International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 07 | July 2022
p-ISSN: 2395-0072
www.irjet.net
Design of a Wideband 8x8 MIMO Microstrip Patch Antenna for 5G Applications Kalpita B Velip1, Ameeta G Sinai Amonkar2 Student, Dept. of Electronics and Telecommunication Engineering, Goa Engineering college, Goa, India Professor, Dept. of Electronics and Telecommunication Engineering, Goa Engineering college, Goa, India ---------------------------------------------------------------------***--------------------------------------------------------------------1
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Abstract - In the Recent technology development most of
The microstrip slotted antennas are used for miniaturization, low profile, inexpensive, lightweight, simplicity, low profile and reproducibility.
the used antennas are low-profile antennas elements with Multi-Input Multi-Output (MIMO) antenna array is presented for 5G devices. The paper focusses on the system that can operate at a wideband range that covers 4.9–6.2 GHz. Desirable antenna wideband capability is obtained by introducing slots in the patch where the overall antenna size is (46.42 mm × 46.42 mm). The technique of band enhancement of creating slots in the antenna is used so far. The simulated results of the presented paper of MIMO antenna array show that in the achieved wide band, the proposed design can achieve good antenna performances, with isolation >16 and return loss <-11dB are calculated. The antenna gain and radiation pattern are demonstrated. The proposed Multi-Input Multi-Output (MIMO) antenna system presents small size, simple design and wider bandwidth. This MIMO antenna parameters have been studied with the HFSS software to obtain a better output.
By using open ended and closed ended slots band enhancement and compactness is achieved. It also helps in impedance matching, gain enhancement, isolation and for shifting the frequency at desired frequency. The reflection coefficients of the antenna design is evaluated to be less than −11 dB across 4.9–6.2 GHz, with isolation greater than 16 dB. The S parameters, radiation performances (radiation pattern, total efficiency and gain) are investigated. ANSYS HFSS is used to obtain the simulated results.
2. ANTENNNA DIMENSIONS The specific geometry that has been adapted in this paper for the antenna element can be seen in the figure shown below revealing the 8 element MIMO antenna array. The designed antenna uses FR-4 substrate with relative permittivity= 4.4 and loss tangent= 0.025 with the size 200 mm x 97 mm x 3 mm. The wideband (4.9–6.2 GHz) is obtained by introducing slots where the overall antenna size is (46.42 mm × 46.42 mm).
Key Words: wideband, MIMO antenna, microstrip patch antenna, 5G mobile communication
1.INTRODUCTION Mostly the antennas are single element and it is difficult to achieve higher gains and channel capacity. Few designs are array-based being fed through single excitation have approximately the same channel capacity. That is why the frequency channels are busy most of the time, which reduces the data rate. Moreover, the bandwidths are very low to accommodate the greater number of users. Therefore, it is inevitable to use the MlMO technique for 5G bands to accommodate a greater number of users and provide them with a suitable higher data rate and better throughput performance. Despite many desirable features, 5G has a serious low penetration power problem that signal fades away on the reaching to the receiver side from the transmitter side using one ante
Fig -1: Single element of the MIMO antenna system
1.2 Design Equations for Patch
In this paper, 8 x 8 antenna array with wide operating bandwidth that covers 4.9-6.2 GHz is proposed for 5G effective communication needed in 5G equipment. By multiplying the number of antenna elements at both the receiver and transmitter side, we can get a better data rate and channel capacity.
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