Volume 33 Issue 2
Mar.  2024
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Yan ZHENG, Hanyu TIAN, Yuandan DONG, “Miniaturized, Wide Stopband Filter Based on Shielded Capacitively Loaded SIW Resonators,” Chinese Journal of Electronics, vol. 33, no. 2, pp. 456–462, 2024 doi: 10.23919/cje.2023.00.057
Citation: Yan ZHENG, Hanyu TIAN, Yuandan DONG, “Miniaturized, Wide Stopband Filter Based on Shielded Capacitively Loaded SIW Resonators,” Chinese Journal of Electronics, vol. 33, no. 2, pp. 456–462, 2024 doi: 10.23919/cje.2023.00.057

Miniaturized, Wide Stopband Filter Based on Shielded Capacitively Loaded SIW Resonators

doi: 10.23919/cje.2023.00.057
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  • Author Bio:

    Yan ZHENG received the B.E. degree in measurement and control technology and instrument from the Henan University, Kaifeng, in 2018, and the M.S. degree in electronics and communication engineering from the University of Electronic Science and Technology of China (UESTC), Chengdu, in 2022. She is currently pursuing the Ph.D. degree in electromagnetic field and microwave techniques at UESTC. Her research interests include the synthesis design of planar microwave, integrated passive device filters, and acoustic-wave filters for wireless communication applications. (Email: iszhengyan@163.com)

    Hanyu TIAN is currently pursuing the Ph.D. degree in electronic science and technology at the University of Electronic Science and Technology of China, Chengdu, China. His research interests include multifunctional filtering components, filtering power dividers, and the filter synthesis techniques. He was a recipient of the IEEE IWS Best Student Paper Award Finalist in 2021. (Email: hanyutian@std.uestc.edu.cn)

    Yuandan DONG received the B.S. and M.S. degrees from the Department of Radio Engineering, Southeast University, Nanjing, China, in 2006 and 2008, respectively, and the Ph.D. degree from the Department of Electrical Engineering, University of California at Los Angeles (UCLA), Los Angeles, CA, USA, in 2012. From September 2008 to June 2012, he was a Graduate Student Researcher with the Microwave Electronics Laboratory, UCLA. From September 2012 to February 2016, he was working as a Senior Engineer with the Research and Development Hardware Department, Qualcomm, San Diego, CA, USA. From February 2016 to December 2017, he was working as a Staff Engineer with Universal Electronics Inc., Santa Ana, CA, USA. Since December 2017, he has been a Full Professor with the University of Electronic Science and Technology of China (UESTC), Chengdu, China. He has authored or coauthored more than 260 journal articles and conference papers, which receive more than 5600 citations. He has been listed as an Elsevier highly cited researcher. He holds more than 100 patents including six international patents. He and his team have developed multiple RF products including acoustic wave filters, antenna tuners, and antennas, which are very widely shipped and applied in mobile devices. His research interests include the characterization and development of RF and microwave components, antennas, RF frontend modules, circuits, acoustic-wave filters, and metamaterials. Dr. Dong was a recipient of the Best Student Paper Award from 2010 IEEE Asia Pacific Microwave Conference (APMC) held in Yokohama, Japan, the Best Paper Award in 2021 and 2023 IEEE International Wireless Symposium (IWS), the Distinguished Expert Presented by Sichuan Province and by the national government, respectively, and the High Level Innovative and Entrepreneurial Talent presented by Jiangsu Province. He has been a TPC member for several international conferences. He has served as an Associate Editor for the IEEE Transactions on Antennas and Propagation since 2021. And he has served as a guest editor for IEEE Open Journal of Antennas and Propagation. He is also serving as a Reviewer for multiple IEEE and IET journals including the IEEE Transactions on Microwave Theory and Techniques and the IEEE Transactions on Antennas and Propagation. (Email: ydong@uestc.edu.cn)

  • Corresponding author: Email: ydong@uestc.edu.cn
  • Received Date: 2023-02-24
  • Accepted Date: 2023-06-05
  • Available Online: 2023-07-13
  • Publish Date: 2024-03-05
  • Based on the full-mode capacitively loaded substrate integrated waveguide (SIW) resonator and the miniaturized shielded half-mode capacitively loaded SIW (S-HMCSIW) cavities, a novel compact high-performance filter is proposed. The footprint of the half-mode SIW (HMSIW) is further reduced due to the application of the capacitive-loading technique. By applying cross coupling, the proposed SIW filter’s transmission zero enhances the stopband rejection and shows excellent selectivity. For the bandpass filter, the measured |S21| and |S11| are better than 1.09 dB and −14 dB, respectively. And a 3-dB fractional bandwidth (FBW) of 9.14–10.76 GHz (FBW=16.2%) is also observed. The filter achieves a wide stopband with a −20 dB out-of-band rejection up to 2.69f0 (f0 = 10 GHz), with a size of 0.39λg × 0.51λg only. Good agreement between measurement and simulation is obtained.
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