Open AccessMicrostrip monopole antenna with a novel UC‐EBG for 2.4 GHz WBAN applications
Author(s) -
Gao Guoping,
Zhang Ruifeng,
Yang Chen,
Meng Huijia,
Geng Wenfei,
Hu Bin
Publication year - 2019
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2019.0271
Subject(s) - specific absorption rate , monopole antenna , antenna (radio) , body area network , wireless , microstrip , metamaterial , antenna efficiency , radiation pattern , physics , optoelectronics , acoustics , electrical engineering , optics , electronic engineering , computer science , telecommunications , engineering
A microstrip monopole antenna backed with a novel uniplanar compact electromagnetic bandgap (UC‐EBG) structure for 2.4 GHz wireless body area network applications is proposed here. The proposed antenna has a size reduction of 50% when the number of EBG array is optimised from 3 × 4 to 2× 3, while the radiation performance is almost invariable at the same time. The operating frequency band under different conditions has the capability of covering the 2.4–2.4835 GHz industrial, scientific, and medical band. Due to the addition of 2×3 UC‐EBG on the back, the radiation patterns become unidirectional, and the measured average gain increases from 2.1 to 5.6 dB. Meanwhile, the cross‐polarisation of the monopole antenna can be suppressed prominently by the EBG array. The simulated specific absorption rate values are 0.0536 W/kg under 1 g standard and 0.0296 W/kg under 10 g standard, which are far below the limitation of USA and Europe. These results can manifest the reliable wearable performance of the proposed antenna.