Design of Concurrent Tri-Band High-Efficiency Power Amplifier Based on Wireless Applications

To meet the existing requirements of multiband communication and improve the efficiency and performance of communication RF modules, a concurrent tri-band high-efficiency power amplifier operating in three frequency bands is proposed. The input and output impedance values of concurrent power amplifi...

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Bibliographic Details
Published in:Electronics (Basel) 2022-11, Vol.11 (21), p.3544
Main Authors: Gao, Mingming, Xu, Gaoyang, Nan, Jingchang
Format: Article
Language:English
Subjects:
Amplification
Amplifier design
Banded structure
Circuit design
Communication
Design and construction
Design techniques
Efficiency
Impedance matching
Load
Methods
Microstrip transmission lines
Microwave wiring
Mobile communication systems
Power amplifiers
Radio frequency
System effectiveness
Transistors
Wireless communication systems
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Summary:To meet the existing requirements of multiband communication and improve the efficiency and performance of communication RF modules, a concurrent tri-band high-efficiency power amplifier operating in three frequency bands is proposed. The input and output impedance values of concurrent power amplifier is analyzed, and the input and output-matching circuit and bias circuit are designed. Through the impedance compensation principle, the impedance matching of three frequency bands is realized, and the amplifier can maintain high power and high efficiency at three arbitrary wide interval frequencies. To this end, a simultaneous tri-band power amplifier is designed and tested by using transistor CGH40010F. The experimental results show that the peak power of the designed simultaneous tri-band high-efficiency power amplifier is more than 10 W, the power-added efficiency reaches 55~69%, and the amplification gain is about 10 dB at three frequency bands of 2.2, 2.6, and 3.5 GHz. The design of concurrent tri-band high-efficiency power amplifier is flexible, the calculation of microstrip line parameters is simple, and it can work in three frequency bands simultaneously. It provides an effective structure scheme for designing concurrent power amplifiers in transmitting systems.
ISSN:2079-9292
2079-9292
DOI:10.3390/electronics11213544