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Design of Dual-Band Class F-1 Power Amplifier Based on the Integration of Harmonic Control and Fundamental Matching.

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Title: Design of Dual-Band Class F-1 Power Amplifier Based on the Integration of Harmonic Control and Fundamental Matching.
Authors: Huang, Wen1 huangwen@cqupt.edu.cn, Zhao, Junhao2, Liu, Jiang1, Hao, Honggang1
Source: Progress in Electromagnetics Research C. 2026, Vol. 167, p223-229. 7p.
Subjects: Power amplifiers, Impedance matching
Abstract: This paper proposes a dual-band class F-1 high-efficiency power amplifier with an integrated structure for harmonic suppression and fundamental matching. The fundamental matching network employed a dual-frequency coupler with open branches. This structure is partially reused for third-harmonic control by leveraging two open branches and two branch lines. By adjusting the characteristic impedance of the quarter-wavelength transmission line, the third-harmonic impedance is adjusted to a short circuit at both fundamental frequencies at the drain of the power amplifier. The second-harmonic control network consists of a quarter-wavelength open stub and a drain bias line loaded with a double-spiral defected ground structure (DGS), which controls the second-harmonic impedance to an open circuit state at the drain, satisfying the class F-1 harmonic conditions. A dual-band high-efficiency class F-1 power amplifier operating at 2.6 GHz/3.4 GHz is designed and fabricated. The measured results show drain efficiencies of 73.5% and 74.3% at 2.6 GHz/3.4 GHz, with output power exceeding 40 dBm and gain above 10 dB. [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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DbLabel: Engineering Source
An: 192721118
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  Data: Design of Dual-Band Class F<superscript>-1</superscript> Power Amplifier Based on the Integration of Harmonic Control and Fundamental Matching.
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  Data: <searchLink fieldCode="JN" term="%22Progress+in+Electromagnetics+Research+C%22">Progress in Electromagnetics Research C</searchLink>. 2026, Vol. 167, p223-229. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Power+amplifiers%22">Power amplifiers</searchLink><br /><searchLink fieldCode="DE" term="%22Impedance+matching%22">Impedance matching</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This paper proposes a dual-band class F-1 high-efficiency power amplifier with an integrated structure for harmonic suppression and fundamental matching. The fundamental matching network employed a dual-frequency coupler with open branches. This structure is partially reused for third-harmonic control by leveraging two open branches and two branch lines. By adjusting the characteristic impedance of the quarter-wavelength transmission line, the third-harmonic impedance is adjusted to a short circuit at both fundamental frequencies at the drain of the power amplifier. The second-harmonic control network consists of a quarter-wavelength open stub and a drain bias line loaded with a double-spiral defected ground structure (DGS), which controls the second-harmonic impedance to an open circuit state at the drain, satisfying the class F-1 harmonic conditions. A dual-band high-efficiency class F-1 power amplifier operating at 2.6 GHz/3.4 GHz is designed and fabricated. The measured results show drain efficiencies of 73.5% and 74.3% at 2.6 GHz/3.4 GHz, with output power exceeding 40 dBm and gain above 10 dB. [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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        Value: 10.2528/PIERC26012009
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 7
        StartPage: 223
    Subjects:
      – SubjectFull: Power amplifiers
        Type: general
      – SubjectFull: Impedance matching
        Type: general
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      – TitleFull: Design of Dual-Band Class F-1 Power Amplifier Based on the Integration of Harmonic Control and Fundamental Matching.
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            NameFull: Huang, Wen
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            NameFull: Zhao, Junhao
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            NameFull: Liu, Jiang
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            – D: 01
              M: 05
              Text: 2026
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              Y: 2026
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              Value: 167
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            – TitleFull: Progress in Electromagnetics Research C
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