Volume 33 Issue 2
Mar.  2024
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Article Contents
Qiang SUN, Yongling BAN, Jun HU, “A Wideband High-Gain Sawtooth Slot Array Antenna with Frequency-Scanning at Lower Frequency and Fixed-Beam at Higher Frequency,” Chinese Journal of Electronics, vol. 33, no. 2, pp. 463–471, 2024 doi: 10.23919/cje.2022.00.332
Citation: Qiang SUN, Yongling BAN, Jun HU, “A Wideband High-Gain Sawtooth Slot Array Antenna with Frequency-Scanning at Lower Frequency and Fixed-Beam at Higher Frequency,” Chinese Journal of Electronics, vol. 33, no. 2, pp. 463–471, 2024 doi: 10.23919/cje.2022.00.332

A Wideband High-Gain Sawtooth Slot Array Antenna with Frequency-Scanning at Lower Frequency and Fixed-Beam at Higher Frequency

doi: 10.23919/cje.2022.00.332
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  • Author Bio:

    Qiang SUN graduated from the North China University of Water Resources and Electric Power in 2017. He is currently pursuing the Ph.D. degree in electromagnetic field and microwave technology with the University of Electronic Science and Technology of China, Chengdu, China. His current research interests include millimeter wave antennas and arrays. (Email: sunqiang@std.uestc.edu.cn)

    Yongling BAN received the B.S. degree in mathematics from Shandong University, the M.S. degree in electromagnetics from Peking University, and the Ph.D. degree in microwave engineering from the University of Electronic Science and Technology of China (UESTC), in 2000, 2003, and 2006, respectively. In July of 2006, he joined the Xi’an Mechanical and Electric Information Institute as a microwave engineer. He then joined Huawei Technologies Co., Ltd., Shenzhen, China. At Huawei, he designed and implemented various terminal antennas for 15 data card and mobile phone products customized from leading telecommunication industries like Vodafone. From September 2010 to July 2016, he was an Associate Professor with UESTC and is currently Professor with UESTC. From May 2014 to April 2015, he visited Queen Mary University of London as a Scholar Visitor. His research interests include wideband antennas for 5G devices, MIMO antenna, and millimeter wave antenna array. He is the author of over 130 referred journal and conference papers on these topics. Prof. Ban holds 20 granted and pending chinese and overseas patents. (Email: byl@uestc.edu.cn)

    Jun HU received the B.S., M.S., and Ph.D. degrees in electromagnetic field and microwave technique from the University of Electronic Science and Technology of China (UESTC), Chengdu, China, in 1995, 1998, and 2000, respectively. In 2001, he was with the Center of Wireless Communication, City University of Hong Kong, Hong Kong, as a Research Assistant. From March to August 2010, he was a Visiting Scholar with the Electro Science Laboratory, Department of Electrical and Computer Engineering, The Ohio State University. He was a Visiting Professor with the City University of Hong Kong from February to March 2011. He is currently a Full Professor with the School of Electronic Science and Engineering, UESTC. Since September 2017, he has been the Vice President of UESTC. He is the author or the coauthor of over 300 technical articles. His current research interests include integral equation methods in computational electromagnetics, electromagnetic scattering, and radiation. Dr. Hu received the 2004 Best Young Scholar Paper Prize of the Chinese Radio Propagation Society, the 2014 National Excellent Youth Fund by the NSFC, the Chang Jing Scholar in 2016, and many best student papers awards. He was a co-recipient of the 2018 IEEE AP-S Sergei A. Schelkunoff Transaction Paper Award. He also served as the Chairman for the Student Activities Committee, IEEE Chengdu Section, from 2010 to 2016, and the IEEE Chengdu AP/EMC Joint Chapter from 2014 to 2016. (Email: hujun@uestc.edu.cn)

  • Corresponding author: Email: byl@uestc.edu.cn
  • Received Date: 2022-09-30
  • Accepted Date: 2023-03-21
  • Available Online: 2023-03-22
  • Publish Date: 2024-03-05
  • Exploring the multifunctional array antenna suitable for complex communication environment has very important research value. In this paper, a millimeter wave (mm-wave) double longitudinal sawtooth slot array antenna (DLSA) based on substrate integrated waveguide (SIW) technology is proposed, which has wideband, high-gain and novel beam characteristics. Two irregular longitudinal slots are etched on the SIW conductor surface as the radiation structure. To improve the bandwidth of the DLSA, the metallized vias are added at the transition point of the slots to construct multiple resonant frequency points. By adjusting the size of the slots and the position of the metallized vias, the phase constant can be regulated, and the unusual beam characteristics can be obtained. That is to say, in the lower frequency band, the beam pointing angle increases with frequency. In the higher frequency band, the beam pointing angle is maintained at a fixed angle. Finally, to improve the antenna gain, a 16 × 8 DLSA is fabricated, measured and discussed. The proposed antenna has an impedance matching bandwidth close to 9.7 GHz. From 27 to 33 GHz, the beam pointing angle changes from 8° to 29°. From 33 to 37 GHz, the beam pointing angle is fixed at 29°, and the pointing angle error range is ±1°. In addition, the measured maximum gain is 22.9 dBi at 32 GHz.
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