Journal of electromagnetic engineering and science

  • 제11권2호
  • /
  • Pages.76-82
  • /
  • 2011
  • /
  • 2671-7255(pISSN)
  • /
  • 2671-7263(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
권호 표지
DOI QR코드

DOI QR Code

Dual-Band Negative Group Delay Circuit Using λ/4 Composite Right/Left-Handed Short Stubs

  • Choi, Heung-Jae (Department of Electronics and Information Engineering, Chonbuk National University) ;
  • Mun, Tae-Su (Department of Electronics and Information Engineering, Chonbuk National University) ;
  • Jeong, Yong-Chae (Department of Electronics and Information Engineering, Chonbuk National University) ;
  • Lim, Jong-Sik (Department of Electrical and Communication Engineering, Soonchunhyang University) ;
  • Eom, Soon-Young (Antenna Technology Research Team, Electronics and Telecommunications Research Institute (ETRI)) ;
  • Jung, Young-Bae (Division of Electric, Electronic and Control Engineering, Hanbat National University)
  • 투고 : 2010.12.16
  • 발행 : 2011.06.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, a novel design for a dual-band negative group delay circuit (NGDC) is proposed. Composite right/left-handed (CRLH) ${\lambda}/4$ short stubs are employed as a dual-band resonator. A CRLH ${\lambda}/4$ short stub is composed of a typical transmission line element as the right-handed component and a high-pass lumped element section as the left-handed component. It is possible to simultaneously obtain open impedances at two separate frequencies by the combination of distinctive phase responses of the right/left-handed components. Negative group delay (NGD) can be obtained at two frequencies by using dual-band characteristics of the CRLH stub. In order to achieve a bandwidth extension, the proposed structure consists of a two-stage dual-band NGDC with different center frequencies connected in a cascade. According to the experiment performed, with wide-band code division multiple access (WCDMA) and worldwide interoperability for microwave access (WiMAX), NGDs of $-3.0{\pm}0.4$ ns and $-3.1{\pm}0.5$ ns are obtained at 2.12~2.16 GHz and 3.46~3.54 GHz, respectively.

키워드

참고문헌

  1. H. Choi, Y. Jeong, J. S. Kenney, and C. D. Kim, "Dual-band feedforward linear power amplifier for digital cellular and IMT-2000 base-station," Microwave Optical Technol. Lett., vol. 51, no. 4, Apr. 2009.
  2. M. R. Ghajar, S. Boumaiza, "Concurrent dual band 2.4/3.5GHz fully integrated power amplifier in 0.13 um CMOS technology," in Proc. 39th European Microwave Conf., pp. 1728-1731, Sep. 2009.
  3. D. Solli, R. Y. Chiao, "Superluminal effects and negative delays in electronics, and their applications," Physical Review E, issue 5, Nov. 2002.
  4. L. J. Wang, A. Kuzmich, and A. Dogariu, "Gain-assisted superluminal light propagation," Nature 406, pp. 277-279, Jun. 2000. https://doi.org/10.1038/35018520
  5. L. Brillouin, A. Sommerfeld, Wave Propagation and Group Velocity, Academic Press Network, pp. 113-137, 1960.
  6. S. Lucyszyn, I. D. Robertson, "Analog reflection topology building blocks for adaptive microwave signal processing applications," IEEE Trans. Microwave Theory and Tech., vol. MTT-43, no. 3, pp. 601-661, Mar. 1995. https://doi.org/10.1109/22.372106
  7. H. Noto, K. Yamauchi, M. Nakayama, and Y. Isota, "Negative group delay circuit for feed-forward amplifier," in IEEE MTT-S Int. Microwave Symp. Dig., pp. 1103-1106, Jun. 2007. https://doi.org/10.1109/MWSYM.2007.380286
  8. B. Ravelo, A. Perennec, and M. Le Roy, "Synthesis of broadband negative group delay active circuits," in IEEE MTT-S Int. Microwave Symp. Dig., pp. 2177-2180, Jun. 2007. https://doi.org/10.1109/MWSYM.2007.380357
  9. H. Choi, K. Song, C. D. Kim, and Y. Jeong, "Synthesis of negative group delay time circuit," in Asia- Pacific Microw. Conf. Dig., pp. B5-08, 2008.
  10. H. Choi, Y. Kim, Y. Jeong, and C. D. Kim, "Synthesis of reflection type negative group delay circuit using transmission line resonator," in Proc. 39th European Microwave Conf., pp. 902-905, Sep. 2009.
  11. Y. Jeong, H. Choi, and C. D. Kim, "Experimental verification for time advancement of negative group delay in RF electronics circuits," Electron. Lett., vol. 46, no. 4, pp. 306-307, Feb. 2010. https://doi.org/10.1049/el.2010.3147
  12. H. Choi, Y. Jeong, C. D. Kim, and J. S. Kenney, "Efficiency enhancement of feedforward amplifiers by employing a negative group-delay circuit," IEEE Trans. Microwave Theory and Tech., vol. 58, no. 5, pp. 1116-1125, May 2010. https://doi.org/10.1109/TMTT.2010.2045576
  13. H. Choi, Y. Jeong, C. D. Kim, and J. S. Kenney, "Bandwidth enhancement of an analog feedback amplifier by employing a negative group delay circuit," Progress in Electromagnetics Research, vol. 105, pp. 253-272, 2010. https://doi.org/10.2528/PIER10041808
  14. Y. Eom, and Y. B. Jung, "2.14/3.5 GHz novel dual- band negative group delay circuit design based on composite right/left-handed transmission line," in Proc. 40th European Microwave Conf., pp. 441- 444, Sep. 2010.
  15. 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. on Microwave Theory and Tech., vol. 52, pp. 980-992, Mar. 2004. https://doi.org/10.1109/TMTT.2004.823579
  16. P. Chi, T. Itoh, "Miniaturized dual-band directional couplers using composite right/left-handed transmission structures and their applications in beam pattern diversity systems", IEEE Trans. on Microwave Theory and Tech., vol. MTT-57, no. 5, pp. 1207- 1215, May 2009. https://doi.org/10.1109/TMTT.2009.2017350
  17. I. S. Kim, C. S. Lee, "A study on broadband hybrid design using vertically installed planar circuit with partially removed ground plane," Journal of KIEES, vol. 16, no. 7, pp. 661-670, Jul. 2005.

피인용 문헌

  1. Control of Phase and Phase Slope with Reinvestigation of 1D CRLH Transmission Lines vol.12, pp.4, 2012, https://doi.org/10.5515/JKIEES.2012.12.4.280