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Design and Development of Patch Loaded Slot Antenna for Super Wide band Communication System and MIMO Application

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Abstract

This paper presents a parasitic patch-loaded slot antenna for super wideband application. It consists of a star-shaped slot loaded with a tilted square patch situated at its center. In order to enhance the impedance bandwidth, the feeding structure comprises two coupled semi-circular stubs on its either side. The semi-circular stubs increase the impedance bandwidth from 61 to 168% and reduce the antenna size from 3.89 to 0.057 λl2. To validate the simulated results, a prototype is fabricated and tested. The measured result shows that the proposed antenna offers an impedance bandwidth of 163% ranging between 2 and 20 GHz with the overall electrical size of 0.24λl × 0.24λl. Further, the diversity analysis of two-element antenna configuration is performed for MIMO application. It offers isolation more than 30 dB in most of the frequency regions. The other parameters like channel capacity loss (CCL), diversity gain, envelope correlation coefficient (ECC), and mean effective gain (MEG) are calculated and found to be in acceptable limits. Besides, the time domain analysis is also performed to check the suitability of the proposed antenna for distortionless transmission and reception over a long distance. Results show that in side-by-side configuration, the proposed antenna tenders more than 25 dB isolation and almost constant group delay.

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No funding is received for the presented work.

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Authors and Affiliations

  1. National Institute of Technology Delhi, Delhi, India

    Sachin Agrawal

  2. PDPM-IIITDM Jabalpur, Jabalpur, India

    Manoj Singh Parihar

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  1. Sachin Agrawal
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  2. Manoj Singh Parihar
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Correspondence to Sachin Agrawal.

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Agrawal, S., Parihar, M.S. Design and Development of Patch Loaded Slot Antenna for Super Wide band Communication System and MIMO Application. Wireless Pers Commun 130, 2853–2868 (2023). https://doi.org/10.1007/s11277-023-10406-3

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