一、个人简介
刘强，男，湖南大学电气与信息工程学院电子科学与技术系副教授、博士生导师。2014年博士毕业于北京邮电大学电子工程学院，获电子科学与技术专业博士学位；2017年新加坡国立大学访问****。近年来，围绕微波在无线通信、工业、医疗和国防应用，主要开展天线理论与技术、射频与微波电路系统方面的研究工作。目前担任IEEE Transactions on Antennas and Propagation、IEEE Antennas and Wireless Propagation Letters, IEEE Microwave and Wireless Components Letters等国际重点期刊的审稿人，主持装备发展部装备预研基金、国家自然科学基金、博士后特别资助等项目10余项，发表SCI论文20余篇，授权中国发明专利5项。



二、团队介绍与招生
本团队提供优良的科研条件，包括微波电路与天线测试平台、大功率微波测试平台、高功率微波测试与效应平台、平面印制电路和三维导波器件与系统的设计与制作平台。在国外与美国、新加坡、加拿大部分高校和研究机构，在国内与北京邮电大学、东南大学、电子科技大学、国防科技大学、中国航天、中国电科等单位建立了合作与交流，可为团队成员提供赴海内外开展长短期学术交流、联合培养博士、硕士研究生的机会。毕业生就业单位主要有华为、中兴、中国电科、中国航天、三大运营商等。本团队以电子科学与技术、电子信息专业培养博士研究生和硕士研究生，欢迎电子、通信、物理等相关专业本科生和研究生报考。
Email：lq_gfkd@126.com，lqxx1982@gmail.com；
Tel：**



三、研究方向
[1] 微带天线、圆极化天线、电磁涡旋天线
[2] 微波无源器件和有源电路
[3] 大功率微波电路与系统
[4] 高功率微波系统及效应
[5] 无线通信测量与电磁兼容



四、主持科研项目
[1] 装备发展部装备预研基金，2018/10---2020/12
[2] 国家自然科学基金，2016/01---2018/12
[3] 博士后科学基金特别资助，2017/07---2018/12
[4] 博士后科学基金面上项目，2016/07---2017/12



五、发表学术论文
[1]Guolin Li, Qiang Liu, Yongfeng Qiu, Guangxing Du, Pei Xiao, Zhu Liu, Gaosheng Li, A low standing-wave-ratio wideband mode-transducing antenna for high power microwaves, IEEE Transactions on Antennas and Propagation, 2020.
[2]Liu, Qiang; Chen, Zhining; Liu, Yuanan; Li, Fuhai; Chen, Yu; Mo, Zhiguang; “Circular polarization and mode reconfigurable wideband orbital angular momentum patch array antenna”, IEEE Transactions on Antennas and Propagation, Vol. 66, No. 4, Apr. 2018.
[3]Liu, Qiang; Chen, Zhining; Liu, Yuanan; Li, Chen; “Compact ultra-wideband circularly-polarized weakly coupled patch array antenna”, IEEE Transactions on Antennas and Propagation, Vol. 65, No. 4, pp. 2129-2134, Apr. 2017.
[4]Liu, Qiang; Shen, Junyu; Yin, Jungang; Liu, Hongli; Liu, Yuanan; “Compact 0.92/2.45 GHz dual-band directional circularly polarized microstrip antenna for handheld RFID reader applications”, IEEE Transactions on Antennas and Propagation, Vol. 63, No. 9, pp. 3849-3856 , Sep. 2015.
[5]Liu, Qiang; Shen, Junyu; Liu, Hongli; Liu, Yuanan; “Dual-band circularly-polarized unidirectional patch antenna for RFID reader applications”, IEEE Transactions on Antennas and Propagation, Vol. 62, No. 12, pp. 6428-6434, Dec. 2014.
[6]Liu, Qiang; Liu, Yuanan; Shen, Junyu; Li, Shulan; Yu, Cuiping; Lu, Yinghua; “Wideband single-layer 90° phase shifter using stepped impedance open stub and coupled-line with weak coupling”, IEEE Microwave and Wireless Components Letters, Vol. 24, No. 3, pp. 176-178, Mar. 2014.
[7]Liu, Qiang; Shen, Junyu; Liu, Hongli; Wu, Yongle; Su, Ming; Liu, Yuanan; “Low-cost compact circularly polarised directional antenna for universal UHF RFID handheld reader applications”, IEEE Antennas and Wireless Propagation Letters, Vol. 14, pp. 1326-1329, 2015.
[8]Liu, Qiang; Liu, Yuanan; Wu, Yongle; Su, Ming; Shen, Junyu; “Compact wideband circularly polarized patch antenna for CNSS applications”, IEEE Antennas and Wireless Propagation Letters, Vol. 12, pp. 1280-1283, 2013.
[9]Liu, Qiang; Liu, Hongli; Liu, Yuanan; “Compact ultra-wideband 90° phase shifter using short-circuited stub and weak coupled line”, Electronics Letters, Vol. 50, No. 20, pp. 1454–1455, Sep. 2014.
[10]Liu, Qiang; Liu, Yuanan; Wu, Yongle; Li, Shulan; Yu, Cuiping; “Design of a compact wideband circularly polarized microstrip antenna”, Microwave and Optical Technology Letters, Vol. 55, No. 11, pp. 2531-2536, Nov. 2013.
[11]Liu, Qiang; Liu, Yuanan; “A compact ultra-wideband quadrature hybrid based on coupled-line phase shifter and power divider”, Microwave and Optical Technology Letters, Vol. 57, No. 2, pp. 432–434, Feb. 2015.
[12]Liu, Qiang; Liu, Yuanan; “Design of UHF RFID reader antennas using coupled line power divider and narrow bandpass filter”, Applied Computational Electromagnetics Society Journal, Vol. 29, No. 8, pp. 568–575, Aug. 2014.
[13]Liu, Qiang; Li, Yong; Liu, Yuanan; “Novel wideband single-layer 90 degree phase shifter based on radial-stub and coupled-line”, Journal of Circuits, Systems, and Computers, Vol. 25, No. 12, 2016.
[14]Wu, Yongle; Liu, Qiang; Leung, Saiwing; Liu, Yuanan; Xue, Quan; “A novel planar impedance-transforming tight-coupling coupler and its applications to microstrip baluns”, IEEE transactions on components, packaging, and manufacturing technology, Vol. 4, No. 9, pp. 1480–1488, Sep. 2014.
[15]Wu, Yongle; Liu, Qiang; Shen, Junyu; Liu, Yuanan; “A novel wide-band hybrid coupler using coupled-line power divider and improved coupled-line phase shifter”, Journal of Electromagnetic Waves and Applications, Vol. 27, No. 3, pp. 1–11, Feb. 2013.
[16]Wu, Yongle; Liu, Qiang; Shen, Junyu; Liu, Yuanan; “Compact Wilkinson pass-band filtering power divider based on quarter-wavelength side-coupled ring”, Journal of circuits systems and computers, Vol. 23, No. 10, 2014.
[17]Shen, Junyu; Liu, Qiang; Wu, Yongle; Liu, Yuanan; Li, Shulan; Yu, Cuiping; Gan, Lin; “High-directivity single- and dual-band directional couplers based on substrate integrated coaxial line technology”, International Microwave Symposium (IMS), 2013.
[18]Wu, Yongle; Shen, Junyu; Liu, Qiang; Liang, Liming; Liu, Yuanan; “An asymmetric arbitrary branch-line coupler terminated by one group of complex impedances”, Journal of Electromagnetic Waves and Applications, Vol. 26, No. 8, pp. 1125–1137, 2012.
[19]He, Qing, Shen, Junyu; Liu, Qiang; Li, Jiuchao; Liang, Liming; “A simplified dual-band rat-race hybrid for arbitrary power division ratio with only single shunt stub”, Journal of Electromagnetic Waves and Applications, Vol. 27, No. 16, pp. 2101–2109, 2013.
[20]Xie, Chao; Yin, Jungang; Li, Xiang; Pang, Feng; Liu, Qiang; Yang, Jian; “An ultra-wideband dipole with a director as a feed for reflector antennas”, IEEE Antennas and Wireless Propagation Letters, Vol. 16, pp. 1341-1344, , 2017.
[21]Liu, Qiang; Li, Yong; Mo, Zhiguang; Liu, Yuanan; “Compact broadband circularly-polarized directional universal GNSS antenna with symmetric radiation pattern and stable near-zenith coverage”, IET Microwaves Antennas & Propagation, Nol. 11, No. 5, pp. 657-663, 2017.
[22]Chang Yujia, Liu Qiang, Tang Xianggan, Du Guangxing, Li Guolin, Cheng Dong, “Compact MIMO antenna with high isolation characteristic for UWB portable applications”, Microwave and Optical Technology Letters, 2020.
[23]李勇，刘强，陈宇，“低成本宽带90o巴伦的研究与设计”，微波学报，2017.
[24]常宇佳，刘强，李国林，杜广星，汤湘干，“一种新型宽带双频段圆极化RFID读写天线”，微波学报，2019.
[25]刘思奇，刘强，杨光，杜广星，李国林，程栋，“一种高滚降宽阻带的微带低通滤波器”，微波学报，2020.



六、中国发明专利
[1]基于耦合微带线耦合器的紧凑型宽带双圆极化贴片天线，2015.02，中国，7.3
[2]基于大功率应用的平面微带平衡到平衡的功率分配器，2014.12，中国，0.2
[3]集成平面阻抗匹配巴伦的射频识别近场天线，2014.09，中国，6.9
[4]一种天线，2017.11，中国，2.1
[5]一种天线，2019.02，中国，9.3