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Thinned 8 × 8 Planar Antenna Array with Reduced Side Lobe Levels for 5G Applications

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Abstract

The purpose of this work is to investigate three antenna designs using the main element that provides radiation pattern with diminish side lobes and high gain of interest for the fifth generation. Antenna designs comprises: (1) fully filled 8 × 8 planar array (2) optimized thinned planar array and (3) optimized tapered planar array. The main motive is to inactive a few number of elements of a fully filled 8 × 8 array while keeping the gain and return loss undisturbed ensuring the high reduction in sidelobe levels. GA (Genetic Algorithm) is tested to estimate the optimized amalgamation of inactive and active elements corresponding to reduce sidelobe levels. Optimization techniques such as the Thinning and Tapering of the planar array are considered in this study. The performances of all three types of optimized planar antenna arrays which are designed on RT/Duroid 5880 dielectric are investigated through a finite element study using CST MW Studio ver.2018 software operating at the desired 28 GHz frequency. By comparing with a fully filled planar array of equal size, the simulation results unveil that optimized thinned and tapered planar arrays show better performance in terms of future generation aspects.

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Code Availability

The proposed antenna is designed on CST Microwave Studio 2018.

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  1. Department of ECE, The ICFAI University, Dehradun, India

    Prachi Gupta & Vishal Gupta

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  1. Prachi Gupta
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  2. Vishal Gupta
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Gupta, P., Gupta, V. Thinned 8 × 8 Planar Antenna Array with Reduced Side Lobe Levels for 5G Applications. Wireless Pers Commun 119, 639–655 (2021). https://doi.org/10.1007/s11277-021-08228-2

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