European Journal of Molecular & Clinical Medicine

Now-a-days, the uses of antenna based devices are rapidly increasing. Among those antenna based devices mobile phones and Wi-Fi routers are the important modules which play the crucial role in every individual’s life. As the technologies & usage of it are rapidly increasing and to meet the satisfaction of the end users all the providers are looking to elaborate their signal strength and other parameters. So, as to increase the strength of the signal the antennas should be capable of meeting it. In this paper, we would like to present the Microstrip patch antenna design of parasitic slot structure with an operating frequency of 7.5 GHZ and comparison of some their parameters with the other antenna structures. For this design, we use high frequency simulation structure (HFSS) software; the antenna is based on the FR4_epoxy substrate with tangent lass of 0.0018 and dielectric constant of 4.4(approx.). After simulation, the performance characteristics such as return loss (S11), gain, directivity, radiation pattern, VSWR are recorded and compared also.

Over the past one decade, there is a rapid growth in the development of wireless communication applications. The performance of all such systems completely depends on the design of the antenna. Microstrip antennas are preferred for most of their applications. A low profile microstrip antenna with stable radiation pattern in a relatively wide band is presented for 5G operation. This paper presents a dual band rectangular microstrip patch antenna. This antenna is designed over an operating frequency of 3.48GHz (5G band) and 6.12GHz using the substrate material FR-4 which has a dielectric constant of 4.3. The design antenna can be used for 5G applications such as enhanced Mobile Broadband (eMBB), Massive 00machine type communication (IoT), Ultra reliable low latency communication. The designed antenna has low profile, low cost, easy fabrication and good isolation. The proposed antenna is designed for the purpose of aeronautical radio navigation and mobile satellite communication. The return loss of the proposed antenna is -26.26dB with a good total efficiency of -3.85dB. A prototype of the antenna was fabricated and achieved a good directivity gain of 3.21dBi with a VSWR of 1.1 at the resonant frequency. Experimental validation of technique is carried out and measured results were found to be comparable -with simulated results.