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Design of a wide bandwidth and high gain wearable antenna based on nonuniform metasurface
Author(s) -
Gao Guoping,
Meng Huijia,
Geng Wenfei,
Zhang Benkai,
Dou Zhiheng,
Hu Bin
Publication year - 2021
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32937
Subject(s) - antenna gain , bandwidth (computing) , antenna factor , antenna measurement , antenna aperture , antenna efficiency , antenna (radio) , materials science , optics , electrical engineering , radiation pattern , optoelectronics , electronic engineering , physics , engineering , telecommunications
A metasurface (MS) antenna for the 5 GHz wireless local area network (WLAN) band is presented in this paper. The antenna is feed by a modified aperture‐coupled structure with an optimized rectangular nonuniform MS to widen the bandwidth and improve the gain. The proposed antenna has a thickness of 4 mm and occupies an area of 50 mm × 50 mm. The operating frequency range of the antenna is 4.72–6.19 GHz, covering the 5.15–5.825 GHz band used by the 5 GHz WLAN. The measured average gain is 7.23 dBi. The simulated specific absorption rate values under 1 g and 10 g standard are lower than the limitation of U.S. and European. Due to its simple structure, wide bandwidth and small size, the proposed MS antenna has great potential in the wearable applications.