Simple Class F Power Amplifier Design with Fundamental Frequency Tuning

2020 ◽  
Author(s):  
Prateep Manasammakij ◽  
Tiwat Pongthavornkamol ◽  
Chatrpol Pakasiri
Keyword(s):  
Fundamental Frequency ◽  
Power Amplifier ◽  
Frequency Tuning ◽  
Simple Class ◽  
Amplifier Design ◽  
Class F

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.

On the class-F power amplifier design

1999 ◽  
Vol 9 (2) ◽  
pp. 129-149 ◽  
Author(s):  
Paolo Colantonio ◽  
Franco Giannini ◽  
Giorgio Leuzzi ◽  
Ernesto Limiti
Keyword(s):  
Power Amplifier ◽  
Amplifier Design ◽  
Class F
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