High gain couple feed multiband wearable antenna for 5G and sub‐6  GHz communications

Abstract

A multi-band, small, high gain, low specific absorption rate (SAR), and circularly polarized (CP) textile wearable antenna fed using aperture coupled technique is designed on two layers of denim (ε r ¼ 1:2, h = 0.787 mm as feeding layer) and felt (ε r ¼ 1:3, h = 1.5 mm as a resonating layer) textile substrates.

A Miniaturized Multi‐Frequency Wide‐Band Leaky Wave Button Antenna for ISM/5G Communications and WBAN Applications

“…The majority of the aforementioned on‐body antennas are constructed on textile substrates as well (Chahat et al., 2011; Elfergani et al., 2020; Iqbal et al., 2021; Saeidi & Karamzadeh, 2022; Smida et al., 2020; J. Tak et al., 2015; X. Y. Zhang et al., 2017). The textiles of the body would be folded and twisted in this case, changing the textile antenna’s resonance frequency, bandwidth, and radiation efficiency.…”