He was born in Yancheng, China. He received the B.S. degree in electronic engineering in 2000, and the M.S. and Ph.D. degrees in physical electronics in 2004 and 2008, from Southeast University (SEU), China.
In 2004, he began researching on photonic crystal in optical and microwave regime at SEU. He is currently a associated professor with SEU. He has authored and coauthored over 15 research papers. His research interests include photonic crystal devices, passive optical device and E-O modulators.

1.Novel electromagnetic band gap structures for microwave and optical applications, including algorithms and experiments studies.
2.Developing novel planar lightwave circuit (PLC) in optical communication, including theoretical design methods and fabrication technologies for PLC chips, such as splitters and microrings based on InP and SOI.
3.Theoretical investigation and Fabrication technology of Erbium-Doped Waveguide Amplifiers (EDWA), such as Er-doped Al2O3 and Er-doped Si-rich silicon oxidation.
4.Developing novel PLC modulator chips and devices.
Recent Research Project：
1.NSFC project, broad band slow wave circuit with EBG structure
2.Project of university-industry cooperation in Jiangsu Province, PLC splitters
etc.

Journal Papers:
1. Ningfeng Bai, Jinjun Feng, Fujiang Liao, Xiaohan Sun, Fast analysis for electromagnetic band gap waveguides using compactfinite-difference-time-domain method, Int. J. Electron. Commun. (AEÜ) , 2013, 67 (12): 1025– 1029
2. Ningfeng Bai, Wei Hong, Xiaohan Sun, Composite defect electromagnetic band gap cavity, Acta Physica Sinica, 2011,60(1):018401
3. Ningfeng Bai, Lingyao Chen, Hehong Fan, Ming Xue, Xiaohan Sun, High Impedance Ground Plane Based on Electromagnetic Band Gap Surface, Chinese Journal of Electron Devices, 2010, 33(6) :720-724.
4. Ningfeng Bai, Xiaohan Sun, Optimum Design on Compact Photonic Crystal Waveguide Directional Coupler Based on Adiabatic Coupling, Acta Electronica Sinica, 2007, 35(2) : 220-223
5. Ningfeng Bai, Xu Liu, Jinbiao Xiao, Mingde Zhang, Xiaohan Sun, Efficient coupling from dielectric rib waveguide to two-dimensional photonic crystal waveguide, Acta Physica Sinica, 2005, 54(10) ：4933-4937
Conference Papers:
1. Ningfeng Bai, Hehong Fa, Xingqun Zhao, Jinjun Feng, Fujiang Liao, Xiaohan Sun, Electromagnetic Band Gap Substrate for Planar Microstrip Meander Line Travelling Wave Tube, IVEC 2012, Monterey USA.
2. Ningfeng Bai, Jinbiao Xiao, Xu Liu, Mingde Zhang, Xiaohan Sun, Photonic crystal waveguide directional coupler based on adiabatic coupling. The 20th Congress of the Internatinoal Commision for Optics (ICOXX). Bellingham WA: International Society for Optical Engineering. 2006, 6025:942-947
3. Ningfeng Bai, Jinbiao Xiao, Xu Liu, Mingde Zhang, Xiaohan Sun, FDTD based analysis for electromagnetic band gap structure and defect mode of 2D metallic photonic crystal. Proceedings of IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications. Piscataway: IEEE, 2005. 906-909