Stepped Cylindrical Antenna with a Higher-Order Mode Ring Patch for Wideband Conical Radiation Pattern

Abstract

A stepped cylindrical antenna with a higher-order mode ring patch for wideband conical radiation pattern is proposed. To accomplish a low profile with wideband conical radiation characteristics, a stepped cylindrical monopole and a TM41higher-order mode ring patch with four shorting pins are utilized. The proposed antenna has a monopole-like radiation pattern with a wide 10-dB return loss bandwidth of 11 GHz (2 GHz–13 GHz). It can cover various wireless services, such as wireless broadband (WiBro; 2.3 GHz–2.39 GHz), wireless local area networks (WLAN; 2.4 GHz–2.484 GHz, 5.15 GHz–5.35 GHz, and 5.725 GHz–5.875 GHz), digital multimedia broadcasting (DMB; 2.63 GHz–2.655 GHz), and ultra wideband (UWB; 3.1 GHz–10.6 GHz). The antenna has a height of only 0.12λ0at 2 GHz.

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.…”

“…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;Smida et al, 2020;J. Tak et al, 2015;X.…”