Abstract
This paper presents the design of a dual-band circular patch antenna for the application requirements of wireless handheld devices and various wireless sensor modules operating in WiMax and 5G NR Bands. The design originated from a single-band conventional circular patch antenna and ended up with a dual-band circular patch. A novel hexagon-shaped slot was preferred to achieve dual-band performance in the circular patch antenna. The simulation level performance of the antenna is verified using the Advanced Design System 2019 tool. An FR4 material with a height of 1.6 mm is selected as a substrate for the patch antennas. The return loss and radiation pattern behaviour of the patch antennas are measured using a network analyser and an anechoic chamber. The fabricated prototype achieves dual-band performance at 3.47 and 6.96 GHz. Simulated and measured results show that the proposed hexagonal-shaped slot in the circular patch provides a dual-band behaviour.