1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People's Republic of China
2. Department of Mechanical Engineering, University of Minnesota, 111 Church Street SE, Minneapolis, Minnesota 55455, USA
3. Guangxi Medical Equipment Testing Center, Xinmin Road 1-1, Nanning, Guangxi 530021, People's Republic of China
4. National Demonstration Center for Experimental Electrical and Electronic Education, Yangtze University, Jingzhou, Hubei 434000, People's Republic of China and Electronics and Information School, Yangtze University, Jingzhou, Hubei 434000, People's Republic of China
5. School of Chemistry, Physics, Mechanical Engineering, Queensland University of Technology, Brisbane, QLD 4000, Australia
6. CSIRO-QUT Joint Sustainable Processes and Devices Laboratory, Commonwealth Scientific and Industrial Research Organisation, PO Box 218, Lindfield, NSW 2070, Australia