Instantaneous microwave frequency measurement based on hybrid microwave photonic filter  

作　　者：徐恩明 王棋 王飞 李培丽 

机构地区：[1]School of Optoelectronic Engineering,Nanjing University of Posts and Telecommunications [2]School of Optoelectronic Information,Chongqing University of Technology

出　　处：《Optoelectronics Letters》2014年第5期374-377,共4页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.61302026,61275067 and 61007064);the Jiangsu Natural Science Foundation(Nos.BK2012432 and BK2012830);the PhD Programs Foundation of the Ministry of Education of China(No.20123223120005);the Natural Science Foundation of the Jiangsu Higher Education Institutions(No.13KJB510025);the Key Project of the Natural Science Foundation Project of Chongqing(No.cstc2013jjB20004)

摘　　要：A novel photonic technique for instantaneous microwave frequency measurement based on hybrid microwave photonic filter(HMPF) is proposed and experimentally demonstrated. The HMPF is composed of an all-pass filter and a band-pass filter with negative coefficients. By properly controlling the power relationship between the all-pass filter and the band-pass filter, the HMPF can realize a monotonic frequency response, and then a unique relationship between the output power and the input frequency is established. A high measurement resolution can be achieved for a given frequency range.

关 键 词：ALL pass filters Bandpass filters Frequency response Microwave frequencies 

分 类 号：TM935.1[电气工程—电力电子与电力传动]