Abstract

This paper describes the design, simulation, and analysis of a new hexagonal lock-shaped microstrip patch antenna that operates at 2.4 GHz. It aims applications such as Wi-Fi, Bluetooth and Zigbee. The antenna shows a hexagonal radiating patch with a semi-circular loop element that looks like a padlock. It is made on a low-cost FR-4 substrate with a dielectric constant of 4.4. A 50-? microstrip transmission line feeds the antenna and includes a stepped impedance matching network. Simulation results from CST Studio Suite shows a return loss (S11) of -12.27 dB at 2.401 GHz and a Voltage Standing Wave Ratio (VSWR) of 1.64 at 2.401 GHz. Thus, showing good impedance matching and efficient power transfer to the radiating element. The compact design, with an overall size of about 30 mm × 30 mm, makes the antenna suitable for modern wireless communication devices.