A Method for Performance Improvement of RF Power Amplifier by Using Defected Ground Structure

Conventional methods for improving output power and efficiency for RF power amplifiers would results the complex circuit and difficulty design. This problems will be solved when the defected ground structure (DGS) used in power amplifiers. The 50 Omega microstrip line with DGS used in output matchin...

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Bibliographic Details
Main Authors: Zhuowei Chen, Bin You
Format: Conference Proceeding
Language:English
Subjects:
Etching
Impedance matching
Microstrip
Power amplifiers
Power generation
Power system harmonics
Radio frequency
Radiofrequency amplifiers
Resonance
Shape
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Description
Summary:Conventional methods for improving output power and efficiency for RF power amplifiers would results the complex circuit and difficulty design. This problems will be solved when the defected ground structure (DGS) used in power amplifiers. The 50 Omega microstrip line with DGS used in output matching network can suppress the second and third harmonic components. In this paper the effects of DGS on the output power and efficiency of a class AB power amplifier would be simulated and realized at 2.4 GHz. The measured performance show that the DGS improve efficiency of power amplifier by 2-3%.
ISSN:2161-9646
DOI:10.1109/WICOM.2009.5303221