Abstract—The microstrip patch antenna is commonly recognised for its diversity in term of achievable structures that make them appropriate to a wide variety of applications. The lightweight and compact size of the structure make these types of antennas suitable for use besides the microwave embedded circuits two more of their diverse benefits. In this paper, a modified design of the rectangular Microstrip Patch Antenna (MPA) beside edge feeding technique is simulated and optimised to cover a multi-band of the microwave frequency. The proposed antenna has been analysed based on the High-Frequency Structure Simulator (HFSS) using an FR-4 substrate. The introduced MPA design constitutes of a radiating patch from copper metal with a copper extension directly coupled to the lowest edge of the radiating patch via three stubs to covering three operating frequency bands: f₁= 6.19 GHz (6.13-6.26 GHz), f₂= 7.63 GHz (7.55-7.7 GHz), and f₃=10 GHz (9.3-10.82 GHz). Consequently, the obtained results of the modified antenna design show a good gain with S₁₁<10 dB in the previous operating frequency bands, which are suitable for most wireless communication applications.

Index Terms—Edge feeding technique, HFSS, Microstrip patch antennas, Microwave, Stubs

Cite: Hamzah M. Marhoon, Hussein A. Abdulnabi, and Yasin Yousif Al-Aboosi, "Designing and Analysing of a Modified Rectangular Microstrip Patch Antenna for Microwave Applications," Journal of Communications vol. 17, no. 8, pp. 668-674, August 2022. Doi: 10.12720/jcm.17.8.668-674

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