[38] Z. Bian, Y. Cao, and S. Yan, “V-Band Low-Cost and Low-Profile 2-D Scanning Antenna Based on Modified Rotman Lens,” IEEE Antennas Wireless Propag. Lett., 2025, Early Access.

[37] H. Ren, Y. Cao, J. Chen, and S. Yan, “An Alternative Sub-Structure Characteristic Mode Formulation for Slot Antennas,” IEEE Trans. Antennas Propag., 2025, Early Access.

[36] M. Chen, L. Chang, Y. Cao, S. Yan, and A. Zhang, “Simultaneous Enhancements of Bandwidth and Isolation of Frame Monopoles Utilizing Elongated Back Cover Patches for Smartphones,” IEEE Trans. Antennas Propag., 2025, Early Access.

[35] H. Ren, B. Wang, Y. Cao, J. Li, and S. Yan, “Design of a Dual-Fed Triple-Band Circularly Polarized Microstrip Patch Antenna Using Substructure Characteristic Mode,” IEEE Antennas Wireless Propag. Lett., vol. 24, no. 9, pp. 3089–3093, Sep. 2025.

[34] B. Chi, Z. Lai, S. Wu, Y. Cao, and J. Li, “A 3D-Printed S-Band Corrugated Horn Antenna with X-Band RCS Reduction,” Appl. Sci., vol. 15, no. 22, p. 11921, 2025

[33] H. Ren, Y. Cao, C. Niu, J. Chen, and S. Yan, “A Novel Decoupling Technique for Two Patch Antennas Using Two Pairs of Characteristic Modes,” IEEE Antennas Wireless Propag. Lett., vol. 24, no. 8, pp. 2602–2606, Aug. 2025.

[32] K. Zhang, C. Du, Y. Cao, S. Yan, and D. Zhou, “Via-Free Dual-Polarized Angle-Selective Surface,” IEEE Antennas Wireless Propag. Lett., vol. 24, no. 8, pp. 2317–2321, Aug. 2025.

[31] Y. Cao, S. Wu, J. Zhang, J. Li, and S. Yan, “Compact 2-D Passive Beam-Scanning Multibeam Antenna Based on Rotman Lens and Mechanical Sweeping Phase Gradient Metasurface,” IEEE Trans. Antennas Propag., vol. 73, no. 7, pp. 4993–4998, Jul. 2025.

[30] S. Wu, J. Li, J. Yao, Y. Cao, and K.-D. Xu, “A Sequential Rotation Filtering Network for High Circular Polarization Purity Antenna Array,” IEEE Microw. Wireless Technol. Lett., vol. 35, no. 4, pp. 428–431, Apr. 2025.

[29] P. Lu, J. Gong, X. Liu, Y. Cao, A. Zhang, and S. Yan, "ITO Meta-Absorber-Loaded Conformal UHF Monopole Antenna with Wide-Angel RCS Reduction," Materials, vol. 18, no. 6, pp. 1379-1389, 2025.

[28] J. Li, S. Wu, Z. Li, Y. Cao*, and K.-D. Xu, “3D-Printed OAM Beam Generator with Enhanced Out-Of-Band Gain Filtering Characteristic,” Opt. Express, vol. 32, no. 26, pp. 47285-47295, Dec. 2024.

[27] S. Wu, J. Li, J. Yao, Y. Cao, and S. Yan, “3D Printed Millimeter-Wave Filtering Monopulse Comparator for Dual-Circularly Polarized Antenna,” IEEE Antennas Wireless Propag. Lett., vol. 23, no. 12, pp. 4797-4801, Dec. 2024.

[26] S. Wu, J. Li, J. Yao, Y. Cao, Y. Li, and X. Y. Zhang, “3-D-Printed Ka-Band Circularly Polarized Monopulse Antenna Array With High Gain and Low Axial Ratio,” IEEE Trans. Antennas Propag., vol. 72, no. 11, pp. 8282–8293, Nov. 2024. (获APS热点论文)

[25] X. Liu, Y. Cao, J. Li, and S. Yan, “Negative Cable Effect Shield Omnidirectional Antenna Based on Radiation Pattern Synthesis,” IEEE Antennas Wireless Propag. Lett., vol. 23, no. 10, pp. 3143–3147, Oct. 2024.

[24] D. Wang, K.-D. Xu, Y. Cao, C. Guo, and S. Yan, “A Butler Matrix-Based Multibeam W-Band Slot Antenna Array Fabricated by Metal Additive Manufacturing Technology,” IEEE Trans. Antennas Propag., vol. 72, no. 6, pp. 5349–5354, Jun. 2024.

[23] J. Li, S. Wu, Z. Li, Y. Cao, and S. Yan, “Robust broadband dual-polarized rectenna with high conversion efficiency,” AEU - Int. J. Electron. Commun., vol. 179, p. 155294, May 2024.

[22] S. Wu, J. Li, J. Wang, Y. Cao, and H. Zhou, “Millimeter-Wave 3D-Printed Filtering Power Divider with High Frequency Selectivity and Enhanced Heat Dispersion,” AEU - Int. J. Electron. Commun., vol. 177, no. 1, p. 55200, Apr. 2024.

[21] J. Li, S. Wu, Y. Cao, X. Chen, Y. Li, and X. Zhang, “SLM Printed Millimeter-Wave Multibeam Antenna Array Based on Filtering Butler Matrix,” IEEE Trans. Antennas Propag., vol. 72, no. 4, pp. 3813 - 3818, Apr. 2024.

[20] Y. Cao, J. Zhang, Z. Yang, S. Wu, J. Li, and S. Yan, “Gain and Mode Purity Filtering Dual Polarized OAM Beam Generation Using Cavity Waveguide-based 3D Transmitarray,” J. Phys. D: Appl. Phys., vol. 57, no. 24, pp. 245101, Mar. 2024.

[19] W. Liu, Y. Cao, J. Chen, and S. Yan, “Design of a Low-Profile Dual-Band Shared-Aperture Circularly Polarized Phased Array,” IEEE Antennas Wireless Propag. Lett., vol. 23, no. 2, pp. 543-547, Feb. 2024.

[18] Y. Cao, W. Wu, S. Wu, J. Li, and S. Yan, “Cavity-Filter-Based 3-D-Printed Gain-Filtering Transmitarray for Multibeam Applications,” IEEE Trans. Antennas Propag., vol. 71, no. 12, pp. 9685-9695, Dec. 2023.

[17] 周子源, 曹元熙, 闫森. 基于圆极化漏波阵的罗特曼透镜多波束天线设计. 空间电子技术, 20.04(2023): 77-83.

[16] 吴思凡, 李建星, 曹元熙, 闫森, 陈娟. 一种Ka波段高增益磁电偶极子滤波阵列天线设计. 无线电工程, 53.08(2023): 1752-1759.

[15] P. Feng, B. Huang, Y. Cao, J. Chen, and S. Yan, “A Novel Compact Broadband SIW Six-Port Junction for Angle-of-Arrival Applications,” IEEE Trans. Instrum. Meas., vol. 72, pp. 1-8, 2023, Art. no. 8003308.

[14] Y. Cao, S. Yan, W. Liu, and J. Li, “A Wideband Multi-Beam Pillbox Antenna Based on Differentially Fed Leaky-Wave Array,” IEEE Antennas Wireless Propag. Lett., vol. 22, no. 3, pp. 512-516, Mar. 2023.

[13] Y. Cao, S. Yan, S. Wu, and J. Li, “3D Printed Multi-Beam OAM Antenna Based On Quasi-Optical Beamforming Network,” IEEE/OSA J. Lightw. Technol., vol. 41, no. 7, pp. 2196-2204, 1 Apr. 2023.

[12] Y. Cao, S. Yan, and J. Chen, “A SIW Pillbox based Compact Dual-Polarized Multi-Beam Antenna with 2-D Beam Scanning Capability,” IEEE Trans. Circuits Syst. II, Exp. Briefs., vol. 70, no. 1, pp. 116-120, Jan. 2023.

[11] 吴思凡, 李建星, 曹元熙, 闫森, 陈娟. 一种Ka波段集成化滤波功分器设计.无线电工程. 52.11(2022):2081-2086.

[10] Y. Cao, S. Yan, W. Liu, and J. Li, “Generation of Multi-OAM Beams Using Compact Dual-Mode Source and 3D-Printed Luneburg Lens,” Opt. Express., vol. 30, no. 23, pp. 41181-41195, Nov. 2022.

[9] W. Wu, B. Liu, P. He, W. Wen, H. Yang, Y. Cao, A. Zhang, and C. Guo, “A W-Band GSG Probe Fabricated by Metal Additive Manufacturing,” IEEE Trans. Instrum. Meas., vol. 71, pp. 1-10, 2022, Art. no. 8006610.

[8] S. Wu, J. Li, Y. Cao, S. Yan, K. Xu, and H. Luyen, “Three-Dimensional Printed, Dual-Band, Dual-Circularly Polarized Antenna Array Using Gap Waveguide Technology,” Appl. Sci., vol. 12, no. 21, p. 10704, Oct. 2022.

[7] Y. Cao, G. A. E. Vandenbosch, and S. Yan, “Low-Profile Dual-Polarized Multi-Beam Antenna Based on Pillbox Reflector and 3D-Printed Ridged Waveguide,” IEEE Trans. Antennas Propag., vol. 70, no. 9, pp. 7578-7591, Sep. 2022. (获APS热点论文)

[6] Y. Cao, S. Yan, J. Li, and J. Chen, “A Pillbox Based Dual Circularly-Polarized Millimeter-Wave Multi-Beam Antenna for Future Vehicular Radar Applications,” IEEE Trans. Veh. Technol., vol. 71, no. 7, pp. 7095-7103, Jul. 2022.

[5] Y. Cao, P. Feng, and S. Yan, “Design of a Pattern Reconfigurable Antenna for Wide-Angle Scanning Phased Array Applications,” Microw. Opt. Technol. Lett., vol. 64, no. 5, pp. 953-961, May. 2022. (获MOTL年度高下载论文)

[4] 曹元熙, 李建星, 闫森. 基于电调超表面及柱面反射面的相控阵天线设计. 无线电工程. 52.02(2022):303-308.

[3] Y. Cao and S. Yan, “A Dual-Mode SIW Compact Monopulse Comparator for Sum and Difference Multibeam Radar Applications,” IEEE Microw. Wireless Compon. Lett., vol. 32, no. 1, pp. 41-44, Jan. 2022.

[2] Y. Cao and S. Yan, “A Low-Profile High-Gain Multi-Beam Antenna Based on 3D-Printed Cylindrical Luneburg Lens,” Microw. Opt. Technol. Lett., vol. 63, no. 7, pp. 1965-1971, Jul. 2021. (获MOTL年度高下载论文)

[1] Y. Cao and S. Yan, “Multi-Beam SIW Leaky-Wave Antenna with 2-D Beam Scanning Capability for Millimeter-Wave Radar Applications,” Int. J. RF Microw. Comput. Aided Eng., vol. 31, no. 5, p. e22600, May. 2021. (获MMCE年度高引论文)

[33] Y. Cao, W. Hou, J. Gao, S. Wu, and S. Yan, “Sub-THz 2-D beam scanning SSPP leaky-wave antenna based on series feeding network,” 2025 18th IEEE United Conf. Millimeter Waves Terahertz Technol. (UCMMT), Nanjing, China, 2025.

[32] Z. Bian, Y. Cao, and S. Yan, “A two-dimensional scanning antenna based on metamaterial Luneburg lens in terahertz band,” 2025 Photonics Electromagn. Res. Symp.-Spring (PIERS-Spring), Abu Dhabi, UAE, 2025.

[31] Z. Lai, K. Zhang, D. Cui, S. Wu, Y. Cao, and J. Li, “All-metal S-band antenna array with RCS reduction in the X-band,” 2025 Int. Conf. Microwave Millimeter-Wave Technol. (ICMMT), Xi’an, China, 2025.

[30] Y. Cao, M. Zheng, S. Wu, J. Li, and S. Yan, “2-D beam scanning multi-beam antenna based on Rotman lens and mechanical sweeping metasurface,” 2025 Int. Conf. Microwave Millimeter-Wave Technol. (ICMMT), Xi’an, China, 2025.

[29] W. Wu, Q. He, Y. Zhe, C. Lu, Q. Sun, Q. Sun, and Y. Cao, “A compact dual-polarized antenna for dielectric logging instruments,” 2025 IEEE MTT-S Int. Wireless Symp. (IWS), Xi’an, China, 2025.

[28] W. Wu, Q. He, Y. Zhe, C. Lu, Q. Sun, Q. Sun, and Y. Cao, “A dual-polarized multi-spacing antenna array for dielectric logging,” 2025 IEEE MTT-S Int. Wireless Symp. (IWS), Xi’an, China, 2025.

[27] W. Hou, Y. Cao, J. Gao, C. Guo, and S. Yan, “Multi-beam Luneburg antenna design for THz applications,” 2025 IEEE Int. Workshop Electromagn.: Appl. Student Innovation Competition (iWEM), Hong Kong, 2025.

[26] Y. Cao, W. Hou, J. Gao, S. Wu, J. Li, and S. Yan, “THz multi-frequency-scanning-beam antenna based on copper additive manufacturing,” 2025 IEEE Int. Workshop Electromagn.: Appl. Student Innovation Competition (iWEM), Hong Kong, 2025.

[25] Y. Wen, J. Li, S. Wu, and Y. Cao, “Millimeter wave all-metal leaky-wave antenna with wide-angle beam scanning range,” 2025 IEEE Int. Workshop Radio Freq. Antenna Technol. (iWRF&AT), Shenzhen, China, 2025.

[24] W. Zhang, Y. Cao, S. Yan and J. Li. Planar Conical Beam Leaky-Wave Antenna with High Scanning Rate and Out-of-Roundness. 2024 IEEE 10th International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (MAPE), Guangzhou, China, 2024.

[23] X. Liu, Y. Cao, P. Lu, and S. Yan. An Ultra-Wideband Omni-directional Antenna Works in the VHF and UHF Frequency. 2024 Proc. International Applied Computational Electromagnetics Society Symposium (ACES-China), Xi'an, China, 2024.

[22] S. Yan and Y. Cao. Design of Phased Array Antenna Based on Electronically Reconfigurable Metasurface and Cylindrical Reflector. 2024 Proc. IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI), Firenze, Italy, 2024.

[21] Y. Cao, S. Yan, and J. Zhang. A Compact High-gain Rotman Lens Multibeam Antenna with Low Crossover Level and Sidelobe. 2024 Proc. Photonics & Electromagnetics Research Symposium (PIERS), Chengdu, China, 2024.

[20] D. Wang, Y. Cao, C. Guo, K.-D. Xu, and S. Yan. A Butler Matrix Based Multi-beam Antenna Array Fed by GSG Probe in W-band. 2024 Proc. Photonics & Electromagnetics Research Symposium (PIERS), Chengdu, China, 2024.

[19] W. Zhang, Y. Cao, J. Li, S. Yan, and J. Chen. Conical Beam Scanning Antenna Based on Leaky Wave Antenna Technology. 2024 Proc. Photonics & Electromagnetics Research Symposium (PIERS), Chengdu, China, 2024.

[18] S. Wu, J. Li, W. He, Y. Cao, S. Yan, and J. Chen. A Ka-Band All-Metal Multibeam Antenna Array Fed by Filtering Butler Matrix. 2023 Proc. IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP), Chengdu, China, 2023.

[17] Y. Cao, Y. Chen, S. Yan. Pillbox Reflector based Low-Profile Millimeter-Wave Shared Aperture Dual-Polarized Multi-Beam Antenna. 2023 International Conference on Microwave and Millimeter Wave Technology (ICMMT), Qingdao, China, 2023.

[16] S. Wu, J. Li, W. He, Y. Cao, S. Yan, J. Chen. A Ka-Band All-Metal Multibeam Antenna Array Fed by Filtering Butler Matrix. 2023 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP), Chengdu, China, 2023.

[15] Y. Cao, S. Yan, J. Li, J. Chen. Design of a Pillbox Reflector based Millimeter-Wave Multi-beam OAM antenna. 2023 XXXVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), Sapporo, Japan, 2023.

[14] Y. Cao, S. Yan, J. Chen. Design of A Pattern Reconfigurable Antenna for Grating Lobe Reduction of Planar Phased Arrays. 2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT), Harbin, China, 2022.

[13] S. Wu, J. Li, K. D Xu. S. Yan, Y. Li, Y. Cao, J. Chen. A High Gain Millimeter-Wave Magnetoelectric Dipole Antenna Array Fed by Filtering Divider. 2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT), Harbin, China, 2022.

[12] Z. Zhou, Y. Cao, Sen Yan. A Circularly Polarized Multi-Beam Antenna Based on SIW Pillbox Beamforming Network. 2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT), Harbin, China, 2022.

[11] J. Zhang, Y. Cao, Sen Yan. Broadband RCS Reduction of an Ultrawideband Blade Antenna Using Phase Gradient Metasurface. 2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT), Harbin, China, 2022.

[10] S. Wu, J. Li, J. Shi. Y. Cao, S. Yan, J. Chen. Dual-band dual-circularly polarized shared-aperture mm-wave antenna. 2022 IEEE 5th International Conference on Electronic Information and Communication Technology (ICEICT), Hefei, China, 2022.

[9] D. Wang, Y. Cao, C. Guo, S. Yan. A Micro-Machined Butler Matrix Beamforming Network Based Multi-Beam Patch Antenna Array. 2021 Computing, Communications and IoT Applications (ComComAp), Shenzhen, China, 2021.

[8] Y. Cao, S. Yan. A Low-Profile High-Gain Multi-Beam Antenna Based on Cylindrical Metasurface Luneburg Lens. 2021 Computing, Communications and IoT Applications (ComComAp), Shenzhen, China, 2021.

[7] 闫森, 曹元熙, 基于抛物柱面的毫米波双极化多波束天线. 2021年全国天线年会.

[6] M. Shu, W. Liu, J. Li, Y Cao, C Guo, A. Zhang. W-Band Waveguide Slot Array Antenna with High Gain Based on Rectangular Micro-Coaxial Process. 2021 IEEE 4th International Conference on Electronic Information and Communication Technology (ICEICT), Xi'an, China, 2021

[5] Z. Zhou, Y. Cao, Sen Yan. A Compact Multi-beam Antenna based on Multilayered SIW Pillbox. 2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT), Nanjing, China, 2021.

[4] J. Zhang, Y. Cao, Sen Yan. A Low-profile, Vertically Polarized Antenna for VHF and UHF Applications. 2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT), Nanjing, China, 2021.

[3] H. Zhu, Y. Cao, Gao Wei. Study on non-uniform meta-surface for antenna design. 2018 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC), Qingdao, China, 2018.

[2] H. Zhu, Y. Cao, C Ding, Gao Wei, J. Guo. Main Beam Manipulation of Patch Antenna Using Non-uniform Meta-surface. 2018 International Symposium on Antennas and Propagation (ISAP), Busan, Korea (South), 2018.

[1] Y. Cao, G. Wei. Circular Slot Vivaldi Antenna with Low Backlobe. 2018 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), Xuzhou, China, 2018.