Analysis of 2.4 GHz Circular Patch Antenna on FR4 Substrate for Wi-Fi and Bluetooth: Exploring Reflection Coefficient, Gain, VSWR, and Current Density Characteristics

A metal patch is attached to one side of a dielectric substrate to create a small, planar antenna that is frequently employed in wireless communication applications. The advantages of circular patch antennas include their ease of production, low profile, and lightweight design. An antenna with a circular radiating metal patch is called a circular patch antenna and is most frequently employed in wireless communication systems. Design circular microstrip patch antennas for this study's FR4 substrate to analyse 2.4 GHz reflection coefficient, gain VSWR, and current distribution. The HFSS software was used to construct a circular patch antenna.