volume | PIER Journals

Abstract

The theory of even/odd mode based dual composite right/left handed (D-CRLH) unit cells is developed, and a unified modeling approach based on stubs is presented. The theory shows that these unit cells will have left-handed behavior if the even and odd mode corresponding stubs have dual behavior. Several unit cells are investigated. The proposed models agree with EM simulations. Experimental results confirm the presented theory.

1. Caloz, C. and T. Itoh, Electromagnetic Metamaterials: Transmission Line Theory and Microwave Applications, Wiley, 2006.

2. Engheta, N. and R. W. Ziolkowski, Metamaterials: Physics and Engineering Explorations, Wiley-IEEE Press, 2006.
doi:10.1002/0471784192

3. Eleftheriades, G. and K. Balmain, Negative-refraction Metamaterials: Fundamental Principles and Applications, Wiley, 2005.
doi:10.1002/0471744751

4. Caloz, C., "Dual composite right/left-handed (D-CRLH) transmission line metamaterial," IEEE Microw. Wireless Compon. Lett., Vol. 16, No. 11, 585-587, Nov. 2006.
doi:10.1109/LMWC.2006.884773

5. Eleftheriades, G. V., "A generalized negative-refractive-index transmission-line (NRI-TL) metamaterial for dual-band and quad-band applications," IEEE Microw. Wireless Compon. Lett., Vol. 17, No. 6, 415-417, Jun. 2007.
doi:10.1109/LMWC.2007.897786

6. Safwat, A. M. E., "High impedance wire composite right/left-handed transmission lines," Microwave and Optical Technology Letters, Vol. 52, 1390-1393, 2010.
doi:10.1002/mop.25215

7. Safwat, A. M. E., "Microstrip coupled line composite right/left-handed unit cell," IEEE Microw. Wireless Compon. Lett., Vol. 19, No. 7, 434-436, Jul. 2009.
doi:10.1109/LMWC.2009.2022122

8. Fouda, A., A. M. E. Safwat, and H. El-Hennawy, "On the applications of the coupled line composite right/left-handed unit cell," IEEE Trans. Microw. Theory and Tech., Vol. 58, No. 6, 1584-1591.
doi:10.1109/TMTT.2010.2049162

9. Othman, M. A., A. D. Alwakil, M. Shafee, T. Abuelfadl, and A. M. E. Safwat, "Novel even/odd mode-based CRLH unit cells based," IEEE MTT-S Int. Microw. Symp. Dig., 1-4, 2011.

10. Alwakil, A. and A. M. E. Safwat, "Left-handed behavior of coplanar waveguide open-circuited shunt stub," IEEE Microw. Wireless Compon. Lett., Vol. 22, No. 6, 306-308, Jun. 2012.
doi:10.1109/LMWC.2012.2194994

11. Safwat, A. M. E. and T. M. Abuelfadl, "Coupled lines from filter to composite right/left handed cells," Progress In Electromagnetics Research B, Vol. 26, 451-469, 2010.
doi:10.2528/PIERB10092809

12. Esteban, J., C. Camacho-Pe~nalosa, J. Page, and T. Martin-Guerrero, "Generalized lattice network-based balanced composite right-/left-handed transmission lines," IEEE Trans. Microw. Theory and Tech., Vol. 60, No. 8, 2385-2393, Aug. 2012.
doi:10.1109/TMTT.2012.2198225

13. Duran-Sindreu, M., G. Siso, J. Bonache, and F. Martin, "Planar multi-band microwave components based on the generalized composite right/left handed transmission line concept," IEEE Trans. Microw. Theory and Tech., Vol. 58, No. 12, 3382-3391, Dec. 2010.

14. Baena, J. D., J. Bonache, F. Martin, R. Sillero, F. Falcone, T. Lopetegi, M. Laso, J. Garcia-Garcia, I. Gil, I., M. Portillo, and M. Sorolla, "Equivalent-circuit models for split-ring resonators and complementary split-ring resonators coupled to planar transmission lines," IEEE Trans. Microw. Theory Tech., Vol. 53, No. 4, 1451-1461, Apr. 2005.
doi:10.1109/TMTT.2005.845211

15. Shamonin, M., E. Shamonina, V. Kalinin, and L. Solymar, "Resonant frequencies of a split ring resonator: Analytical solutions and numerical simulations," Microw. Opt. Technol. Lett., Vol. 44, No. 1, 133-136, Jan. 2005.
doi:10.1002/mop.20567

16. Collin, R. E., Foundations for Microwave Engineering, 2nd Ed., Wiley-IEEE Press, 2000.

Dr. Amr M. E. Safwat

Dr. Amr A. Ibrahim

Dr. Mohamed A. Othman

Dr. Marwah Shafee

Dr. Tamer Mostafa Abuelfadl