Browse > Article

A Linearity Improved Power Amplifier using Bandpass Filter Based on Composite Right-/Left-Handed Structure  

Kim, Hyoung-Jun (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.48, no.1, 2011 , pp. 92-96 More about this Journal
Abstract
In this paper, we present a bandpass filter (BPF) based on composite right-/left-handed (CRLH) structure for improving the linearity of the power amplifier. The proposed BPF consist of the inter-digit signal line on the top plane and the complementary split ring resonator (CSRR) on the bottom plane, respectively. The insertion loss is minimized at operation frequency and the 2nd harmonic is suppressed by the bandpass filter using the CRLH structure, respectively. The output power of 33 dBm, the 2nd harmonic of -53.527 dBc, 3rd inter-modulation distortion of -36.16 dBc was obtained at 2.14 GHz, respectively. Compared with the reference power amplifier, the 2nd harmonic of 16 dB and 3rd inter-modulation distortion of 12 dB have been improved at 2.14 GHz, respectively.
Keywords
Power Amplifier; Linearity; CRLH(Composite Right/Left-Handed Transmission Line);
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 S. C. Cripps, RF Power Amplifiers for Wireless Communications, MA: Artech House, 1999.
2 C. Lee, C. Seo, "EER 구조의 응용과 PBG를 이용한 고효율, 고선형성 Class-F 전력 증폭기," 전자공학회논문지, 44권, 2호, 81-86쪽, 2007년.
3 A. Lai, C. Caloz, and T. Itoh, "Composite right/left-handed transmission line metamateri-als," IEEE Microwave Magazine, vol. 5, pp. 34-50, September 2004.
4 I-Hsiang Lin, M. DeVincentis, and C. Caloz, and T. Itoh, "Arbitrary dual-band composite using composite right/left-handed transmission lines," IEEE Transactions on Microwave Theory and Techniques, vol. 52, no. 4, pp. 1142-1149, April 2004.   DOI   ScienceOn
5 J. B. Pendry, "Negative refraction makes perfect lens," Phys. Rev. Lett., vol. 85, pp. 3966-3969, 2000.   DOI   ScienceOn
6 V. G. Veselago, "The electrodynamics of substances with simul-taneously negative values of $\varepsilon$ and $\mu$," Sov. Phys.-Usp., vol. 10, pp. 509-514, 1968.   DOI   ScienceOn