Volume 32 Issue 4
Jul.  2023
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WANG Zitong, WU Qi, SU Donglin, “A Novel Wideband Wilkinson Pulse Combiner with Enhanced Low Frequency Isolation,” Chinese Journal of Electronics, vol. 32, no. 4, pp. 683-691, 2023, doi: 10.23919/cje.2021.00.429
Citation: WANG Zitong, WU Qi, SU Donglin, “A Novel Wideband Wilkinson Pulse Combiner with Enhanced Low Frequency Isolation,” Chinese Journal of Electronics, vol. 32, no. 4, pp. 683-691, 2023, doi: 10.23919/cje.2021.00.429

A Novel Wideband Wilkinson Pulse Combiner with Enhanced Low Frequency Isolation

doi: 10.23919/cje.2021.00.429
Funds:  This work was supported by the National Natural Science Foundation of China (U2141230)
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  • Author Bio:

    Zitong WANG received the B.S. degree in electrical engineering from Beihang University, Beijing, China, in 2019. He is currently pursuing the Ph.D. degree at Beihang University, Beijing, China. His current research interests include theory of characteristic mode, antenna mode manipulation and design and electromagnetic compatibility problems. (Email: wangzt@buaa.edu.cn)

    Qi WU (corresponding author) received the B.S. degree from East China Normal University, Shanghai, China, and the Ph.D. degree from Shanghai Jiao Tong University, Shanghai, China, both in electrical engineering, in 2004 and 2009, respectively. He joined the Faculty of School of Electronics and Information Engineering, Beihang University, Beijing, China, in 2009, now he is a Full Professor. During 2011 and 2012, he was a Visiting Scholar in the Department of Electrical Engineering, University of California, Los Angeles, USA. During 2014 and 2016, he was an Alexander von Humboldt Fellow in the Institute of Electromagnetic Theory, Technical University of Hamburg, Germany. He has authored over 40 journal papers, two books, and holds 20 patents as the first inventor. His research interests include broadband antennas, computational electromagnetics, and related EMC topics. Dr. Wu received the Young Scientist Award from the International Union of Radio Science (URSI) in 2011, the Nominee Award for Excellent Doctoral Dissertation from the National Minister of Education in 2012, Young Scientist Award of APEMC in 2016, and Excellent Researcher from Chinese Institute of Electronics in 2020

    Donglin SU received the B.S., M.S., and Ph.D. degrees in electrical engineering from Beihang University (BUAA), Beijing, China, in 1983, 1986, and 1999, respectively. In 1986, she joined the Faculty of School of Electronics and Information Engineering, BUAA, where she was first an Assistant, then a Lecturer, later on an Associate Professor, and is currently a Full Professor. From 1996 to 1998, she was a Visiting Scholar with the Department of Electrical Engineering, University of California, Los Angeles, Los Angeles, CA, USA, under the BUAA-UCLA Joint Ph.D. Program. She has authored more than 100 papers and coauthored several books. Her research interests include the numerical methods for microwave and millimeter-wave integrated circuits and systematic electromagnetic compatibility design of various aircrafts. Dr. Su is a Member of the Chinese Academy of Engineering. She is a Fellow of the Chinese Institute of Electronics. She is the Chair of Beijing Chapter of the IEEE Antennas and Propagation Society and the Deputy Chair of the Antennas Society, Chinese Institute of Electronics. She was the recipient of the National Science and Technology Advancement Award of China in 2007 and 2012, and the National Technology Invention Award of China in 2018

  • Received Date: 2021-12-13
  • Accepted Date: 2022-03-28
  • Available Online: 2022-07-28
  • Publish Date: 2023-07-05
  • In this paper, a novel Wilkinson pulse combiner (WPC) is proposed for the combination of Gaussian pulse signals. The WPC requires a very wide bandwidth, small size and high port isolation. To improve the operating bandwidth, the design adopts the form of eight-section WPC. Eight capacitors are connected in series with the isolating resistors of each section. After capacitive loading, isolation between WPC input ports is significantly improved at low frequency. Consequently, the operating bandwidth of WPC has been increased from 13:1 to 31:1. Compared with the conventional Wilkinson combiner with the same bandwidth, the proposed WPC reduces the size by 40%. In addition, all the ports are well impedance matched and the insertion loss in the operating frequency band is less than 0.5 dB. To verify the feasibility of the design, a prototype was fabricated and measured. Experiment shows that the novel WPC is more advantageous to generate dual-Gaussian pulse signals.
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