Browse > Article
http://dx.doi.org/10.5515/KJKIEES.2008.19.12.1313

Linearity and Efficiency Improved outphasing Class-E Power Amplifier Using Composite Right/Left-Handed Transmission Lines Combiner  

Eun, Sang-Ki (School of Electronics, Telecommunication and Computer Engineering, Korea Aerospace University)
Cho, Choon-Sik (School of Electronics, Telecommunication and Computer Engineering, Korea Aerospace University)
Lee, Jae-W. (School of Electronics, Telecommunication and Computer Engineering, Korea Aerospace University)
Kim, Jae-Heung (School of Electrical and Electronic Engineering, Yonsei University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.19, no.12, 2008 , pp. 1313-1321 More about this Journal
Abstract
outphasing class-E power amplifier using composite right/left-handed transmission lines(CRLH-TL) is proposed at 2.4 GHz. The power combiner including CRLH-TL is designed to suppress the second and third harmonics to increase linearity and the output problem of the conventional outphasing amplifier is also solved by the proposed outphasing amplifier. So the P AE is improved. The measured maximum output power at the fundamental frequency shows 31.8 dBm, whereas the PAE shows 50 % with 14 dBm input power excited. The IMD3 is improved by 5 dB compared to that of conventional outphasing amplifier.
Keywords
CRLH-TL; outphasing Power Amplifier; Class-E Amplifier;
Citations & Related Records
연도 인용수 순위
  • Reference
1 A. Birafane, A. B. Kouki, 'Sources of linearity degradation in LINC transmitters for hybrid and outphasing combiners', Electrical and Computer Engineering 2004 Canadian Conference, pp. 547-550, May 2004
2 C. Caloz, T. Itoh, 'Application of the transmission line theory of left handed(LH) materials to the realization of a microstrip LH transmission line', IEEE AP-S Int. Symposium Digest, vol. 2, pp. 412- 415, 2002
3 D. C. Cox, 'Linear amplification with nonlinear components', IEEE Trans. Comm., vol. 22, pp. 1942- 1945, Dec. 1974   DOI
4 I. Lin, M. Devincentis, C. Caloz, and T. Itoh, 'Arbitrary dual-band components using composite right/left handed transmission lines', IEEE Trans. Microwave Theory & Tech., vol. 50, no. 4, pp. 1142-1149, Apr. 2004
5 S. K. Eun, S. H. Ji, C. S. Cho, J. W. Lee, and J. Kim, 'A high linearity Chireix outphasing power amplifier using composite right/left-handed transmission lines', 37th European Microwave Conference Proceedings, pp. 343-346, Oct. 2007
6 C. Caloz, A. Sanada, and T. Itoh, 'A novel composite right-/left-handed coupled-line directional coupler with arbitrary coupling level and broad bandwidth', IEEE Trans. Microwave Theory & Tech., vol. 52, no. 3, pp. 980-992, Mar. 2004   DOI   ScienceOn
7 G. M. Hegazi, T. T. Chu, and R. A. Groshong, 'Improved LINC power transmission using a quadrature outphasing technique', Microwave Symposium Digest, 2005 IEEE MTT-S International, pp. 12-17, Jun. 2005
8 I. Hakala, D. K. Choi, L. Gharavi, N. Kajakine, J. Koskela, and R. Kaunisto, 'A 2.14-GHz chireix outphasing transmitter', IEEE Trans. Microwave Theory & Tech., vol. 53, no. 6, Jun. 2005
9 G. Poitau, A. Birafane, and A. Kuki, 'Experimental characterization of LINC outphasing combiners' efficiency and linearity', Radio and Wireless Conference 2004 IEEE, pp. 87-90, Sep. 2004
10 H. Chireix, 'High power outphasing modulation', Proc. IRE., vol. 23, pp. 1370-1392, Nov. 1935   DOI
11 S. H. Ji, C. S. Cho, J. W. Lee, and J. Kim, '836 MHz/1.95 GHz dual-band class-E power amplifier using composite right/left-handed transmission lines', 36th European Microwave Conference Proceedings, pp. 356-359, 2002