Browse > Article

Dual-Band Class F Power Amplifier using CRLH-TLs for Multi-Band Antenna System  

Kim, Sun-Young (Information and Telecommunication Engineering, Soongsil University)
Seo, Chul-Hun (Information and Telecommunication Engineering, Soongsil University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.45, no.12, 2008 , pp. 7-12 More about this Journal
Abstract
In this paper, a highly efficiency power amplifier is presented for multi-band antenna system. The class F power amplifier operating in dual-band designed with one LDMOSFET. An operating frequency of power amplifier is 900 MHz and 2.14 GHz respectively Matching networks and harmonic control circuits of amplifier are designed by using the unit cell of composite right/left-handed(CRLH) transmission line(TL) realized with lumped elements. The CRLH TL can lead to metamaterial transmission line with the dual-band holing capability. The dual-band operation of the CRLH TL is achieved by the frequency offset and the nonlinear phase slope of the CRLH TL for the matching network of the power amplifier. Because the control of all harmonic components for high efficiency is very difficult, we have controled only the second- and third-harmonics to obtain the high efficiency with the CRLH TL. Also, the proposed power amplifier has been realized by using the harmonic control circuit for not only the output matching network, but also the input matching network for better efficiency.
Keywords
class F power amplifier; CRLH transmission line; dual-band; harmonic control;
Citations & Related Records
연도 인용수 순위
  • Reference
1 D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, "Composite medium with simultaneously negative permeability and permittivity", Phys. Rev. Lett., vol. 84, no. 18, pp. 4184-4187, May 2000   DOI   ScienceOn
2 J. I. Moon, "Antenna Technology Trands for Telecommunications and Broadcasting Conversion Services", 전자통신동향분석, vol. 23, no. 3, Jun. 2008
3 J. H. Jung, "무선통신용 고성능 전력증폭기 및 송신기 기술동향", IDEC Newsletter, vol. 117, pp.8-13, April. 2007
4 S. C. Cripps " A Theory for the Prediction of GaAs FET Load-Pull Power Contous," IEEE MTT-S Digest, pp. 221-223, 1983
5 H. C. Park, G. H. Ahn, S. C. Jung, C. S. Park, W. S. Nah, B. S. Kim, and Y. G. Yang, "High-Efficiency Class-F Amplifier Design In The Presence of Internal Parasitic Components of Transistors", Proceeding of the 36th European Microwave Conference, Sep. 2006
6 Grebennikov, A. V., "Switched-mode tuned high-efficiency power amplifiers: historical aspect and future prospect", IEEE RFIC Symp., page 49-52, June 2002
7 Y. Y. Woo, Y. Yang, and B. Kim, "Analysis and experiments for high efficiency class-F and inverse class-F power amplifiers", IEEE Trans. Microw. Theory Tech., vol. 54, no. 5, pp. 1969-1974, May 2006   DOI   ScienceOn
8 D. R. Smith, N. Kroll, "Negative refractive index in left-handed materials", Phys. Rev. Lett., vol. 85, no. 14, pp. 2933-2936, Oct. 2000   DOI   ScienceOn
9 P. -S. Kildal, A. A. Kishk, and S. Maci, "Ed. special issue on artificial magnetic conductors, soft hard surfaces, and other complex surfaces", IEEE Trans. Antennas Propagat., vol. 53, no. 1, part 1, Jan. 2005
10 J. Staudinger, "Applying switched gain stage concepts to improve efficiency and linearity for mobile CDMA power amplifi-cation," Microwave Journal, pp. 152- 162, Sep. 2000
11 Grebennikov, A. V., "Circuit Design Technique for High Efficiency Class F Amplifier", IEEE MTT-S Int. Microwave Symp. Dig., vol. 2, page 771-774, June 2000
12 Y. Y. Woo, Y. Yang, and B. Kim, "Efficiency Comparison Between Highly Efficient Class-F and Inverse Class-F Power Amplifiers", IEEE Microwave magazine, June 2007
13 A. K. Iyer, G. V. Eleftheriades, "Negative refractive index metamaterials supporting 2-D waves", IEEE MTT-S Int. Microwave Symp. Dig., vol. 2, pp. 1067-1070, Jun. 2002