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Journal Publications

(* denotes the corresponding author)

  1. Zhen Guan, Jiawen Li, Feng Han*, Falin Liu, “Singularity extraction for spherical harmonic expansion of 3-D dyadic Green's functions in a homogeneous space,” IEEE Transactions on Antennas and Propagation, to be submitted.

  2. Jiawen Li, Jianqun Luo, Feng Han*, “Electromagnetic scattering and inverse scattering of 3-D inhomogeneous objects straddling multiple planar layers solved by the FEBI-LM method,” IEEE Transactions on Antennas and Propagation, to be submitted.

  3. Kemeng Tao, Sijia Ma, Jiawen Li, Feng Han*, “Diffraction tomographic reconstructibility in layered media: From 2-D to 3-D and from half-space to multiple layers,” IEEE Transactions on Geoscience and Remote Sensing, to be submitted.

  4. Jiawen Li, Qi Qiang Liu, Zhen Guan, Feng Han*, “Hybrid electromagnetic reconstruction of multiple 2-D subsurface inhomogeneous objects based on FRTM and FEBI-LM methods enhanced by domain decomposition,” IEEE Transactions on Antennas and Propagation, submitted.

  5. Feng Han*, Kemeng Tao, Sijia Ma, Jiawen Li, “VIE solutions of 2.5-D electromagnetic scattering by arbitrary anisotropic objects embedded in layered uniaxial media,” IEEE Transactions on Antennas and Propagation, vol. xx, no. x, pp. xxx–xxx, xxx. 2025. [pdf]

  6. Kemeng Tao, Sijia Ma, Feng Han*, “Influence of 2-D transceiver array aperture size and polarization on 3-D microwave imaging of subsurface objects under Born approximation,” IEEE Transactions on Microwave Theory and Techniques, vol. 73, no. 1, pp. 456–469, Jan. 2025. [pdf]

  7. Jiawen Li, Zili Li, Ruidong Huang, Feng Han*, “Electromagnetic FWI of 2-D inhomogeneous objects straddling multiple planar layers by finite-element boundary integral and Levenberg-Marquardt methods,” IEEE Transactions on Geoscience and Remote Sensing, vol. 63, 2025, Art. no. 2001012. [pdf]

  8. Qing Wu, Ruidong Huang, Feng Han*, “2-D EM scattering and inverse scattering from inhomogeneous objects straddling multiple subsurface planar layers with a rough surface,” IEEE Geoscience and Remote Sensing Letters, vol. 21, 2024, Art. no. 3001605. [pdf]

  9. Zhen Guan, Jiawen Li, Feng Han*, “2-D electromagnetic scattering from multiple arbitrarily anisotropic inhomogeneities embedded in multilayered biaxially anisotropic elliptical cylinders solved by the hybrid SIM/SEM,” IEEE Transactions on Antennas and Propagation, vol. 72, no. 8, pp. 6849–6854, Aug. 2024. [pdf]

  10. Sijia Ma, Kemeng Tao, Feng Han*, “Influence of transceiver array aperture size on electromagnetic linear inverse scattering from 2-D objects embedded in planarly multilayered media,” IEEE Transactions on Geoscience and Remote Sensing, vol. 62, 2024, Art. no. 2003513. [pdf]

  11. Jiawen Li, Zili Li, Zhen Guan, Feng Han*, “2-D electromagnetic scattering and inverse scattering from anisotropic objects under TE illumination solved by the hybrid SIM/SEM,” IEEE Transactions on Antennas and Propagation, vol. 72, no. 4, pp. 3517–3528, Apr. 2024. [pdf]

  12. Zhen Guan, Jiawen Li, Feng Han*, “Exponential accuracy solutions of 2-D electromagnetic scattering from multilayered nonconcentric elliptical magnetodielectric cylinders under TE illumination,” IEEE Transactions on Microwave Theory and Techniques, vol. 72, no. 5, pp. 2914–2926, May. 2024. [pdf]

  13. Ruidong Huang, Qing Wu, Feng Han*, “3-D EM scattering and inverse scattering by anisotropic objects straddling multiple planar uniaxial layers with a 2-D locally rough surface,” IEEE Transactions on Antennas and Propagation, vol. 71, no. 11, pp. 8936–8948, Nov. 2023. [pdf]

  14. Feng Han*, Miao Zhong, Junjie Fei, “Hybrid microwave imaging of 3-D objects using LSM and BIM aided by a CNN U-Net,” IEEE Transactions on Geoscience and Remote Sensing, vol. 60, 2022, Art. no. 2006809. [pdf]

  15. Junjie Fei, Yanjin Chen, Miao Zhong, Feng Han*, “Fast 3-D electromagnetic full-wave inversion of dielectric anisotropic objects based on ResU-Net enhanced by variational Born iterative method,” IEEE Transactions on Antennas and Propagation, vol. 70, no. 8, pp. 6229–6239, Aug. 2022. [pdf]

  16. Yanjin Chen, Miao Zhong, Zhen Guan, Feng Han*, “A tailored semiphysics-driven artificial neural network for electromagnetic full-wave inversion,” IEEE Transactions on Antennas and Propagation, vol. 70, no. 8, pp. 6207–6217, Aug. 2022. [pdf]

  17. Longfang Ye*, Zhengyi Wang, Jianliang Zhuo, Feng Han, Weiwen Li, Qing Huo Liu, “A back-fire to forward wide-angle beam steering leaky-wave antenna based on SSPPs,” IEEE Transactions on Antennas and Propagation, vol. 70, no. 5, pp. 3237–3247, May. 2022. [pdf]

  18. Miao Zhong, Yanjin Chen, Jiawen Li, Feng Han*, “Reconstruction of subsurface objects by LSM and FWI from limited-aperture electromagnetic data,” IEEE Transactions on Geoscience and Remote Sensing, vol. 60, 2022, Art. no. 2003011. [pdf]

  19. Jiawen Li, Yanjin Chen, Jianliang Zhuo, Feng Han*, “3-D voxel-based reconstruction of multiple objects buried in layered media by VBIM hybridized with unsupervised machine learning,” IEEE Transactions on Geoscience and Remote Sensing, vol. 60, 2022, Art. no. 2002212. [pdf]

  20. Xianliang Huang, Jiawen Li, Jianliang Zhuo, Feng Han*, Qing Huo Liu*, “Fast and reliable reconstruction of 3-D arbitrary anisotropic objects buried in layered media by cascaded inverse solvers,” IEEE Geoscience and Remote Sensing Letters, vol. 19, 2022, Art. no. 8011805. [pdf]

  21. Shan Lu, Bingyang Liang, Jianwen Wang, Feng Han*, Qing Huo Liu*, “1-D inversion of GREATEM data by supervised descent learning,” IEEE Geoscience and Remote Sensing Letters, vol. 19, 2022, Art. no. 8007305. [pdf]

  22. Feng Han, Jianliang Zhuo, Shan Lu, Jianwen Wang, Qing Huo Liu*, “Explicit semianalytical expressions of sensitivity matrices for the reconstruction of 1-D planarly layered TI media illuminated by 3-D sources,” IEEE Transactions on Antennas and Propagation, vol. 70, no. 2, pp. 1547–1552, Feb. 2022. [pdf]

  23. Hai Liu, Zhijie Chen, Hantao Lu, Feng Han, Chao Liu*, Jing Li*, Jie Cui, “Migration of ground penetrating radar with antenna radiation pattern correction,” IEEE Geoscience and Remote Sensing Letters, vol. 19, 2022, Art. no. 3500805. [pdf]

  24. Yanjin Chen, Jiawen Li, Lixiao Wang, Feng Han*, Qing Huo Liu, “Multiparametric electromagnetic inversion of 3-D anisotropic objects embedded in layered media based on mixed L1-L2 norm regularization,” IEEE Antennas and Wireless Propagation Letters, vol. 20, no. 5, pp. 738–742, May. 2021. [pdf]

  25. Yanjin Chen, Li-Ye Xiao, Jianliang Zhuo, Feng Han*, Qing Huo Liu, “Quantitative electromagnetic inversion of irregular scatterers based on a threefold hybrid method,” IEEE Transactions on Antennas and Propagation, vol. 69, no. 12, pp. 8664–8674, Dec. 2021. [pdf]

  26. Li-Ye Xiao, Jiawen Li, Feng Han, Hao-Jie Hu, Mingwei Zhuang*, Qing Huo Liu*, “Super-resolution 3-D microwave imaging of objects with high contrasts by a semijoin extreme learning machine,” IEEE Transactions on Microwave Theory and Techniques, vol. 69, no. 11, pp. 4840–4855, Nov. 2021. [pdf]

  27. Hai Liu, Hantao Lu, Jianying Lin, Feng Han, Chao Liu*, Jie Cui*, Billie F. Spencer, “Penetration properties of ground penetrating radar waves through rebar grids,” IEEE Geoscience and Remote Sensing Letters, vol. 18, no. 7, pp. 1199–1203, Jul. 2021. [pdf]

  28. Xi Tang, Jiawen Li, Lixiao Wang, Feng Han*, Hai Liu, Qing Huo Liu*, “Hybrid reconstruction of subsurface 3-D objects using FRTM and VBIM enhanced by Monte Carlo method,” IEEE Geoscience and Remote Sensing Letters, vol. 18, no. 2, pp. 213–217, Feb. 2021. [pdf]

  29. Yanjin Chen, Jiawen Li, Jianliang Zhuo, Feng Han*, Qing Huo Liu, “Fast multiparametric electromagnetic full-wave inversion via solving contracting scattering data equations optimized by the 3-D MRF model,” IEEE Transactions on Microwave Theory and Techniques, vol. 68, no. 11, pp. 4515–4527, Nov. 2020. [pdf]

  30. Lixiao Wang, Yuxian Zhang, Feng Han, Jianyang Zhou*, Qing Huo Liu*, “A phaseless inverse source method (PISM) based on near-field scanning for radiation diagnosis and prediction of PCBs,” IEEE Transactions on Microwave Theory and Techniques, vol. 68, no. 10, pp. 4151–4160, Oct. 2020. [pdf]

  31. Xianliang Huang, Jiawen Li, Yanjin Chen, Feng Han*, Qing Huo Liu*, “Hybrid electromagnetic inversion of 3-D irregular scatterers embedded in layered media by VBIM and MET,” IEEE Transactions on Antennas and Propagation, vol. 68, no. 12, pp. 8238–8243, Dec. 2020. [pdf]

  32. Jianwen Wang, Jiawen Li, Yanjin Chen, Feng Han*, Qing Huo Liu*, “Simulation of 3-D electromagnetic scattering and inverse scattering by arbitrary anisotropic dielectric objects embedded in layered arbitrary anisotropic media,” IEEE Transactions on Antennas and Propagation, vol. 68, no. 8, pp. 6473–6478, Aug. 2020. [pdf]

  33. Li-Ye Xiao, Jiawen Li, Feng Han*, Wei Shao, Qing Huo Liu*, “Dual-module NMM-IEM machining learning for fast electromagnetic inversion of inhomogeneous scatterers with high contrasts and large electrical dimensions,” IEEE Transactions on Antennas and Propagation, vol. 68, no. 8, pp. 6245–6255, Aug. 2020. [pdf]

  34. Zhen Guan, Yuxian Zhang, Feng Han*, Chunhui Zhu, Qing Huo Liu*, “Fast exponentially convergent solution of electromagnetic scattering from multilayer concentric magnetodielectric cylinders by the spectral integral method,” IEEE Transactions on Microwave Theory and Techniques, vol. 68, no. 6, pp. 2183–2193, Jun. 2020. [pdf]

  35. Jiawen Li, Jianliang Zhuo, Yanjin Chen, Feng Han*, Qing Huo Liu, “Retrieval of composite model parameters for 3-D microwave imaging of biaxial objects by BCGS-FFT and PSO,” IEEE Transactions on Microwave Theory and Techniques, vol. 68, no. 5, pp. 1896–1907, May. 2020. [pdf]

  36. Chen Qiu, Bingyang Liang, Feng Han*, Jutao Li, Guangyou Fang, Qing Huo Liu*, “3-D full-wave inversion of helicopter transient electromagnetic data in frequency domain,” IEEE Transactions on Geoscience and Remote Sensing, vol. 58, no. 7, pp. 4928–4938, Jul. 2020. [pdf]

  37. Yanhui Liu*, Yuqi Yang, Feng Han, Qing Huo Liu, Y. Jay Guo, “Improved beam-scannable ultra-wideband sparse antenna arrays by iterative convex optimization based on raised power series representation,” IEEE Transactions on Antennas and Propagation, vol. 68, no. 7, pp. 5696–5701, Jun. 2020. [pdf]

  38. Jianliang Zhuo, Longfang Ye, Feng Han*, Liujing Xiong, Qing Huo Liu*, “Multiparametric electromagnetic inversion of 3-D biaxial anisotropic objects embedded in layered uniaxial media using VBIM enhanced by structural consistency constraint,” IEEE Transactions on Antennas and Propagation, vol. 68, no. 6, pp. 4774–4785, Jun. 2020. [pdf]

  39. Foxiang Liu, Yanhui Liu*, Feng Han, Yong-Ling Ban, Y. Jay Guo, “Synthesis of large unequally spaced planar arrays utilizing differential evolution with new encoding mechanism and Cauchy mutation,” IEEE Transactions on Antennas and Propagation, vol. 68, no. 6, pp. 4406–4416, Jun. 2020. [pdf]

  40. Junping Xiao, Jiawen Li, Yanjin Chen, Feng Han*, Qing Huo Liu, “Fast electromagnetic inversion of inhomogeneous scatterers embedded in layered media by Born approximation and 3-D U-Net,” IEEE Geoscience and Remote Sensing Letters, vol. 17, no. 10, pp. 1677–1681, Oct. 2020. [pdf]

  41. Feng Han, Bingyang Liang, Jiawen Li, Feifan Liu, Gaopeng Lu*, Qing Huo Liu*, “Mid- and low-latitude ionospheric D region remote sensing by radio atmospherics-Part I: Forward modeling and field measurement validations,” IEEE Transactions on Antennas and Propagation, vol. 68, no. 2, pp. 1044–1054, Feb. 2020. [pdf]

  42. Jiawen Li, Jianliang Zhuo, Zhen Guan, Feng Han*, Qing Huo Liu, “3-D electromagnetic scattering and inverse scattering by magnetodielectric objects with arbitrary anisotropy in layered uniaxial media,” IEEE Transactions on Antennas and Propagation, vol. 68, no. 2, pp. 1009–1022, Feb. 2020. [pdf]

  43. Junping Xiao, Xi Tang, Bingyang Liang, Feng Han*, Hai Liu, Qing Huo Liu, “Subsurface reconstruction from GPR data by 1-D DBIM and RTM in frequency domain,” IEEE Geoscience and Remote Sensing Letters, vol. 17, no. 4, pp. 582–586, Apr. 2020. [pdf]

  44. Hai Liu, Xiaoyun Huang, Feng Han, Jie Cui*, Billie F. Spencer, Xiongyao Xie*, “Hybrid polarimetric GPR calibration and elongated object orientation estimation,” IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol. 12, no. 7, pp. 2080–2087, Jul. 2019. [pdf]

  45. Chen Qiu, Bingyang Liang, Feng Han*, Hai Liu, Chunhui Zhu, Na Liu, Fubo Liu, Guangyou Fang, Qing Huo Liu*, “Multifrequency 3-D inversion of GREATEM data by BCGS-FFT-BIM,” IEEE Transactions on Geoscience and Remote Sensing, vol. 57, no. 4, pp. 2439–2448, Apr. 2019. [pdf]

  46. Tian Lan, Na Liu, Feng Han*, Qing Huo Liu*, “Joint petrophysical and structural inversion of electromagnetic and seismic data based on volume integral equation method,” IEEE Transactions on Geoscience and Remote Sensing, vol. 57, no. 4, pp. 2075–2086, Apr. 2019. [pdf]

  47. Feng Han, Jianliang Zhuo, Na Liu, Yanhui Liu, Hai Liu*, Qing Huo Liu*, “Fast solution of electromagnetic scattering for 3-D inhomogeneous anisotropic objects embedded in layered uniaxial media by the BCGS-FFT method,” IEEE Transactions on Antennas and Propagation, vol. 67, no. 3, pp. 1748–1759, Mar. 2019. [pdf]

  48. Tian Lan, Na Liu, Yanhui Liu, Feng Han*, Qing Huo Liu*, “2-D electromagnetic scattering and inverse scattering from magnetodielectric objects based on integral equation method,” IEEE Transactions on Antennas and Propagation, vol. 67, no. 2, pp. 1346–1351, Feb. 2019. [pdf]

  49. Jianliang Zhuo, Feng Han*, Longfang Ye, Zhiru Yu, Qing Huo Liu*, “Simulation of electromagnetic scattering of 3-D inhomogeneous biaxial anisotropic magnetodielectric objects embedded in uniaxial anisotropic media by the mixed-order BCGS-FFT method,” IEEE Transactions on Microwave Theory and Techniques, vol. 66, no. 8, pp. 3745–3755, Aug. 2018. [pdf]

  50. Hai Liu, Zhijun Long, Feng Han*, Guangyou Fang, Qing Huo Liu, “Frequency-domain reverse-time migration of ground penetrating radar based on layered medium Green’s functions,” IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol. 11, no. 8, pp. 2957–2965, Aug. 2018. [pdf]

  51. Yanhui Liu, Jingjing Bai, Kai Da Xu*, Zhiyao Xu, Feng Han, Qing Huo Liu, Y. Jay Guo, “Linearly polarized shaped power pattern synthesis with sidelobe and cross-polarization control by using semidefinite relaxation,” IEEE Transactions on Antennas and Propagation, vol. 66, no. 6, pp. 3207–3212, Jun. 2018. [pdf]

  52. Bingyang Liang, Chen Qiu, Feng Han*, Chunhui Zhu, Na Liu, Hai Liu, Fubo Liu, Guangyou Fang, Qing Huo Liu*, “A new inversion method based on distorted Born iterative method for grounded electrical source airborne transient electromagnetics,” IEEE Transactions on Geoscience and Remote Sensing, vol. 56, no. 2, pp. 877–887, Feb. 2018. [pdf]

  53. Tian Lan, Hai Liu, Na Liu, Jinghe Li, Feng Han*, Qing Huo Liu*, “Joint inversion of electromagnetic and seismic data based on structural constraints using variational Born iteration method,” IEEE Transactions on Geoscience and Remote Sensing, vol. 56, no. 1, pp. 436–445, Jan. 2018. [pdf]

  54. Hai Liu, Zhihao Deng, Feng Han*, Yuanyou Xia, Qing Huo Liu, Motoyuki Sato, “Time-frequency analysis of air-coupled GPR data for identification of delamination between pavement layers,” Construction and Building Materials, vol. 154, pp. 1207–1215, 2017. [pdf]

  55. Hai Liu, Zhijun Long, Feng Han*, Qing Huo Liu*, “Two-dimensional reverse time migration applied to GPR with a 3-D-to-2-D data conversion,” IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol. 10, no. 10, pp. 4313–4320, Oct. 2017. [pdf]

  56. Jianliang Zhuo, Feng Han*, Na Liu, Longfang Ye, Hai Liu, Qing Huo Liu, “Derivation and fast computation of dyadic Green's functions of magnetic vector potential for unbounded uniaxial anisotropic media,” Applied Computational Electromagnetics Society Journal, vol. 32, pp. 862–871, 2017. [pdf]

  57. Yongjin Chen, Paiju Wen, Feng Han*, Na Liu, Qing Huo Liu, “Three-dimensional reconstruction of objects embedded in spherically layered media using the variational Born iterative method,” IEEE Geoscience and Remote Sensing Letters, vol. 14, no. 7, pp. 1037–1041, Jul. 2017. [pdf]

  58. Paiju Wen, Yongjin Chen, Feng Han*, Na Liu, Hai Liu, Qing Huo Liu*, “Three-dimensional scattering and inverse scattering from a disturbed region in planarly layered cold unmagnetized plasma media,” IEEE Geoscience and Remote Sensing Letters, vol. 14, no. 4, pp. 559–563, Apr. 2017. [pdf]

  59. Yongjin Chen, Feng Han*, Na Liu, Paiju Wen, Qing Huo Liu, “Electromagnetic scattering from inhomogeneous objects embedded in spherically multilayered media solved by the method of moments,” Microwave and Optical Technology Letters, vol. 59, no. 3, pp. 526–530, 2017. [pdf]

  60. Feng Han, Steven A. Cummer*, Jingbo Li, Gaopeng Lu, “Daytime ionospheric D region sharpness derived from VLF radio atmospherics,” Journal of Geophysical Research, vol. 116, 2011, Art. no. A05314. [pdf]

  61. Feng Han, Steven A. Cummer*, “Midlatitude daytime D region ionosphere variations measured from radio atmospherics,” Journal of Geophysical Research, vol. 115, 2010, Art. no. A10314. [pdf]

  62. Feng Han, Steven A. Cummer*, “Midlatitude nighttime D region ionosphere variability on hourly to monthly timescales,” Journal of Geophysical Research, vol. 115, 2010, Art. no. A09323. [pdf]

  63. Steven A. Cummer*, Jingbo Li, Feng Han, Gaopeng Lu, Nicolas Jaugey, Walter A. Lyons, Thomas E. Nelson, “Quantification of the troposphere-to-ionosphere charge transfer in a gigantic jet,” Nature Geoscience, vol. 2, pp. 617–620, 2009. [pdf]

Conference Presentations

  1. Feng Han, Kemeng Tao, Sijia Ma, Jiawen Li, “VIE solutions of 2.5-D electromagnetic scattering by arbitrary anisotropic objects embedded in layered uniaxial media,” The 2024 ACES Symposium, Xi'an, China, August 16-19, 2024.

  2. Feng Han, Yanjin Chen, Miao Zhong, Zhen Guan, “A tailored semi-physics-driven and semi-data-driven artificial neural network for electromagnetic full-wave inversion,” The 43rd PIERS, Hangzhou, China, April 22-25, 2022.

  3. Feng Han, Yanjin Chen, “A tailored semi-physics-driven and semi-data-driven artificial neural network for electromagnetic full-wave inversion,” IEEE APS/URSI, Marina Bay Sands, Singapore, December 4-10, 2021.

  4. Feng Han, Yanjin Chen, Sijia Li, “A tailored convolutional neural network with the sensitivity matrix embedded inside for electromagnetic full-wave inversion,” The 2021 International Applied Computational Electromagnetics Society (ACES) Symposium, Chengdu, China, July 28-31, 2021.

  5. Feng Han, Yanjin Chen, Jiawen Li, Jianliang Zhuo, Qing Huo Liu, “Fast multiparametric electromagnetic full-wave inversion via solving contracting scattering data equations optimized by the 3-D MRF model,” The 2020 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization (NEMO), Hangzhou, China, December 7-9, 2020. (Invited)

  6. Feng Han, Jiawen Li, Yanjin Chen, Jianliang Zhuo, Qing Huo Liu, “Deterministic nonlinear electromagnetic inversion hybridized with unsupervised machine learning,” The 42nd PIERS, Xiamen, China, December 17-20, 2019. (Invited)

  7. Feng Han, Jiawen Li, Yanjin Chen, Qing Huo Liu, “Reconstruction of composite model parameters for 3-D microwave imaging of biaxial objects by BCGS- FFT and PSO,” The 42nd PIERS, Xiamen, China, December 17-20, 2019.

  8. Feng Han, Bingyang Liang, Jiawen Liu, Fanfan Liu, Gaopeng Lu, Qing Huo Liu, “Mid- and low-latitude ionospheric D region remote sensing by radio atmospherics-Part I: Forward modeling and field measurement validations,” The 15th National Radio Wave Propagation Annual Conference, Hefei, Anhui, China, October 17-19, 2019.

  9. Feng Han, Bingyang Liang, Jiawen Li, Feifan Liu, Gaopeng Lu, Qing Huo Liu, “Ionosphere D region remote Sensing by radio atmospherics,” IEEE APS/URSI, Atlanta, Georgia, U.S.A., July 7-12, 2019.

  10. Feng Han, Jiawen Li, Jianliang Zhuo, Yanjin Chen, Qing Huo Liu, “3-D electromagnetic inverse scattering by magneto-dielectric objects with arbitrary anisotropy in layered uniaxial media,” IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI), Atlanta, Georgia, U.S.A., July 7-12, 2019.

  11. Feng Han, Jianliang Zhuo, Yanhui Liu, Qing Huo Liu, “3-D scattering and inverse scattering for uniaxial anisotropic background media,” National Symposium on Electromagnetic Scattering and Inverse Scattering, Yan'an, Shaanxi, China, August 17-19, 2018.

  12. Feng Han, Jianliang Zhuo, Na Liu, Hai Liu, Qing Huo Liu, “Scattering and inverse scattering from anisotropic objects embedded in layered uniaxial media,” The 40th PIERS, Toyama, Japan, August 1-4, 2018. (Invited)

  13. Feng Han, Na Liu, Hai Liu, Qing Huo Liu, “On the computation of electromagnetic dyadic Green’s function in inhomogeneous forward and inverse scattering problems,” The 37th Progress in Electromagnetics Research Symposium (PIERS), Shanghai, China, August 8-11, 2016.

  14. Feng Han, Steven A. Cummer, “Midlatitude nighttime and daytime D region ionosphere variations measured from radio atmospherics,” AGU Fall Meeting, San Francisco, CA, U.S.A., December 13-17, 2010.

  15. Feng Han, Steven A. Cummer, “Midlatitude D region ionosphere remote sensing by broadband sferics,” CEDAR, Boulder, CO, U.S.A., June 20-25, 2010.

  16. Feng Han, Steven A. Cummer, “Lightning-induced D region disturbances detected by broadband VLF sferics,” American Geophysical Union (AGU) Fall Meeting, San Francisco, CA, U.S.A., December 14-18, 2009.

  17. Feng Han, Steven A. Cummer, “Midlatitude nighttime D region variability detected by broadband VLF sferics,” The 2nd International High Energy Particle Precipitation in the Atmosphere (HEPPA) Workshop, Boulder, CO, U.S.A., October 6-8, 2009.

  18. Feng Han, Steven A. Cummer, “Midlatitude D region variabilities detected by broadband VLF sferics,” The Coupling, Energetics, and Dynamics of Atmospheric Regions (CEDAR), Santa Fe, NM, U.S.A., June 28-July 2, 2009.