DOI QR코드

DOI QR Code

Isolation Circuits Based on Metamaterial Transmission Lines for Multiplexers(Invited Paper)

  • Lee, Hanseung ;
  • Itoh, Tatsuo
  • Received : 2013.08.27
  • Accepted : 2013.09.10
  • Published : 2013.09.30

Abstract

Multiplexers based on isolation circuits made of metamaterial lines are proposed and studied. The new approach provides unique advantageous features beneficial to system designer. For instance, there is no need to modify the filters used in multiplexers. Also, the design process is straightforward. In this paper, two types of multiplexers based on metamaterial isolation circuits are presented, and their operation concepts are explained. Also, theories and design process of isolation circuits are presented to help readers design and fabricate proposed multiplexers. For verifying the concepts, two types of triplexers and two types of quadruplexers are designed and fabricated. All filters used in the multiplexers are commercial surface acoustic wave filters. The measured results are well matched with the simulation results.

Keywords

Composite Right/Left Handed;Double-Lorentz;Isolation Circuit;Multiplexer;Transmission Line

References

  1. G. Macchiarella, "Synthesis of star-junction multiplexer," IEEE Microwave Magazine, vol. 12, no. 6, pp. 101-109, Oct. 2011. https://doi.org/10.1109/MMM.2011.942011
  2. G. Macchiarella and S. Tamiazzo, "Synthesis of starjunction multiplexers," IEEE Transactions on Microwave Theory and Techniques, vol. 58, no. 12, pp. 3732-3741, Dec. 2010.
  3. R. J. Cameron and M. Yu, "Design of manifold-coupled multiplexers," IEEE Microwave Magazine, vol. 8, no. 5, pp. 46-59, Oct. 2007.
  4. E. G. Cristal and G. L. Matthaei, "A technique for the design of multiplexers having contiguous channels," IEEE Transactions on Microwave Theory and Techniques, vol. 12, no. 1, pp. 88-93, Jan. 1964. https://doi.org/10.1109/TMTT.1964.1125756
  5. J. D. Rhodes and R. Levy, "A generalized multiplexer theory," IEEE Transactions on Microwave Theory and Techniques, vol. 27, no. 2, pp. 99-111, Feb. 1979. https://doi.org/10.1109/TMTT.1979.1129570
  6. K. L. Wu and W. Meng, "A direct synthesis approach for microwave filters with a complex load and its application to direct diplexer design," IEEE Transactions on Microwave Theory and Techniques, vol. 55, no. 5, pp. 1010-1017, May 2007. https://doi.org/10.1109/TMTT.2007.895175
  7. J. D. Rhodes and R. Levy, "Design of general manifold multiplexers," IEEE Transactions on Microwave Theory and Techniques, vol. 27, no. 2, pp. 111-123, Feb. 1979. https://doi.org/10.1109/TMTT.1979.1129571
  8. A. E. Atia, "Computer aided design of waveguide multiplexers," IEEE Transactions on Microwave Theory and Techniques, vol. 22, no. 3, pp. 322-336, Mar. 1974. https://doi.org/10.1109/TMTT.1974.1128217
  9. M. A. Ismail, D. Smith, A. Panariello, Y. Wang, and M. Yu, "EM-based design of large-scale dielectric resonator filters and multiplexers by space mapping," IEEE Transactions on Microwave Theory and Techniques, vol. 52, no. 1, pp. 386-392, Jan. 2004. https://doi.org/10.1109/TMTT.2003.820900
  10. I. H. Lin, M. DeVincentis, C. Caloz, and T. Itoh, "Arbitrary dual-band components using composite right/left-handed transmission lines," IEEE Transactions on Microwave Theory and Techniques, vol. 52, no. 4, pp. 1142-1149, Apr. 2004. https://doi.org/10.1109/TMTT.2004.825747
  11. A. Rennings, T. Liebig, C. Caloz, and I. Wolff, "Double- Lorentz transmission line metamaterial and its application to tri-band devices," in Proceedings of the IEEE MTT-S International Microwave Symposium, Honolulu, HI, 2007, pp. 1427-1430.
  12. H. Lee and T. Itoh, "Dual band isolation circuits based on CRLH transmission lines for triplexer application," in Proceedings of the Asia-Pacific Microwave Conference, Melbourne, Australia, 2011, pp. 542-545.
  13. H. Lee and T. Itoh, "Tri-band isolation circuits based on double-Lorentz transmission lines for quadruplexers," in Proceedings of the 42nd European Microwave Conference, Amsterdam, the Netherlands, 2012, pp. 585-588.
  14. H. Lee and T. Itoh, "Hybrid combination of dual band isolation circuits based on conventional and CRLH transmission lines for triplexers," in Proceedings of the IEEE MTT-S International Microwave Symposium, Montreal, Canada, 2012.
  15. H. Lee and T. Itoh, "Hybrid combination of triband isolation circuits based on conventional and double-Lorentz transmission lines for quadruplexers," in Proceedings of the 2013 URSI International Symposium on Electromagnetic Theory, Hiroshima, Japan, 2013, pp. 393-396.
  16. D. M. Pozar, Microwave Engineering, 3rd ed. Hoboken, NJ: John Willey & Sons, 2005.
  17. C. Caloz and T. Itoh, Electromagnetic Metamaterials: Transmission Line Theory and Microwave Applications. Hoboken, NJ: John Willey & Sons, 2006.
  18. C. Caloz, "Dual composite right/left-handed (D-CRLH) transmission line metamaterial," IEEE Microwave and Wireless Components Letters, vol. 16, no. 11, pp. 585-587, Nov. 2006. https://doi.org/10.1109/LMWC.2006.884773
  19. H. Lee and S. Nam, "Triband branch line coupler using double-Lorentz transmission lines," Microwave and Optical Technology Letters, vol. 50, no. 5, pp. 1174-1177, May 2008. https://doi.org/10.1002/mop.23311

Cited by

  1. D-CRLH Based Band Rejection Filter using a Concavo-Convex Coupled CPW Transmission Line vol.11, pp.2, 2016, https://doi.org/10.5370/JEET.2016.11.2.463