Full-band direct-conversion receiver with enhanced port isolation and I/Q phase balance using microwave photonic I/Q mixer  

作　　者：李建强 肖佳 宋骁雄 郑月 尹纯静 吕强 樊宇婷 尹飞飞 戴一堂 徐坤 

机构地区：[1]State Key Laboratory of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications,Beijing 100876,China [2]CETC Key Laboratory of Aerospace Information Applications,Shijiazhuang 050081,China [3]The 54th Research Institute of China Electronics Technology Croup Corporation,Shijiazhuang 050081 China

出　　处：《Chinese Optics Letters》2017年第1期66-69,共4页中国光学快报（英文版）

基　　金：supported in part by the National 863Program of China(No.2015AA016903);the National Natural Science Foundation of China(No.61431003,61601049,and 61401411);the Innovation Foundation of China Electronics Technology Group Corporation(CETC);the Innovation Foundation of Key Laboratory of Aerospace Information Applications at CETC

摘　　要：A full-band direct-conversion receiver using a microwave photonic in-phase and quadrature （I/Q） mixer is proposed and experimentally evaluated in terms of radio frequency （RF） range, port isolation, phase imbalance, conversion gain, noise figure, spurious-free dynamic range, and error vector magnitude. The proposed microwave photonic I/Q mixer shows significant advantages in locM oscillator leakage and I/Q phase imbalance over entire RF bands, which are recognized as major drawbacks of conventional direct-conversion receivers.A full-band direct-conversion receiver using a microwave photonic in-phase and quadrature （I/Q） mixer is proposed and experimentally evaluated in terms of radio frequency （RF） range, port isolation, phase imbalance, conversion gain, noise figure, spurious-free dynamic range, and error vector magnitude. The proposed microwave photonic I/Q mixer shows significant advantages in locM oscillator leakage and I/Q phase imbalance over entire RF bands, which are recognized as major drawbacks of conventional direct-conversion receivers.

关 键 词：Radio frequency photonics Analog optical signal processing Modulators 

分 类 号：TN773[电子电信—电路与系统]