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Fabry-Perot Resonator Antenna Design Based on Phased Array Feed.

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Title: Fabry-Perot Resonator Antenna Design Based on Phased Array Feed.
Authors: Li, Zechen1 13105345464@163.com, Weng, Zibin1,2, Li, Yahong1, Su, Youqian1, Guo, Jingnan1
Source: Progress in Electromagnetics Research C. 2026, Vol. 168, p56-63. 8p.
Subjects: Fabry-Perot resonators, Phased array antennas, Microstrip antenna arrays, Reflective materials, Antennas (Electronics), Antenna design
Abstract: To address the issues of narrow gain bandwidth and severe element coupling faced by traditional Fabry-Perot resonant antennas in phased-array feed systems, this paper proposes a decoupling design method based on a highly optimized resonant mode height. By analyzing the electric field distributions and coupling mechanisms under multi-feed conditions, an improved resonator height calculation formula suitable for phased-array feeds was derived, achieving mutual suppression of energy between reflected wave coupling and inter-element coupling. A 2 × 2 microstrip antenna array is used as the feed source. Combined with a multilayer positive phase gradient partially reflective surface, a Fabry-Perot antenna prototype operating at 28 GHz was designed and fabricated. Simulated and experimental results demonstrate that compared to conventional designs, this antenna achieves a maximum gain at 28 GHz, increased from 21.80 dBi to 23.15 dBi, with the 3-dB gain bandwidth expanded from 1350 MHz to 1730 MHz. This study provides an effective approach for achieving a broadband high-gain design in phased-array fed Fabry-Perot resonant antennas. [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: Fabry-Perot Resonator Antenna Design Based on Phased Array Feed.
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  Data: <searchLink fieldCode="JN" term="%22Progress+in+Electromagnetics+Research+C%22">Progress in Electromagnetics Research C</searchLink>. 2026, Vol. 168, p56-63. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Fabry-Perot+resonators%22">Fabry-Perot resonators</searchLink><br /><searchLink fieldCode="DE" term="%22Phased+array+antennas%22">Phased array antennas</searchLink><br /><searchLink fieldCode="DE" term="%22Microstrip+antenna+arrays%22">Microstrip antenna arrays</searchLink><br /><searchLink fieldCode="DE" term="%22Reflective+materials%22">Reflective materials</searchLink><br /><searchLink fieldCode="DE" term="%22Antennas+%28Electronics%29%22">Antennas (Electronics)</searchLink><br /><searchLink fieldCode="DE" term="%22Antenna+design%22">Antenna design</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: To address the issues of narrow gain bandwidth and severe element coupling faced by traditional Fabry-Perot resonant antennas in phased-array feed systems, this paper proposes a decoupling design method based on a highly optimized resonant mode height. By analyzing the electric field distributions and coupling mechanisms under multi-feed conditions, an improved resonator height calculation formula suitable for phased-array feeds was derived, achieving mutual suppression of energy between reflected wave coupling and inter-element coupling. A 2 × 2 microstrip antenna array is used as the feed source. Combined with a multilayer positive phase gradient partially reflective surface, a Fabry-Perot antenna prototype operating at 28 GHz was designed and fabricated. Simulated and experimental results demonstrate that compared to conventional designs, this antenna achieves a maximum gain at 28 GHz, increased from 21.80 dBi to 23.15 dBi, with the 3-dB gain bandwidth expanded from 1350 MHz to 1730 MHz. This study provides an effective approach for achieving a broadband high-gain design in phased-array fed Fabry-Perot resonant antennas. [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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      – Type: doi
        Value: 10.2528/PIERC26010806
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 56
    Subjects:
      – SubjectFull: Fabry-Perot resonators
        Type: general
      – SubjectFull: Phased array antennas
        Type: general
      – SubjectFull: Microstrip antenna arrays
        Type: general
      – SubjectFull: Reflective materials
        Type: general
      – SubjectFull: Antennas (Electronics)
        Type: general
      – SubjectFull: Antenna design
        Type: general
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      – TitleFull: Fabry-Perot Resonator Antenna Design Based on Phased Array Feed.
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            NameFull: Li, Zechen
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            NameFull: Weng, Zibin
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            NameFull: Li, Yahong
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            NameFull: Su, Youqian
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            NameFull: Guo, Jingnan
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            – D: 01
              M: 06
              Text: 2026
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              Y: 2026
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              Value: 168
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            – TitleFull: Progress in Electromagnetics Research C
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