This article presents a microstrip line-fed multiband antenna featuring a hexagonal open loop and a partial ground structure. This antenna is designed for a range of wireless communication applications, and its capability to operate across multiple frequency bands is achieved by deforming the partial ground in a hairband-shaped way. This solves the problems of complicated designs and restricted bandwidth in the operating bands presented by existing approaches. A prototype is constructed out of FR4 material with \(\epsilon _{r}\) of 4.4 and height of 1.6 mm. According to the findings, the antenna has the capability to provide coverage for three distinct frequency bands, namely 1.94–3.16 GHz, 4.6–6.01 GHz, and 7.58–9.13 GHz. Additionally, it is able to generate five primary frequency points, which are 2.11 GHz, 2.87 GHz, 5.60 GHz, 7.89 GHz, and 8.68 GHz. The suggested radiator has a small footprint, measuring 0.273 \(\lambda _0\) \(\times \) 0.273 \(\lambda _0\) at its lowest resonant frequency. The validity of simulated outcomes is determined by experimentation. This antenna is capable of functioning on a number of different wireless technologies, including X-band applications, WLAN (2.4, 5.2, 5.8 GHz), Wi-Fi (2.4 GHz) and the 5 G unlicensed band (5.2–5.7 GHz). The recommended structure is low profile with modest footprint and straight forward to build. Moreover, it exhibits good radiation characteristics throughout the operating bandwidths, excellent impedance matching, and acceptable gain.
