Efficiency improvement in microwave power amplifiers by using Complex Gain Predistortion technique

Somayeh Mohammady; Pooria Varahram; Roslina M. Sidek; Mohd Nizar Hamidon; Nasri Sulaiman

doi:10.1587/elex.7.1721

Efficiency improvement in microwave power amplifiers by using Complex Gain Predistortion technique

Somayeh Mohammady, Pooria Varahram, Roslina M. Sidek, Mohd Nizar Hamidon, Nasri Sulaiman

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

Power Amplifiers (PAs) are important parts of the transmitters. They amplify the signals that are going to be transmitted. With increasing the input power of the PA, it creates the nonlinearity at the output. The nonlinearity causes out of band distortion and in band distortion. To overcome these effects the power amplifier should be backed off but it will reduce the efficiency of the PA. To increase the efficiency, the Complex Gain Memory Predistortion (CGP) is added to the system. Experimental results with the Mini Circuit power amplifier show an improvement of 7% in Power Added Efficiency (PAE) when the CGP method is applied.

Original language	English
Pages (from-to)	1721-1727
Number of pages	7
Journal	IEICE Electronics Express
Volume	7
Issue number	23
DOIs	https://doi.org/10.1587/elex.7.1721
Publication status	Published - Dec 2010
Externally published	Yes

Keywords

CGP
Efficiency
Power amplifier
Predistortion

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10.1587/elex.7.1721

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title = "Efficiency improvement in microwave power amplifiers by using Complex Gain Predistortion technique",

abstract = "Power Amplifiers (PAs) are important parts of the transmitters. They amplify the signals that are going to be transmitted. With increasing the input power of the PA, it creates the nonlinearity at the output. The nonlinearity causes out of band distortion and in band distortion. To overcome these effects the power amplifier should be backed off but it will reduce the efficiency of the PA. To increase the efficiency, the Complex Gain Memory Predistortion (CGP) is added to the system. Experimental results with the Mini Circuit power amplifier show an improvement of 7% in Power Added Efficiency (PAE) when the CGP method is applied.",

keywords = "CGP, Efficiency, Power amplifier, Predistortion",

author = "Somayeh Mohammady and Pooria Varahram and Sidek, {Roslina M.} and Hamidon, {Mohd Nizar} and Nasri Sulaiman",

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AU - Varahram, Pooria

AU - Sidek, Roslina M.

AU - Hamidon, Mohd Nizar

AU - Sulaiman, Nasri

PY - 2010/12

Y1 - 2010/12

N2 - Power Amplifiers (PAs) are important parts of the transmitters. They amplify the signals that are going to be transmitted. With increasing the input power of the PA, it creates the nonlinearity at the output. The nonlinearity causes out of band distortion and in band distortion. To overcome these effects the power amplifier should be backed off but it will reduce the efficiency of the PA. To increase the efficiency, the Complex Gain Memory Predistortion (CGP) is added to the system. Experimental results with the Mini Circuit power amplifier show an improvement of 7% in Power Added Efficiency (PAE) when the CGP method is applied.

AB - Power Amplifiers (PAs) are important parts of the transmitters. They amplify the signals that are going to be transmitted. With increasing the input power of the PA, it creates the nonlinearity at the output. The nonlinearity causes out of band distortion and in band distortion. To overcome these effects the power amplifier should be backed off but it will reduce the efficiency of the PA. To increase the efficiency, the Complex Gain Memory Predistortion (CGP) is added to the system. Experimental results with the Mini Circuit power amplifier show an improvement of 7% in Power Added Efficiency (PAE) when the CGP method is applied.

KW - CGP

KW - Efficiency

KW - Power amplifier

KW - Predistortion

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Efficiency improvement in microwave power amplifiers by using Complex Gain Predistortion technique

Abstract

Keywords

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