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http://dx.doi.org/10.5515/JKIEES.2012.12.4.280

Control of Phase and Phase Slope with Reinvestigation of 1D CRLH Transmission Lines  

Jeon, Dongho (Dept. of Electronics and Radio Engineering, College of Electronics and Information, Kyung Hee University)
Lee, Bomson (Dept. of Electronics and Radio Engineering, College of Electronics and Information, Kyung Hee University)
Publication Information
Abstract
The conventionally classified waves are reclassified in this paper, including the waves associated with metamaterial (MTM) transmission lines. Various types of guided waves in periodic structures are analyzed for 1D Composite Right/Left Handed (CRLH) transmission lines (TL). In addition, dispersion diagrams for 1D CRLH, RH, and LH TLs are presented in terms of radiation conditions. We have refined the design equations of the conventional 1D CRLH TL and proposed a condition to realize the desired phase shift and its slope per unit cell. This condition has been applied to the conventional Wilkinson power divider and realized into MTM added $90^{\circ}$ hybrid coupler. Based on the 10 dB return loss and the $90{\pm}10^{\circ}$ phase shift, the bandwidths of the MTM added $90^{\circ}$ hybrid coupler are 82.25% and 103.5% against the conventional 23% and 52.5%, respectively.
Keywords
Metamaterial; CRLH; Phase Shift; Phase Slope;
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Times Cited By KSCI : 5  (Citation Analysis)
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1 G. V. Eleftheriades, A. K. Iyer, and P. C. Kremer, "Planar negative refractive index media using periodically L-C loaded transmission lines," IEEE Trans. Microwave Theory and Tech., vol. 50, no. 12, pp. 2702-2172, Dec. 2002.   DOI   ScienceOn
2 H. Okabe, C. Caloz, and T. Itoh, "A compact enhanced bandwidth hybrid ring using an artificial lumped- element left-handed transmission-line section," IEEE Trans. Microwave Theory Tech., vol. 52, no. 3, pp. 798-804, Mar. 2004.   DOI   ScienceOn
3 S. Lim, Christophe C. Caloz, and T. Itoh, "Metamaterial- based electronically controlled transmission-line structure as a novel leaky-wave antenna with tunable radiation angle and beam width," IEEE Trans. Microwave Theory Tech., vol. 53, no. 1, pp. 161-173, Jan. 2005.   DOI   ScienceOn
4 C. Caloz, T. Itoh, "Transmission line approach of lefthanded (LH) materials and microstrip implementation of an artificial LH transmission line," IEEE Trans. Antennas and Propagation, vol. 52, no. 5, pp. 1159-1166, May 2004.   DOI   ScienceOn
5 S. Kahng, "Study on wave absorption of 1D-/2Dperiodic EBG structures and/or metamaterial layered media as frequency selective surfaces," Journal of The Korean Institute of Electromagnetic Engineering and Science, vol. 9, no. 1, pp. 46-52, Mar. 2009.   DOI   ScienceOn
6 H. Ahn, B. Kim, "Equivalent transmission-line sections for very high impedances and their application to branch-line hybrids with very weak coupling power," Journal of The Korean Institute of Electromagnetic Engineering and Science, vol. 9, no. 2, pp. 85-97, Jun. 2009.   과학기술학회마을   DOI   ScienceOn
7 T. -G. Kim, B. Lee, "Metamaterial-based wideband rat-race hybrid coupler using wave lines," IET Microwaves, Antennas & Propagation, vol. 4, no. 6, pp. 717-721, Jun. 2010.   DOI   ScienceOn
8 Y. Jung, B. Lee, "Design of compact and wideband metamaterial balun based on closed-form solutions," Microwave and Optical Technology Letters, vol. 52, no. 5, pp. 1153-1156, May 2010.   DOI   ScienceOn
9 M. A. Antoniades, G. V. Eleftheriades, "A broadband Wilkinson balun using microstrip metamaterial lines", IEEE Trans. Antennas & Propagation, vol. 4, no. 5, pp. 209-212, 2005.
10 H. Choi, T. Mun, Y. Jeong, J. Lim, S. Eom, and Y. Jung, "Dual-band group dealy circuit using λ/4 composite right/left-handed short stubs," Journal of The Korean Institute of Electromagnetic Engineering and Science, vol. 11, no. 2, pp. 76-82, Jun. 2011.   DOI   ScienceOn
11 D. Kim, "A sub-wavelength focusing lens composed of a dual-plate metamaterial providing a negative refractive index," Journal of The Korean Institute of Electromagnetic Engineering and Science, vol. 12, no. 1, pp. 26-31, Mar. 2012.   과학기술학회마을   DOI   ScienceOn
12 Y. Lee, H. Chung, and J. Choi, "Improving the isolation of MIMO antennas using split ring resonator," Journal of The Korean Institute of Electromagnetic Engineering and Science, vol. 10, no. 4, pp. 303-308, Dec. 2010.   DOI   ScienceOn
13 S. Jang, B. Lee, "Investigation of 1-D meta-structured leaky wave antennas using transmission line theory considering radiation effects," IEEE Antennas & Propagation Society International Symposium, Jun. 2009.
14 T. -G Kim, B. Lee, "Modeling and analysis of radiation effects for one-dimensional metamaterialbased transmission lines," IET, Microwaves, Antennas & Propagation, vol. 4, issue 3, pp. 289-295, Mar. 2010.