RT Journal Article
T1 A metasurface-based single-layered compact AMC-backed dual-band antenna for off-body IoT devices
A1 Ahmad, Sarosh
A1 Paracha, Kashif Nisar
A1 Sheikh, Yawar Ali
A1 Ghaffar, Adnan
A1 Butt, Arslan Dawood
A1 Alibakhshikenari, Mohammad
A1 Soh, Ping Jack
A1 Khan, Salahuddin
A1 Falcone, Francisco
AB In this article, a compact printed monopole dual-band antenna using artificial magnetic conductor (AMC)-plane with improved gain and broader bandwidth, applicable for off-body internet of things (IoT) devices is presented. The monopole antenna consists of two C-shaped resonators connected through a U-shaped monopole, parasitic elements, discrete ground circular rings and a co-planar waveguide (CPW) feedline. Each artificial magnetic conductor (AMC) unit cell consists of a slotted circular and a square stubs, designed with two zero-crossing phases for improving the radiation characteristics and to achieve the high gain. The overall size of the proposed AMC-backed antenna is 44.4 mm ×44.4 mm ×1.6 mm with electrical dimensions of 0.75lambdag×0.75lambdag×0.027lambdag . This AMC-backed antenna featured measured bandwidths of 9.6% and 12.4% with improved measured gain values of 4.88 dB and 4.73 dB at 2.45 GHz and 5.8 GHz, respectively. The specific absorption rate (SAR) values are analysed and found to be 1.58 W/kg at 2.45 GHz and 0.9 W/kg at 5.8 GHz. Therefore, the proposed AMC-backed antenna is useful for off-body IoT devices operating at 2.45 and 5.8 GHz industrial, scientific, and medical (ISM) band applications.
PB IEEE
SN 2169-3536
YR 2021
FD 2021-11-23
LK https://hdl.handle.net/10016/33738
UL https://hdl.handle.net/10016/33738
LA eng
NO This work was supported in part by the Universidad Carlos III de Madrid; in part by the European Union's Horizon 2020 Research and Innovation Programme under Marie Sklodowska-Curie Grant 801538; in part by the Ministerio de Ciencia, Innovación y Universidades, Gobierno de España (MCIU/AEI/FEDER and UE) under Grant RTI2018-095499-B-C31; and in part by the Researchers Supporting Project, King Saud University, Riyadh, Saudi Arabia, under Project number RSP-2021/58.
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RD 19 may. 2024