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Abstract
A circularly polarized (CP) scanning phased array antenna based on circular polarizer is proposed. An efficient technique is developed to introduce the novel scheme of the designed patch antenna and circular polarizer, which are coupled with a small gap. The new approach of fission transmission of electromagnetic (FTEM) wave is developed to transform linear-to-circularly polarized waves. The designed structure is composed of a 2×8 double-layer array with a small gap, which enhances the wide-angle beam scanning capability of ± 20° with high gain at distinct frequencies. The axial ratio (AR) is below 3 dB and exhibits a 4.80% bandwidth from 5.14 GHz to 5.36 GHz with a 13 dBic maximum gain. This new concept is theoretically and experimentally investigated to evaluate the performance of the proposed structure. The proposed structure shows promising potential for applications in radar and satellite communication systems.
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Ghulam Fatima Kakepoto
Ghulam Fatima Kakepoto (M’76–SM’81–F’87) received MS degree in Physics from School of Physics, University of Electronics Science and Technology of China (UESTC). Currently, she is pursuing Ph.D in Radio Physics at University of Electronics Science & Technology, Chengdu, Sichuan, China. Her research interests included Electronics, Antenna and Propagation. She worked as Lecturer in the department of Physics at University of Agriculture and Engineering, Khairpur, Sindh, Pakistan.
Shao-Qiu Xiao
Shao-Qiu Xiao (M’05) received Ph.D. degree in Electromagnetic field and Microwave Engineering from the University of Electronic Science and Technology of China (UESTC), Chengdu, China, in 2003. From January 2004 to June 2004, he joined UESTC as an assistant professor. From July 2004 to March 2006, he worked for the Wireless Communications Laboratory, National Institute of Information and Communications Technology of Japan (NICT), Singapore, as a researcher with the focus on the planar antenna and smart antenna design and optimization. From July 2006 to June 2010, he worked for UESTC as an associate professor and now he is working for UESTC as a professor. His current research interests include planar antenna and phased array, microwave passive circuits and time reversal electromagnetics. He has authored/coauthored more than 160 technical journals, conference papers, books and book chapters.
Farman Ali Mangi
Farman Ali Mangi received PhD in the field of electronics science & technology from School of Physical Electronics, University of Electronics Science & Technology, Chengdu, Sichuan, China. His research interests included Electronics, Antenna and Propagation, LASER Atomic Spectroscopy and Material Physics. Currently, he is working as Professor in the department of Physics, Shah Abdul Latif University, Khairpur, Sindh, Pakistan. He received China Scholarship Council (CSC) excellent international student research award for the academic year 2015/2016 on dated 30 December 2015. He presented enough research papers in international conferences organized at Beijing, Shanghai, Shenzhen, Chengdu, Bangkok and Phuket. His research work is available on web of science, EI-Village, IEEE Explorer and published in reputed international journals of EI-Index and SCI (Springer and Elsevier) as well.