College of Electronics Engineering Chongqing University of Posts and Telecommunications Chongqing 400065 China;
College of Electronics Engineering Chongqing University of Posts and Telecommunications Chongqing 400065 China;
College of Electronics Engineering Chongqing University of Posts and Telecommunications Chongqing 400065 China;
Institute of Microelectronics Chinese Academy of Sciences Beijing 100029 China;
College of Electronics Engineering Chongqing University of Posts and Telecommunications Chongqing 400065 China;
College of Electronics Engineering Chongqing University of Posts and Telecommunications Chongqing 400065 China;
College of Electronics Engineering Chongqing University of Posts and Telecommunications Chongqing 400065 China;