Design, Simulation and Analysis of a Microstrip Patch Antenna at 2.45 GHz Frequency for Wireless Application

Sikiru Olayinka Zakariyya; Vincentia Omowunmi Omole; Muibat Asabi Gbadamosi; Ayodele Joshua Adesina; Ayinla Ally Yeketi; Bashir Olaniyi Sadiq

Design, Simulation and Analysis of a Microstrip Patch Antenna at 2.45 GHz Frequency for Wireless Application

Sikiru Olayinka Zakariyya, Vincentia Omowunmi Omole, Muibat Asabi Gbadamosi, Ayodele Joshua Adesina, Ayinla Ally Yeketi, Bashir Olaniyi Sadiq

Abstract

This study presents the design and analysis of patch antenna suitable for S band applications. In CST Studio, the intended antenna was simulated. A variety of substrate materials were employed, including Roger RT duroid, Taconic TLP-5 and FR4 lossy. These substrates materials have a dielectric permittivity of 2.2, 2.2, and 4.3 respectively. Using the S-parmeter (S₁₁), Voltage Standing Wave Ratio (VSWR), antenna bandwith (BW), gain, directivity, and the antenna efficiency as performance parameters, the simulated antenna's performance was examined. According to the simulation results, the observed (S₁₁) value is -21.88 dB, -30.4 dB and -44.2 dB corresponding to FR4, RT-duroid and Taconic TLP-5 respectively. The BW of the designed antenna corresponding to FR4, RT-duroid and Taconic TLP-5 is 620 MHz, 391 MHz and 383 MHz respectively. The VSWR of 1.17, 1.06 and 1.07, a gain of 2.82 dB, 8.35 dB and 8.51 dB, a directivity of 7.45 dBi, 8.75 dBi, 8.74 dBi and an efficiency of 34.43%, 91.2% and 94.7% were all recorded for the designed antenna corresponding to FR4, RT-duroid and Taconic TLP-5 respectively. The outcomes from the proposed antenna outperformed the benchmarked work from the existing literatures in terms of S₁₁,BW, VSWR and the antenna gain

Keywords

Patch Antenna; Return loss; Substrate; VSWR; Wireless Communication

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