Design of Dual Band Microstrip Antenna Planner Array (1×2) for Wireless Applications
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Abstract
In this research, a (1x2) microstrip antenna array operating over a wide frequency range (3.564 – 8.796 GHz) has been designed, making it suitable for wireless communication applications such as WiMAX, WLAN, and emerging 5 G systems. The design was simulated using computer simulation technology (CST) Studio Suite 2021. The antenna employs a microstrip-line feeding technique, a direct feeding method. This technique is characterized by its ease of fabrication and substrate etching. Copper was used to design both the ground plane and the radiating patch, separated by an FR-4 lossy substrate with a dielectric constant of 4.3 and a thickness of 1.6 mm. The overall dimensions of the antenna are (85 × 38 × 1.6 mm). The results gained at the first frequency (3.564 GHz) are (4.670664 dB), and at the second frequency (8.796 GHz), they are (2.4549 dB). The directivity at the first frequency is (4.242 dB), and at the second frequency is (5.7148 dB). The efficiency at the first frequency is (86.9077 %), and at the second frequency it is (89.2244 %). The bandwidth at the first frequency is (0.7209 GHz), and at the second frequency, it is (0.5071 GHz). The return loss at the first frequency is (- -32.3959 dB), and at the second frequency, it is (- -32.0718 dB). At the first frequency, the voltage standing wave ratio is (1.0559), and at the second frequency, it is (1.0530). The current distribution at the first frequency is (43.2488 A/m), and at the second frequency, it is (46.8896 A/m). The results show that the design supports the wireless communication applications targeted in the research and is highly efficient.
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