1. National-Local Joint Engineering Laboratory of New Energy Photovoltaic Devices
2. Key Laboratory of Digital Medical Engineering of Hebei Province
3. College of Electron and Information Engineering
4. Hebei University
5. Baoding 071002
6. National Key Laboratory on Electromagnetic Environment Effects
7. Army Engineering University
8. Shijiazhuang 050000
9. China
10. Department of Electrical and Computer Engineering
11. Southern Illinois University Carbondale
12. Carbondale
13. USA
14. Department of Materials Science and Engineering
15. National University of Singapore
16. Singapore 117576
17. Singapore