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

IEICE Electronics Express

Mohd Nizar Hamidon¹  Nasri Sulaiman¹  Roslina M Sidek¹  Somayeh Mohammady¹  Pooria Varahram¹ 

[1] Department of Electrical and Electronic Engineering, University Putra Malaysia

关键词: predistortion;    efficiency;    power amplifier;    CGP;   

DOI  :  10.1587/elex.7.1721

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(7)Cited-By(8)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.

【 授权许可】

Unknown