成电路工艺的W波段四通道下变频接收前端。其采用超外差一次变频架构,将92~96GHz的毫米波信号经放大、滤波后,进入混频器实现下变频至X波段。该前端的本振链路采用锁相环产生基频信号再由倍频器倍频至84GHz信号的方式。为实现W波段接收前端各器件间低损耗互联,本文开展了多种过渡结构、滤波器等关键电路研究与设计。此外,为提高W波段接收前端设计可靠性,本文提取了不同器件仿真、测试等参数,在ADS软件中建立相应全链路半实物仿真模型。实物测试结果表明:本文研制的W波段下变频接收前端各通道在92~96GHz频带内增益均大于21dB,噪声系数小于5.2dB,镜像频率抑制度优于70dBc,通道间一致性优于±2dB。In this paper,a W-band four-channel frequency conversion receiver front-end based on the hybrid microwave integrated circuit(HMIC)technology is designed and implemented.The architecture utilized a superheterodyne approach,where the 92~96GHz millimeter-wave signals are amplified,filted,and then mixed down to the X-band.The local oscillator link of the front-end uses the phase-locked loop to generate the fundamental frequency and then the frequency is doubled by the mixer to 84GHz.To ensure low-loss interconnections among components in the W-band receiver front-end,various transition structures and filter are researched and designed.Additionnally,to enhance the reliability of the W-band receiver front-end design,this paper extracts simulation parameters for different components and establishes corresponding semi-phusical simulation models in ADS software.Experimental results demonstrated that the designed W-band frequency conversion front-end achieves a gain greater than 21dB,a noise figure lower than 5.2dB,mirror frequecy suppression better than 70dBc,and goog channel-to-channel consistency within the 92~96GHz frequency band.

关 键 词：W波段 超外差接收前端 过渡结构 滤波器 

分 类 号：TN850[电子电信—信息与通信工程]