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Realization of High Linear and Efficiency Power Amplifier Using Optimum Load Without Hybrid Coupler  

An, Se-Hwan (School of Elctronic Engineering Soongsil Univ.)
Seo, Chul-Hun (School of Elctronic Engineering Soongsil Univ.)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.43, no.2, 2006 , pp. 88-93 More about this Journal
Abstract
In this paper, smaller load has been used compared with the conventional Doherty amplifier and PBG structure have been employed to suppress IMD (Inter-modulation Distortion) and improve PAE (Power Added Efficiency). And The PBG structure has been employed on the output macthing network of Doherty amplifier. The proposed power amplifier has been improved more the IMD3 by 5.5 dBc, and the average PAE by $5\%,$ at peak output power, $18\%$ at 8dB back-off point respectively than the conventional Doherty power amplifier.
Keywords
PBG; Doherty power amplifier; Load-Pull;
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Times Cited By KSCI : 1  (Citation Analysis)
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