Design of a Linear PA for the Frequency Hopping Transmitter using the Adaptive Predistortion Linearizer

적응 전치왜곡 선형화기를 사용한 주파수 도약 송신기용 선형 전력증폭기의 설계

  • 강경원 (한양대학교 전자전기공학부) ;
  • 이상설 (한양대학교 전자전기공학부)
  • Published : 2001.08.01

Abstract

A linear power amplifier for the VHF frequency-hopping(FH) transmitter using an adaptive predistortion linearizer is designed. An analog polynomial linearizer as predistorter is employed. The recursive least square(RLS) algorithm is employed in the optimization process to minimize the errors between the predistorter and postdistorter output signals. Experimental results show that the adjacent channel power of the designed power amplifier is reduced by of 10 dB.

Keywords

References

  1. RF power amplifiers for wireless communications Steve C. Cripps
  2. United States Patent, No. 5,049,832 Amplifier linearization by adaptive predistortion James K. Cavers
  3. Bell Syst. Tech. J. v.62 no.4 Adaptive linearization of power amplifiers in digital radio systems A. A. M. Saleh;J. Salz
  4. IEEE Trans. Veh. Tech. v.45 no.4 The frequency-hopped cartesian feedback linear transmitter Majid Boloorian
  5. IEEE Trans. Veh. Tech. The effect of quadrature modulator and demodulator errors on adaptive digital predistorters for amplifier linearization James K. Cavers
  6. IEEE Trans. Microwave Theory Tech. v.43 no.12 New adaptive double envelope feedback (ADEF) linearizer for solid state power amplifier Jean-Serge Cardinal
  7. IEEE Trans. Veh. Tech. v.95 Linear distortion correction using a feedforward system P. B. Kenington;D. W. Benett
  8. 대한전자공학회 논문지 v.34 no.11 휘드훠워드 선형 전력증폭기의 특성개선 박일;이상설
  9. 대한전자공학회 논문지 v.35 no.10 휘드훠워드 선형 전력증폭기의 주신호 제거회로 적응특성 해석 박일;이상설
  10. IEE. Proc.-Commun. v.143 no.2 Fast adaptive polynomial Ⅰand Q predistorter with global optimisation M. Ghaderi;S. Kumar;D. E. Dodds
  11. Adaptive filter theory S. Hakin
  12. IEEE Trans. Veh. Tech. A Hybrid Analytical-Simulation Procedure for Performance Evaluation in M-QAM-OFDM Schemes in Presence of Nonlinear Distortions G. Santella;F. Mazzenga
  13. Communication system S. Hakin