1. 非均匀环境中的电磁辐射与散射

（a）研究半空间环境（地上、海上）目标电磁辐射与散射特性，服务于复杂环境中的目标探测与识别、地海空天环境中的信息获取等。

图1：海上航母平台、地上坦克电磁仿真

（b）研究分层介质(非均匀地层)的电磁辐射与散射，服务于地下、海洋资源的勘探与开发。

                       图2：分层介质中复杂目标散射电磁仿真

部分论文：

[1] Y. Ren, Y. Chen, Q. Zhan, J. Niu, and Q. H. Liu, "A higher-order hybrid SIE/FEM/SEM method for the flexible electromagnetic simulation in layered medium," IEEE Trans. Geosci. Remote Sens., vol. 55, no. 5, pp. 2563-2574, May 2017.

[2] Y. Ren, Q. H. Liu, and Y. P. Chen, "A hybrid FEM/MoM method for 3-D electromagnetic scattering in layered medium," IEEE Trans. Antennas Propag., vol. 64, no. 8, pp. 3487-3495, Aug. 2016.

[3] Y. P. Chen, S. Sun, L. Jiang and W. C. Chew, "A Calderon preconditioner for the electric field integral equation with layered medium Green’s function," IEEE Trans. Antennas Propag., vol. 62, no. 4, pp. 2022-2030, Aprl. 2014.

[4] Y. P. Chen, W. Luo, Z. Nie, and, J. Hu, "Simulation of complex multiscale objects in half space with Calderon preconditioner and adaptive cross approximation," IEEE Trans. Antennas Propag., vol. 62, no. 12, pp. 6528-6532, Dec. 2014.

[5] Y. P. Chen, W. C. Chew, and L. Jiang, "A new Green’s function formulation for modeling homogeneous objects in layered medium," IEEE Trans. Antennas Propag., vol. 60, no. 10, pp. 4766-4776, Oct. 2012.

2. 多物理仿真

研究电磁波-物质相互作用、纳米电磁学、等离子体、石墨烯量子效应，可应用于新型光电器件、量子信息、超材料等领域。

                                      图3：等离子体纳米颗粒、石墨烯自发辐射，电磁波-物质相互作用Rabi震荡研究

部分论文：

[1] Y. P. Chen, W. E. I. Sha, L. Jiang, M. Meng, Y. M. Wu, and W. C. Chew, "A unified Hamiltonian solution to Maxwell–Schrödinger equations for modeling electromagnetic field–particle interaction," Comput. Phys. Commun., vol. 25, pp. 63-70, Jun. 2017.

[2] Y. P. Chen, W. E. I. Sha, L. Jiang, and J. Hu, "Graphene plasmonics for tuning photon decay rate near metallic split-ring resonator in a multilayered substrate," Opt. Express, vol. 23, no. 3, pp. 2798-2807, Feb. 2015.

[3] Y. P. Chen, W. E. I. Sha, W. C. H. Choy, L. Jiang, and W. C. Chew, "Study on spontaneous emission in complex multilayered plasmonic system via surface integral equation approach with layered medium Green’s function," Opt. Express, vol. 20, no. 18, pp. 20210-20221, Aug. 2012.

3. 计算电磁学与雷达目标特性

（1）研究电大、多尺度目标电磁散射特性，可服务于雷达系统设计、目标分类与识别等。

                          图4：电大、多尺度目标的电磁散射建模

（2）研究研究含复杂材料、金属介质组合结构目标的电磁散射特性，服务于天线罩设计、飞行器隐身设计等。

                     图5：含天线阵、天线罩、武器挂载的整机一体化电磁建模

（3）研究复杂复杂电磁系统电磁辐射效应，可应用于电磁兼容分析，电磁波对人脑辐射影响评估等。

                            图6：手机通话对人脑电磁辐射分析

部分论文：

[1] Y. Chen, X. Tian, S.-X. Peng, K.-H. Lim, and J.-F. Lee, "A reverse operation self-consistent evaluation approach for singular integrals in the SIE analysis of PEC targets," IEEE Trans. Antennas Propag., vol. 66, no. 4, pp. 1914-1924, Aprl. 2018.

[2] P.-H. Jia, J. Hu, Y. Chen, R. Zhang, L. Lei, and Z. Nie, "H-matrices compressed multiplicative Schwarz preconditioner for nonconformal FEM-BEM-DDM," IEEE Trans. Antennas Propag., vol. 66, no. 5, pp. 2691-2696, May 2018.

[3]  M. Jiang , Y. Chen, D. Li, H. Zhao, S. Sun , Z. Nie , and J. Hu, "A flexible SIE-DDM for EM scattering by large and multiscale problems," IEEE Trans. Antennas Propag., vol. 66, no. 12, pp. 7466-7471, Dec. 2018.

[4] J. Lu, Y. Chen, D. Li, and J.-F. Lee, "An overlapping domain decomposition method for electromagnetic modeling and design," IEEE Trans. Antennas Propag., accepted.

[5] Y. Chen, D. Li, J. Hu, and J.-F Lee, "A nonconformal surface integral equation for electromagnetic scattering by multiscale conducting objects," IEEE J. Multiscale Multiphys. Comput. Tech., vol. 3, pp. 225-234, Dec. 2018.

4. 天线数值模拟与优化设计

研究天线、阵列数值模拟，特征模理论，天线设计，应用于各类无线通信终端、基站，无线能量收集等。

                            图7：天线、天线阵数值模拟与设计

部分论文：

[1] K. Sun, D. Yang, Y. Chen, and S. Liu, "A broadband commonly fed dual-polarized antenna," IEEE Antennas Wireless Propag. Lett., vol. 17, no. 5, pp. 747-750, May 2018.

[2] Y. P. Chen, J. L. Xiong, and W. C. Chew, "A mixed-form thin-stratified medium fast-multipole algorithm for both low and mid-frequency problems," IEEE Trans. Antennas Propag., vol. 59, no. 6, pp. 2341-2349, Jun. 2011.

[3] J. L. Xiong, Y. P. Chen, and W. C. Chew, "A quasi-3D thin-stratified medium fast-multipole algorithm for microstrip structures," IEEE Trans. Antennas Propag., vol. 59, no. 7, pp. 2578-2587, Jul. 2011.