A new elliptical shape antenna design for the 5G wireless communication application

This paper presents a novel patch antenna design tailored for 5G wireless communication applications. The antenna was analyzed using the CST simulator for the 3.5 GHz frequency band. Prototypes were fabricated on various substrates: FR4, RO4003C and RT5880, which have relative permittivities of $4.3,3.55$, and 2.2, respectively. The simulation results detail the electrical and radiation characteristics of the proposed antenna. The reflection coefficient achieved a maximum value of -31 dB, while the gain reached up to 5.91 dB. A comparative analysis of the substrates indicated that the antenna designed on Roger RT5880 demonstrated superior performance, achieving an effectiveness of approximately $96 \%$, compared to $85 \%$ and $94\%$ for FR4 and RO4003C respectively.