Ka频段宽带镜频抑制谐波混频器的设计  

Design of a Ka-band Broadband Image-rejection Harmonic Mixer

作　　者：樊芳芳[1] 黄建[2] 冯林[1] 肖伟宏[1] 

机构地区：[1]电子科技大学电子工程学院,成都610054 [2]中国西南电子技术研究所,成都610036

出　　处：《电讯技术》2007年第3期159-161,共3页Telecommunication Engineering

摘　　要：介绍了一种在Ka频段具有镜频抑制功能的四次谐波混合集成电路混频器的设计与实现。该混频器主要采用微带混合集成电路,由薄膜陶瓷基片制作。经测试,当中频固定在70 MHz,在射频大于4 GHz带宽内,变频损耗小于11.2 dB,镜频抑制度大于20 dB。The design and implementation of a Ka - band hybrid integrated sub - harmonic image - rejection mixer is presented. The mixer is fabricated by using HMIC process based on the thin film ceramic sub- strate. The test results show that conversion loss is less than 11.2dB and the image - rejection ratio is more than 20dB over 4GHz RF bandwidth, when IF is fixed at 70 MHz .

关 键 词：毫米波混频器 镜频抑制混频器 亚谐波混频器 变频损耗 

分 类 号：TN773[电子电信—电路与系统]