J. Semicond. > 2015, Volume 36?>?Issue 12?> 125002

SEMICONDUCTOR INTEGRATED CIRCUITS

Design of broadband class-F power amplifier with high-order harmonic suppression for S-band application

Junming Lin, Guohao Zhang, Yaohua Zheng, Sizhen Li, Zhihao Zhang and Sidi Chen

+ Author Affiliations

 Corresponding author: Lin Junming,Email:junminglin@yeah.net

DOI: 10.1088/1674-4926/36/12/125002

PDF

Abstract: A broadband class-F power amplifier for an S-band handset device is integrated on a 3×3×0.82 mm3 die using an InGaP/GaAs HBT process. With LC serial harmonic traps immersed into the broadband output matching circuit, good harmonic suppression performance can be achieved. A pure resistive impedance of the matching circuit, but near zero at second and infinite at third harmonic frequency, which enhances the efficiency, is obtained across 1.8-2.5 GHz. Tested with a continuous wave(CW) signal, the PA delivers an output power of 34 dBm and achieves a PAE of 57% at 2 GHz. In addition, excellent harmonic suppression levels of less than-53 dBc across the second to fifth harmonic are obtained.

Key words: S-band, power amplifier, broadband, class-F, harmonic suppression, InGaP/GaAs HBT



[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
Fig1.  Configuration of class-F PA with output matching circuit.

Fig2.  (a) Basic configuration of matching circuit for class F PA. (b) Equivalent two L-sections matching circuit at the fundamental frequency. (c) Equivalent LC parallel circuit at the third frequency.

Fig3.  Class-F voltage and current waveforms.

Fig4.  Simulated result of impedance of the output matching circuit across 0 to 20 GHz.

Fig5.  Simulated result of $S_{21}$ of the output matching circuit across 0 to 20 GHz.

Fig6.  Photograph of the test board for class-F PA.

Fig7.  Microphotograph of the fabricated class-F PA

Fig8.  The measured results of large signal $S$ parameters.

Fig9.  The measured results of power gain and PAE versus output power.

Fig10.  The measured result of harmonic suppression.

Table 1.   Performance comparison with previously published works

DownLoad: CSV
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]

    • Search

    Advanced Search >>

    GET CITATION

    shu

    Export: BibTex EndNote

    Article Metrics

    Article views: 3705 Times PDF downloads: 41 Times Cited by: 0 Times

    History

    Received: 26 March 2015 Revised: Online: Published: 01 December 2015

    Catalog

      Email This Article

      User name:
      Email:*請輸入正確郵箱
      Code:*驗證碼錯誤
      Junming Lin, Guohao Zhang, Yaohua Zheng, Sizhen Li, Zhihao Zhang, Sidi Chen. Design of broadband class-F power amplifier with high-order harmonic suppression for S-band application[J]. Journal of Semiconductors, 2015, 36(12): 125002. doi: 10.1088/1674-4926/36/12/125002 ****J M Lin, G H Zhang, Y H Zheng, S Z Li, Z H Zhang, S D Chen. Design of broadband class-F power amplifier with high-order harmonic suppression for S-band application[J]. J. Semicond., 2015, 36(12): 125002. doi: 10.1088/1674-4926/36/12/125002.
      Citation:
      Junming Lin, Guohao Zhang, Yaohua Zheng, Sizhen Li, Zhihao Zhang, Sidi Chen. Design of broadband class-F power amplifier with high-order harmonic suppression for S-band application[J]. Journal of Semiconductors, 2015, 36(12): 125002. doi: 10.1088/1674-4926/36/12/125002 ****
      J M Lin, G H Zhang, Y H Zheng, S Z Li, Z H Zhang, S D Chen. Design of broadband class-F power amplifier with high-order harmonic suppression for S-band application[J]. J. Semicond., 2015, 36(12): 125002. doi: 10.1088/1674-4926/36/12/125002.

      Design of broadband class-F power amplifier with high-order harmonic suppression for S-band application

      DOI: 10.1088/1674-4926/36/12/125002

      • Guangdong University of Technology, Guangzhou 510006, China

      More Information
      • Corresponding author: Lin Junming,Email:junminglin@yeah.net
      • Received Date: 2015-03-26
      • Accepted Date: 2015-05-09
      • Published Date: 2015-01-25

      Catalog

        /

        DownLoad:  Full-Size Img  PowerPoint
        Return
        Return