A miniaturized wideband and multi-band on-demand reconfigurable antenna for compact and portable devices

A miniaturized frequency reconfigurable CPW-fed antenna operating in the UWB, ISM, WiMAX, WLAN, Wi-Fi, C-band and 5G sub-6 GHz frequency bands is proposed here. The wideband CPW-fed triangular patch is made tunable to three triple-frequency bands on demand by connecting it to different serpentine stubs by using PIN diodes. The combination of triangular patch and serpentines introduced overall 8 number of operating bands (2.45, 3.05, 3.3, 4.1, 4.6, 5, 6 and 6.2 GHz) instead of a wideband (3.78-7.08 GHz) generated by triangular patch. The simulation results of the antenna are in good agreement with the measured results. The phenomena of miniaturization and multiband operation along with a wideband are compared with state-of-the-art antennas presented in the literature to highlight the significance and novelty of the proposed antenna. The proposed antenna has its applications in compact and portable devices operating at multiple frequency bands like, cellular phones, Tablets, Wi-Fi devices etc. (C) 2020 Elsevier GmbH. All rights reserved.