A planner Doherty power amplifier with harmonic suppression with open and short ended stubs
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Saeedeh Lotfi
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Sobhan Roshani
Abstract
This paper presents a new Doherty power amplifier (DPA) with harmonics suppression. A Wilkinson power divider (WPD) with open-ended and short-ended stubs is designed to suppress unwanted signals. To design the power divider in the circuit of the DPA, even and odd mode analyses are utilized. The proposed design operates at range of 1.2–1.6 GHz. The linearity of the suggested DPA is increased about 6 dBm, in comparison with the main amplifier. The designed Doherty amplifier has a power added efficiency (PAE), drain efficiency (DE) and Gain about 60, 61% and 19 dB, respectively. The designed WPD suppresses 2nd up to 14th harmonics with more than 20 dB suppression level, which is useful for suppressing unwanted harmonics in DPA design. ATF-34143 transistors (pHEMT technology) are used for this DPA amplifier design. The main amplifier has class-F topology and class-F inverse topology is used for auxiliary amplifier.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: None declared.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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© 2021 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Research Articles
- A planner Doherty power amplifier with harmonic suppression with open and short ended stubs
- Effect of moisture content on dielectric properties of banana leaves and peels in frequency range of 1–20 GHz
- Enhanced prompt trigger optical switching using nonlinear photonic crystal ring resonator for application on all-optical AND/NAND and OR/NOR logic function
- Switchable electromagnetic shield based on seawater
- Thermally switchable terahertz metasurface absorber composed of H-fractal and enabled by phase-change material of vanadium dioxide
- Sub-terahertz (THz) antenna for Internet of Things and 6G Communication
- An optimization of a reconfigurable CPW antenna for RF energy harvesting cognitive radio application
- Quintuple band circular monopole antenna with innovative 3-D printed PLA substrate for wireless applications
- A simple and compact broadband circularly polarized circular slot antenna for WLAN/WiMAX/DBS applications
- Design and Experimental Validation of Miniaturized Self-Triplexing Antenna Employing HMSIW
- Compact circular polarized CPW antenna for WLAN and biomedical applications
- Miniaturized frequency selective surface with high angular stability
Artikel in diesem Heft
- Frontmatter
- Research Articles
- A planner Doherty power amplifier with harmonic suppression with open and short ended stubs
- Effect of moisture content on dielectric properties of banana leaves and peels in frequency range of 1–20 GHz
- Enhanced prompt trigger optical switching using nonlinear photonic crystal ring resonator for application on all-optical AND/NAND and OR/NOR logic function
- Switchable electromagnetic shield based on seawater
- Thermally switchable terahertz metasurface absorber composed of H-fractal and enabled by phase-change material of vanadium dioxide
- Sub-terahertz (THz) antenna for Internet of Things and 6G Communication
- An optimization of a reconfigurable CPW antenna for RF energy harvesting cognitive radio application
- Quintuple band circular monopole antenna with innovative 3-D printed PLA substrate for wireless applications
- A simple and compact broadband circularly polarized circular slot antenna for WLAN/WiMAX/DBS applications
- Design and Experimental Validation of Miniaturized Self-Triplexing Antenna Employing HMSIW
- Compact circular polarized CPW antenna for WLAN and biomedical applications
- Miniaturized frequency selective surface with high angular stability
