Highly efficient Doherty power amplifier using continuous inverse class‐F and class‐J hybrid mode

2020 ◽  
Vol 30 (12) ◽  
Author(s):  
Tao Wang ◽  
Zhiqun Cheng ◽  
Guohua Liu
Keyword(s):  
Power Amplifier ◽  
Hybrid Mode ◽  
Highly Efficient ◽  
Doherty Power Amplifier ◽  
Continuous Inverse ◽  
Class F

scholarly journals Advancement of a Highly Efficient Class-F power Amplifier for 5G Doherty Architectures

2019 ◽  
Author(s):  
Maryam Sajedin ◽  
Issa Elfergani ◽  
Jonathan Rodriguez ◽  
Raed Abd Alhameed ◽  
Naser Ojaroudi Parchin ◽  
...  
Keyword(s):  
Power Amplifier ◽  
Highly Efficient ◽  
Class F

Extended Inverse Class-F Continuum for Designing Broadband Power Amplifier

2020 ◽  
pp. 2150015
Author(s):  
Decheng Gan ◽  
Weimin Shi
Keyword(s):  
Power Amplifier ◽  
Experimental Results ◽  
Current Waveform ◽  
Saturation Power ◽  
Continuous Inverse ◽  
Class F

The impedance space of the continuous inverse class-F power amplifier (PA) is extended in this paper. Traditionally, for extending impedance space, a reactive term is introduced into the current waveform of the continuous inverse class-F PA. In this paper, two reactive terms are introduced into the current and voltage waveforms simultaneously. The proposed method results in an expansive impedance space for designing broadband continuous inverse class-F PAs. For validating the proposed theory, a broadband PA working over 1.2–4.0[Formula: see text]GHz is designed and fabricated. Experimental results indicate that the fabricated broadband PA delivers a saturation power of 40.2–42.8[Formula: see text]dBm and a drain efficiency of 50.7–69%.

A planner Doherty power amplifier with harmonic suppression with open and short ended stubs

Frequenz ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Saeedeh Lotfi ◽  
Saeed Roshani ◽  
Sobhan Roshani ◽  
Maryam Shirzadian Gilan
Keyword(s):  
Power Amplifier ◽  
Power Divider ◽  
Harmonic Suppression ◽  
Power Added Efficiency ◽  
Main Amplifier ◽  
Inverse Topology ◽  
Doherty Power Amplifier ◽  
Amplifier Design ◽  
Doherty Amplifier ◽  
Class F

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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