Design of Multi Band Filtering Antenna with Low Mutual Coupling Using Decoupling Network.

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Title: Design of Multi Band Filtering Antenna with Low Mutual Coupling Using Decoupling Network.
Authors: Verma, Deepika1 deepikaverma609@gmail.com, Verma, Kiran K.1, Chandan2
Source: Progress in Electromagnetics Research C. 2026, Vol. 169, p84-94. 11p.
Subjects: Multifrequency antennas, Notch filters, Wireless communications, Interference suppression, Computer networks
Abstract: This paper presents the design of a compact multi-band filtered MIMO antenna, whereby a UWB antenna is converted into a tri-band antenna by adding two stubs-loaded band-notch filters (SLBNFs). The notch structures tactfully quiet undesired frequency bands and permit three clean operating bands likely to be utilized in S-band and C-band wireless systems. A 2 x 2 MIMO system is proposed using a centrally located decoupling network to regulate the distribution of surface currents, which achieves over 25 dB of isolation in all operating bands. The fractional bandwidth of the antenna in the first band (2.0-2.6 GHz), second band (3.48-3.82 GHz), and third band (5.68-6.42 GHz) are 16%, 9.3%, and 12.23%, respectively. The peak gains in the corresponding operating bands are 2.8 dB, 4.1 dB, and 5 dB, respectively. The proposed design is suitable for the present-day S- and C-band communication systems and multi-standard wireless devices due to its selective multi-band response, better isolation, and compact structure. [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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  Label: Title
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  Data: Design of Multi Band Filtering Antenna with Low Mutual Coupling Using Decoupling Network.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Verma%2C+Deepika%22">Verma, Deepika</searchLink><relatesTo>1</relatesTo><i> deepikaverma609@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Verma%2C+Kiran+K%2E%22">Verma, Kiran K.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Chandan%22">Chandan</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Progress+in+Electromagnetics+Research+C%22">Progress in Electromagnetics Research C</searchLink>. 2026, Vol. 169, p84-94. 11p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Multifrequency+antennas%22">Multifrequency antennas</searchLink><br /><searchLink fieldCode="DE" term="%22Notch+filters%22">Notch filters</searchLink><br /><searchLink fieldCode="DE" term="%22Wireless+communications%22">Wireless communications</searchLink><br /><searchLink fieldCode="DE" term="%22Interference+suppression%22">Interference suppression</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+networks%22">Computer networks</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This paper presents the design of a compact multi-band filtered MIMO antenna, whereby a UWB antenna is converted into a tri-band antenna by adding two stubs-loaded band-notch filters (SLBNFs). The notch structures tactfully quiet undesired frequency bands and permit three clean operating bands likely to be utilized in S-band and C-band wireless systems. A 2 x 2 MIMO system is proposed using a centrally located decoupling network to regulate the distribution of surface currents, which achieves over 25 dB of isolation in all operating bands. The fractional bandwidth of the antenna in the first band (2.0-2.6 GHz), second band (3.48-3.82 GHz), and third band (5.68-6.42 GHz) are 16%, 9.3%, and 12.23%, respectively. The peak gains in the corresponding operating bands are 2.8 dB, 4.1 dB, and 5 dB, respectively. The proposed design is suitable for the present-day S- and C-band communication systems and multi-standard wireless devices due to its selective multi-band response, better isolation, and compact structure. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>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.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.2528/PIERC26020602
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 84
    Subjects:
      – SubjectFull: Multifrequency antennas
        Type: general
      – SubjectFull: Notch filters
        Type: general
      – SubjectFull: Wireless communications
        Type: general
      – SubjectFull: Interference suppression
        Type: general
      – SubjectFull: Computer networks
        Type: general
    Titles:
      – TitleFull: Design of Multi Band Filtering Antenna with Low Mutual Coupling Using Decoupling Network.
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            NameFull: Verma, Deepika
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            NameFull: Verma, Kiran K.
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            NameFull: Chandan
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          Dates:
            – D: 01
              M: 07
              Text: 2026
              Type: published
              Y: 2026
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              Value: 19378718
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              Value: 169
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            – TitleFull: Progress in Electromagnetics Research C
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