Design and Development of a Rectangular Patch Antenna with Edge-Cut Circular Slots Using the Inset Feed Technique

Abstract

The main topic of this paper is the design and analysis of a rectangular microstrip patch antenna with a hole in the substrate and material around it. The substrate used is Rogers RO3003 (lossy). The antenna operates at a frequency of 4.8 GHz, making it suitable for healthcare applications where efficient communication systems are crucial. The design incorporates a hole in the substrate, which is known to improve antenna performance by reducing its size, altering the radiation pattern, or enhancing the bandwidth. It's more difficult to understand how energy is lost when using the Rogers RO3003 lossy substrate, which has a dielectric constant of 3. This changes how well the antenna works overall. The antenna's operating frequency spans from 2 GHz to 12 GHz, providing a broad bandwidth range for diverse communication needs. The simulated radiation efficiency of the antenna was found to be -5.124 dB, which indicates some power loss due to the lossy nature of the substrate material. Despite this, the antenna demonstrated promising results in terms of bandwidth, gain, efficiency, and radiation pattern. We employed Computer Simulation Technology (CST) Studio Suite 2021 software to carry out the simulations, enabling accurate performance analysis. After careful consideration, the antenna design and testing using the Rogers RO3003 substrate material with a hole in it show good results. The simulation results suggest that this antenna design could be an effective solution for healthcare communication systems, offering a good balance between size reduction, performance, and efficiency.