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Abstract
A compact quad-band microstrip antenna based on double-negative metamaterial (DNG-MTM) is proposed in this letter. To realize miniaturization and multi-band characteristics, a novel coplanar tri-band DNG-MTM unit, consisted of an epsilon negative (ENG) MTM and a mu negative (MNG) MTM, is firstly designed and employed as the antenna radiator. The antenna’s electrical dimension is 0.23λ0 × 0.37λ0, where λ0 is the free space wavelength at 3.5 GHz. The peak gain is 5.3, 6.3, 5.8, and 3.4 dBi and the radiation efficiency reaches 96%, 82%, 91% and 86% for 2.84–3.55 (22.2%), 6.6–7.18 (8.4%), 7.44–9.08 (19.9%), and 11.1–14.74 (28.2%) GHz, respectively. These four bands have effectively covered 5G (3.5-GHz), C-band, X-band, and Ku-band for satellite systems. The size of the proposed antenna has been reduced by about 55% in comparison to the traditional method.
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No potential conflict of interest was reported by the author(s).
Additional information
Notes on contributors
Chenyin Yu
Chenyin Yu is currently a PhD candidate with the Department of Communication Engineering in CUC. Her current research interests include circularly polarized antenna, metamaterials, and metasurface.
Shuhui Yang
Shuhui Yang was with Beijing Information and Science Technology University as a professor from 2003 to 2015. In 2015, he joined Communication University of China as a professor and the head of the Department of Communication Engineering. He is a senior member of the Chinese Institute of Electronics (CIE). His current research interests include MIMO antennas, filters, and metasurfaces.
Yinchao Chen
Yinchao Chen is a senior member of IEEE and a professor at University of South Carolina. He is one of co-authors or editors for three academic books and ten book chapters in electrical engineering and has published more than two hundred academic papers in international journals and conference proceedings. His current research interests include RF/microwave circuits, and integrated microstrip antennas.
Wensong Wang
Wensong Wang received the PhD degree from the Nanjing University of Aeronautics and Astronautics, Nanjing, China, in 2016. From 2013 to 2015, he was a Visiting Scholar with the University of South Carolina, Columbia, USA. In 2017, he joined Nanyang Technological University, Singapore, as a Research Fellow. His current research interests include RF/microwave components and systems, inter/intra-chip wireless interconnect, power wireless transfer, signal integrity, and rail non-destructive real-time.