RADIALLY-DIRECTED MICROSTRIP PATCH ANTENNA FOR LIGHTWEIGHT MOBILE WIRELESS CONTROL

In the realm of wireless communication, the continuous evolution driven by the rapid advancements in information technology over the past few decades has led to an ever-growing reliance on various digital technologies such as WiFi, GSM, LTE, IoT, 5G, and mmWave for communication connectivity. This technological expansion finds significant application in the transportation sector, where smart and automated systems demand efficient communication for enhanced efficiency, safety, and reliability, encompassing both vehicle-infrastructure interactions and broadband services. However, this progress poses challenges encompassing security, spectrum utilization, energy efficiency, and communication infrastructure. The critical role of antennas in enabling radio wave-based communication is evident, necessitating compact, integrated, and polarization-responsive designs with substantial bandwidth and high gain. Here, the microstrip patch antenna emerges as a solution, offering attributes like favorable return loss, high efficiency, and directional radiation patterns. The design, at dimensions of 50 mm × 60 mm within a single-layer FR-4 PCB of 1.4 mm thickness, undergoes simulations using CST Studio. The resultant data includes current signal output, gain, radiation pattern, and parameters for potential design optimization. Simulation findings indicate a resonant frequency of 433 MHz with an S11 value of -40.727 dB, a VSWR value of 1.018 at 433 MHz, and an impedance of 50.05 ohms. The radiation pattern showcases elevated gain radially and diminished axial gain, indicating optimal signal transmission perpendicular to its axis. Additionally, the analysis of electric (E) and magnetic (H) fields offers insights into the antenna's radiation characteristics. This work addresses challenges in modern wireless communication, providing a promising microstrip patch antenna solution supported by quantitative simulations, heralding the prospect of enhanced wireless control and communication in lightweight mobile applications. © 2024 Penerbit UTM Press. All rights reserved.