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A Novel Wideband U‐Slot Dual Cavity Backed SIW MIMO Antenna at X‐Band for RADAR Application.

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Title: A Novel Wideband U‐Slot Dual Cavity Backed SIW MIMO Antenna at X‐Band for RADAR Application.
Authors: Kumar, Abhay1 (AUTHOR) abhay.kumar@jiit.ac.in, Muchhal, Nitin1 (AUTHOR), Tewari, Nidhi1 (AUTHOR), Srivastava, Shweta1 (AUTHOR)
Source: Microwave & Optical Technology Letters. Mar2026, Vol. 68 Issue 3, p1-10. 10p.
Subjects: Substrate integrated waveguides, Radar, Broadband antennas, Antennas (Electronics), Antenna arrays, Antenna design
Abstract: A novel wideband dual cavity backed substrate integrated waveguide antenna is presented in this paper. The properties of dual cavity backed substrate integrated waveguide (SIW), U‐iterative slot design and dumbbell shaped defected ground structure has remarkably improved the bandwidth of the proposed antenna design. The proposed antenna achieves high gain, wide bandwidth, wide beam‐width, good FBR and high radiation efficiency in a compact design. A 2 × 2 MIMO dual cavity backed SIW antenna is proposed in this research paper. The proposed antenna element achieves a bandwidth of approximately 850 MHz and a fractional bandwidth of 8.2%. The antenna achieves a peak gain of 8.99 dBi at 10.4 GHz and an average simulated radiation efficiency of 93.59% over the bandwidth. The overall size of the proposed MIMO antenna is 2.3 λg × 2.2 λg × 0.04 λg where λg is the guided wavelength at operating frequency of 10 GHz. The MIMO performance parameters are lying within acceptable limits. These performance parameters of antenna are suitable for RADAR tracking and detection application at X‐band. [ABSTRACT FROM AUTHOR]
Copyright of Microwave & Optical Technology Letters is the property of Wiley-Blackwell 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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DbLabel: Engineering Source
An: 192558458
AccessLevel: 6
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PubTypeId: academicJournal
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  Data: A Novel Wideband U‐Slot Dual Cavity Backed SIW MIMO Antenna at X‐Band for RADAR Application.
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  Data: <searchLink fieldCode="AR" term="%22Kumar%2C+Abhay%22">Kumar, Abhay</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> abhay.kumar@jiit.ac.in</i><br /><searchLink fieldCode="AR" term="%22Muchhal%2C+Nitin%22">Muchhal, Nitin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tewari%2C+Nidhi%22">Tewari, Nidhi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Srivastava%2C+Shweta%22">Srivastava, Shweta</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Microwave+%26+Optical+Technology+Letters%22">Microwave & Optical Technology Letters</searchLink>. Mar2026, Vol. 68 Issue 3, p1-10. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Substrate+integrated+waveguides%22">Substrate integrated waveguides</searchLink><br /><searchLink fieldCode="DE" term="%22Radar%22">Radar</searchLink><br /><searchLink fieldCode="DE" term="%22Broadband+antennas%22">Broadband antennas</searchLink><br /><searchLink fieldCode="DE" term="%22Antennas+%28Electronics%29%22">Antennas (Electronics)</searchLink><br /><searchLink fieldCode="DE" term="%22Antenna+arrays%22">Antenna arrays</searchLink><br /><searchLink fieldCode="DE" term="%22Antenna+design%22">Antenna design</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: A novel wideband dual cavity backed substrate integrated waveguide antenna is presented in this paper. The properties of dual cavity backed substrate integrated waveguide (SIW), U‐iterative slot design and dumbbell shaped defected ground structure has remarkably improved the bandwidth of the proposed antenna design. The proposed antenna achieves high gain, wide bandwidth, wide beam‐width, good FBR and high radiation efficiency in a compact design. A 2 × 2 MIMO dual cavity backed SIW antenna is proposed in this research paper. The proposed antenna element achieves a bandwidth of approximately 850 MHz and a fractional bandwidth of 8.2%. The antenna achieves a peak gain of 8.99 dBi at 10.4 GHz and an average simulated radiation efficiency of 93.59% over the bandwidth. The overall size of the proposed MIMO antenna is 2.3 λg × 2.2 λg × 0.04 λg where λg is the guided wavelength at operating frequency of 10 GHz. The MIMO performance parameters are lying within acceptable limits. These performance parameters of antenna are suitable for RADAR tracking and detection application at X‐band. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Microwave & Optical Technology Letters is the property of Wiley-Blackwell 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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    Identifiers:
      – Type: doi
        Value: 10.1002/mop.70576
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 10
        StartPage: 1
    Subjects:
      – SubjectFull: Substrate integrated waveguides
        Type: general
      – SubjectFull: Radar
        Type: general
      – SubjectFull: Broadband antennas
        Type: general
      – SubjectFull: Antennas (Electronics)
        Type: general
      – SubjectFull: Antenna arrays
        Type: general
      – SubjectFull: Antenna design
        Type: general
    Titles:
      – TitleFull: A Novel Wideband U‐Slot Dual Cavity Backed SIW MIMO Antenna at X‐Band for RADAR Application.
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            NameFull: Kumar, Abhay
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            NameFull: Muchhal, Nitin
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            NameFull: Tewari, Nidhi
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            NameFull: Srivastava, Shweta
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            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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              Value: 68
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            – TitleFull: Microwave & Optical Technology Letters
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