Design of a Broadband Microstrip Patch Antenna Operating between 1.5 Ghz - 4.5 Ghz

Abstract

A printed circuit board-fabricated antenna is known as a microstrip patch antenna (MSA). It consists of a dielectric substrate that is encased in a ground plane on one side and a radiating patch on the other. A MSA's adaptability is enhanced by its small size, light weight, affordable production costs, simplicity of installation, etc. It can be examined using many antenna parameters, including the voltage standing wave ratio (VSWR), reciprocity, field areas, and S parameter. The Roger 3003 material (lossy) was used as the substrate in this work to create a rectangular broadband MSA with a bandwidth of 1.5 GHz to 4.5 GHz. A copper conductor with a thickness of 0.003 mm was used as the inset feed, and a gap of 1.00 mm existed between the patch and the inset feed. CST studio suite software was used to simulate this MSA and the results obtained were a reference impedance of 50 Ω; an S-Parameter of -10.75 dB and a farfield radiation pattern with a directivity of 2.34 dBi, -17.7 dBi and -37.7 dBi along the X, Y and Z axes respectively.