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Conformal Filtering Patch Antenna With Dual Independently Tunable Radiation Nulls.

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Title: Conformal Filtering Patch Antenna With Dual Independently Tunable Radiation Nulls.
Authors: Zhao, Yang1 (AUTHOR) zhaoy035@avic.com, Upadhyaya, Trushit1 (AUTHOR) trushitupadhyaya.ec@charusat.ac.in
Source: International Journal of RF & Microwave Computer-Aided Engineering. 5/20/2026, Vol. 2026, p1-8. 8p.
Subjects: Conformal antennas, Microstrip resonators, Substrates (Materials science), Drone aircraft, Resonators, Planar antennas
Abstract: A conformal, compact, and flexible patch filtering antenna with independently tunable radiation nulls is presented. By etching open‐ended split‐ring resonator (SRR) slots and meandered slots on a conformal microstrip patch, two independently controllable radiation nulls are introduced to enhance band‐edge selectivity. The antenna is implemented on a flexible substrate, maintaining stable filtering performance and radiation null controllability under conformal conditions. The prototype is designed to operate at 2.37 GHz and conforms to a cylindrical surface with a radius of 70 mm. Two radiation nulls are achieved at 2.10 GHz and 2.47 GHz, respectively. The antenna exhibits an average in‐band gain of over 7.1 dBi and out‐of‐band suppression exceeding 20.5 dB. The proposed design is particularly suitable for conformal antenna systems in smart helmets and unmanned aerial vehicles (UAVs)/robotic platforms, where low‐profile integration onto curved surfaces and enhanced interference rejection are essential. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of RF & Microwave Computer-Aided Engineering 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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  Data: Conformal Filtering Patch Antenna With Dual Independently Tunable Radiation Nulls.
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  Data: <searchLink fieldCode="AR" term="%22Zhao%2C+Yang%22">Zhao, Yang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zhaoy035@avic.com</i><br /><searchLink fieldCode="AR" term="%22Upadhyaya%2C+Trushit%22">Upadhyaya, Trushit</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> trushitupadhyaya.ec@charusat.ac.in</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+RF+%26+Microwave+Computer-Aided+Engineering%22">International Journal of RF & Microwave Computer-Aided Engineering</searchLink>. 5/20/2026, Vol. 2026, p1-8. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Conformal+antennas%22">Conformal antennas</searchLink><br /><searchLink fieldCode="DE" term="%22Microstrip+resonators%22">Microstrip resonators</searchLink><br /><searchLink fieldCode="DE" term="%22Substrates+%28Materials+science%29%22">Substrates (Materials science)</searchLink><br /><searchLink fieldCode="DE" term="%22Drone+aircraft%22">Drone aircraft</searchLink><br /><searchLink fieldCode="DE" term="%22Resonators%22">Resonators</searchLink><br /><searchLink fieldCode="DE" term="%22Planar+antennas%22">Planar antennas</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A conformal, compact, and flexible patch filtering antenna with independently tunable radiation nulls is presented. By etching open‐ended split‐ring resonator (SRR) slots and meandered slots on a conformal microstrip patch, two independently controllable radiation nulls are introduced to enhance band‐edge selectivity. The antenna is implemented on a flexible substrate, maintaining stable filtering performance and radiation null controllability under conformal conditions. The prototype is designed to operate at 2.37 GHz and conforms to a cylindrical surface with a radius of 70 mm. Two radiation nulls are achieved at 2.10 GHz and 2.47 GHz, respectively. The antenna exhibits an average in‐band gain of over 7.1 dBi and out‐of‐band suppression exceeding 20.5 dB. The proposed design is particularly suitable for conformal antenna systems in smart helmets and unmanned aerial vehicles (UAVs)/robotic platforms, where low‐profile integration onto curved surfaces and enhanced interference rejection are essential. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of RF & Microwave Computer-Aided Engineering 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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      – Type: doi
        Value: 10.1155/mmce/3992208
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 1
    Subjects:
      – SubjectFull: Conformal antennas
        Type: general
      – SubjectFull: Microstrip resonators
        Type: general
      – SubjectFull: Substrates (Materials science)
        Type: general
      – SubjectFull: Drone aircraft
        Type: general
      – SubjectFull: Resonators
        Type: general
      – SubjectFull: Planar antennas
        Type: general
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      – TitleFull: Conformal Filtering Patch Antenna With Dual Independently Tunable Radiation Nulls.
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            NameFull: Zhao, Yang
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            – D: 20
              M: 05
              Text: 5/20/2026
              Type: published
              Y: 2026
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              Value: 2026
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            – TitleFull: International Journal of RF & Microwave Computer-Aided Engineering
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