Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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Design of J-Class Amplifier with High Efficiency

고효율특성을 갖는 J급 증폭기 설계

  • 노희정 (김포대학교 유비쿼터스-IT과) ;
  • 이병선 (김포대학교 유비쿼터스-IT과)
  • Received : 2012.08.17
  • Accepted : 2012.09.26
  • Published : 2012.11.30
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Abstract

In this paper designed J-class amplifier that have high efficiency using parasitic of pHEMT. Measured results of the designed J-class amplifier is maxmum output power of 31.5dBm and gain of 16.5dB, minimum output power of 29.8dBm. when input power 15dBm. Maxmum drain efficiency is 76.2% at 2.95GHz, maxmum drain efficiency is 61%. The J-class amplifier has average gain of 15.35dB and average efficiency of 35%.

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References

  1. Design of High Efficiency Class-J mode Power Amplifier using GaN HEMT with Broad-band Characteristic.
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  3. T. Zhang, Wideband Hybrid-Class Power Amplifier for Base Station Applications Using LDMOS with Envelope Tracking system, Delft University of Technology, July 2009.
  4. Junghwan Moon, Jungjoon Kim, and Bumman Kim, "Investigation of a Class-J Power Amplifier With a Nonlinear $C_{out}$ for Optimized Operation" IEEE Trans. MTT, Vol. 58, No. 11, pp. 2800-2811, NOVEMBER 2010. https://doi.org/10.1109/TMTT.2010.2077970