Development of Two Port Koch Geometry Inspired Pentagonal MIMO Antenna for n79 NR 5G Sub-6 GHz Band.

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Title: Development of Two Port Koch Geometry Inspired Pentagonal MIMO Antenna for n79 NR 5G Sub-6 GHz Band.
Authors: Phalswal, Ashish1 ashishphalswal@yahoo.in, Prakash, Ved1, Tripathi, Sweta1, Verma, Manish2
Source: Progress in Electromagnetics Research C. 2026, Vol. 165, p150-160. 11p.
Subjects: Fractals, Coplanar waveguides, Bandwidths
Abstract: A two-port coplanar waveguide (CPW) multiple-input multiple-output antenna (MIMOA) based on Koch geometry (KG) with a wide bandwidth and high isolation is proposed in this work. A high-frequency structure simulator (HFSS) is used for performance analysis and parametric optimization. Initially, a CPW-fed circular patch was designed, which was further modified using KG, and a single antenna element (SAE) was designed. A two-port MIMO layout was further designed using the SAE. The proposed MIMOA is designed with a cross slot on an FR4 substrate, which offers a wide bandwidth of 1110 MHz (3.91-5.02 GHz) and works at 4.16 and 4.69 GHz. It exhibits excellent diversity performance with a Channel Capacity Loss (CCL) < 0.4 bits/s/Hz, Envelope Correlation Coefficient (ECC) < 0.25, Diversity Gain (DG) > 9.7, Mean Effective Gain (MEG) (1, 2) < 1 dB, Total Active Refection Coefficient (TARC) ≈ -20 dB from port 1 to port 2, and isolation of ≈ 20 dB across the band. The proposed MIMOA offers a high radiation efficiency (n) of ≥ 80% across the entire band. The designed MIMOA was fabricated and tested to validate the simulation results. The proposed MIMOA is useful for 5G communication and covers a frequency ranging from 3.91 GHz to 5 GHz. [ABSTRACT FROM AUTHOR]
Copyright of Progress in Electromagnetics Research C is the property of Electromagnetics Academy and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Development of Two Port Koch Geometry Inspired Pentagonal MIMO Antenna for n79 NR 5G Sub-6 GHz Band.
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Progress+in+Electromagnetics+Research+C%22&quot;&gt;Progress in Electromagnetics Research C&lt;/searchLink&gt;. 2026, Vol. 165, p150-160. 11p.
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  Data: A two-port coplanar waveguide (CPW) multiple-input multiple-output antenna (MIMOA) based on Koch geometry (KG) with a wide bandwidth and high isolation is proposed in this work. A high-frequency structure simulator (HFSS) is used for performance analysis and parametric optimization. Initially, a CPW-fed circular patch was designed, which was further modified using KG, and a single antenna element (SAE) was designed. A two-port MIMO layout was further designed using the SAE. The proposed MIMOA is designed with a cross slot on an FR4 substrate, which offers a wide bandwidth of 1110 MHz (3.91-5.02 GHz) and works at 4.16 and 4.69 GHz. It exhibits excellent diversity performance with a Channel Capacity Loss (CCL) &lt; 0.4 bits/s/Hz, Envelope Correlation Coefficient (ECC) &lt; 0.25, Diversity Gain (DG) &gt; 9.7, Mean Effective Gain (MEG) (1, 2) &lt; 1 dB, Total Active Refection Coefficient (TARC) ≈ -20 dB from port 1 to port 2, and isolation of ≈ 20 dB across the band. The proposed MIMOA offers a high radiation efficiency (n) of ≥ 80% across the entire band. The designed MIMOA was fabricated and tested to validate the simulation results. The proposed MIMOA is useful for 5G communication and covers a frequency ranging from 3.91 GHz to 5 GHz. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: &lt;i&gt;Copyright of Progress in Electromagnetics Research C is the property of Electromagnetics Academy and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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        Value: 10.2528/PIERC25110702
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 11
        StartPage: 150
    Subjects:
      – SubjectFull: Fractals
        Type: general
      – SubjectFull: Coplanar waveguides
        Type: general
      – SubjectFull: Bandwidths
        Type: general
    Titles:
      – TitleFull: Development of Two Port Koch Geometry Inspired Pentagonal MIMO Antenna for n79 NR 5G Sub-6 GHz Band.
        Type: main
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            NameFull: Phalswal, Ashish
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            NameFull: Prakash, Ved
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            NameFull: Tripathi, Sweta
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            NameFull: Verma, Manish
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            – D: 01
              M: 03
              Text: 2026
              Type: published
              Y: 2026
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              Value: 165
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            – TitleFull: Progress in Electromagnetics Research C
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