Revisiting composite right-/left-handed transmission lines and symmetric couplers

Document Type : Article

Author

Faculty of Electrical Engineering, Shahid Beheshti University, 1983969411, Tehran, Iran

Abstract

In this paper, some hidden aspects of composite right-/left-handed (CRLH) transmission lines (TLs) and couplers are clarified. Complete and detailed dispersion analysis of an isolated CRLH TL is presented including lossless and lossy cases based on a conventional unit cell, devised formerly. Dispersion analysis of CRLH TLs is extended form the conventional to an accurate unit cell. Capability of TLs consisting of such unit cells in supporting RLH waves is demonstrated. A pure analytical strategy is proposed for parameter extraction of CRLH TLs and symmetric couplers based on accurate circuit models. It is shown that by including loss parameters in the circuit model, there is no need to make use of curve fitting methods for parameters extraction of said couplers.

Keywords

References

References:
1. Caloz, C. and Itoh, T. "Novel microwave devices and structures based on the transmission line approach of meta-materials", IEEE MTT-S Int. Symp., Philadelphia, USA, pp. 195-198 (2003).
2. Caloz, C. and Itoh, T., Electromagnetic Metamaterials, Wiley-IEEE Press (2006).
3. Caloz, C., Sanada, A., and Itoh, T. "A novel composite right-/left-handed coupled-line directional coupler with arbitrary coupling level and broad bandwidth", IEEE Trans. Microw. Theory Tech., 52(3), pp. 980- 992 (2004).
4. Casares-Miranda, F.P., Camacho-Penalosa, C., and Caloz C. "High-gain active composite right/lefthanded leaky-wave antenna", IEEE Trans. Antennas Propag., 54(8), pp. 2292-2300 (2006).
5. Mao, S. and Wu, M. "A novel 3-dB directional coupler with broad bandwidth and compact size using composite right/left-handed coplanar waveguides", IEEE Microw. Wirel. Compon. Lett., 17(5), pp. 331-333 (2007).
6. Selvanayagam, M. and Eleftheriades, G.V. "Negative refractive-index transmission lines with expanded unit cells", IEEE Trans. Antennas Propag., 56(11), pp. 3592-3596 (2008).
7. Lai, C., Chiu, S., Li, H., et al. "Zeroth-order resonator antennas using inductor-loaded and capacitor-loaded CPWs", IEEE Trans. Antennas Propag., 59(9), pp. 3448-3453 (2011).
8. Kim, D. and Lee, J. "Beam scanning leaky-wave slot antenna using balanced CRLH waveguide operating above the cutoff frequency", IEEE Trans. Antennas Propag., 61(5), pp. 2432-2440 (2013).
9. Chi, P. and Liu, C. "Novel dual-band quasi-0-dB coupled-line coupler using the composite right/lefthanded transmission lines", IEEE Trans Compon Packaging Manuf Technol, 4(2), pp. 259-267 (2014).
10. Ma, Z.L., Jiang, L.J., Gupta, S., et al. "Dispersion characteristics analysis of one dimensional multiple periodic structures and their applications to antennas", IEEE Trans. Antennas Propag., 63(1), pp. 113-121 (2015).
11. Qamar, Z., Zheng, S.Y., Chan, W.S., et al. "An equal-length multiway differential metamaterial phase shifter", IEEE Trans. Microw. Theory Tech., 65(1), pp. 136-146 (2017).
12. Bemani, M., Nikmehr, S., and Fozi, M. "A dualband feed network for series-fed antenna arrays using extended composite right/left-handed transmission lines", IEEE Trans. Antennas Propag., 65(1), pp. 178- 189 (2017).
13. Che, B.J., Jin, T., Erni, D., et al. "Electrically controllable composite right/left-handed leaky-wave antenna using liquid crystals in PCB technology", IEEE Trans. Compon. Packaging Manuf. Technol., 7(8), pp. 1331- 1342 (2017).
14. Ren, D., Choi, J.H., and Itoh, T. "Series feed networks for dual-polarized frequency scanning phased array antenna based on composite right/left-handed transmission line", IEEE Trans. Microw. Theory Tech, 65(12), pp. 5133-5143 (2017).
15. Yan, S. and Vandenbosch, G.A.E. "Low-profile dualband pattern diversity patch antenna based on composite right/left-handed transmission line", IEEE Trans. Antennas Propag., 65(6), pp. 2808-2815 (2017).
16. Shen, G., Che, W., Xue, Q., et al. "Characteristics of dual composite right/left-handed unit cell and its applications to bandpass filter design", IEEE Trans. Circuits Syst. II Express Briefs, 65(6), pp. 719-723 (2018).
17. Liu, F.X., Wang, Y., Zhang, S.P., et al. "Design of compact tri-band gysel power divider with zero-degree composite right-/left-hand transmission lines", IEEE Access, 7, pp. 34964-34972 (2019).
18. Yang, X., Xiao, J., Wang, J., et al. "Compact frequency reconfigurable antennas based on composite right/left-handed transmission line", IEEE Access, 7, pp. 131663-131671 (2019).
19. Ueda, T., Kubo, Y., Kaneda, T., et al. "Dispersion-free and tunable nonreciprocities in composite right-/lefthanded metamaterials and their applications to beam squint reduction in leaky-wave antennas", IEEE Trans. Microw. Theory Tech., 67(6), pp. 2227-2237 (2019).
20. Chen, S.L., Karmokar, D.K., Li, Z., et al. "Continuous beam scanning at a fixed frequency with a composite right-/left-handed leaky-wave antenna operating over a wide frequency band", IEEE Trans. Antennas Propag., 67(12), pp. 7272-7284 (2019).
21. Szymanski, L. and Grbic, A. "2-D circuit-based bianisotropic omega media", IEEE Trans. Antennas Propag., 68(11), pp. 7395-7405 (2020).
22. Debabrata, K.K., Guo, Y.J., Chen, S.L., et al. "Composite right/left-handed leaky-wave antennas for wideangle beam scanning with flexibly chosen frequency Range", IEEE Trans. Antennas Propag., 68(1), pp. 100-110 (2020).
23. Caloz, C. and Itoh, T. "Lossy transmission line metamaterials", Microw. Opt. Technol. Lett., 43(2), pp. 112-114 (2004).
24. Harrington, R.F., Time-Harmonic Electromagnetic Fields, Wiley-IEEE Press (2001).
25. Pozar, D.M., Microwave Engineering, John Wiley & Sons, Inc. (2012).
Scientia Iranica
Volume 30, Issue 3
Transactions on Computer Science & Engineering and Electrical Engineering (D)
May and June 2023
Pages 1139-1147

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