2021-01-28
Quasi-TEM Analysis of Symmetrical Shielded Broadside-Coupled Microstrip Lines
By
Progress In Electromagnetics Research M, Vol. 100, 213-223, 2021
Abstract
In this work, a numerical quasi-static approach is proposed to efficiently analyze symmetrical shielded broadside-coupled microstrip line (SBCML) structures. Based on the modified least squares boundary residual method combined with a variational technique, this approach allows accurate computation of the electrical/geometrical parameters of different SBCML configurations. The errors for the quasi-TEM electrical parameters range are less than 4%. The proposed technique was demonstrated through successful comparison with data from published works and results obtained from commercial EM simulators like CST-EMS and COMSOL.
Citation
Ali Bououden, Mohamed Lahdi Riabi, Abdelhalim A. Saadi, and Mustapha C. E. Yagoub, "Quasi-TEM Analysis of Symmetrical Shielded Broadside-Coupled Microstrip Lines," Progress In Electromagnetics Research M, Vol. 100, 213-223, 2021.
doi:10.2528/PIERM20112707
References

1. Grys, D. B., R. Storch, and T. Musch, "A multisection ultra wideband directional coupler in multilayer broadside coupled stripline technology," IEEE Microwave Conf., 39-42, Bochum, Germany, 2016.        Google Scholar

2. Kim, I. B., S. K. Kim, W. Mohyuddin, H. C. Choi, and K. W. Kim, "Design of wideband directional couplers using three types of broadside coupled-lines," IEEE Int. Symp. on Antennas and Propag., 932-933, Okinawa, Japan, 2016.        Google Scholar

3. Kim, S. G. and K. Chang, "Ultrawide-band transitions and new microwave components using double-sided parallel-strip lines," IEEE Trans. Microw. Theory Tech., Vol. 52, No. 9, 2148-2152, 2004.
doi:10.1109/TMTT.2004.834165        Google Scholar

4. Moghaddam, E. S. and A. Ahmadi, "180˚ hybrid using a novel planar balun on suspended substrate for beam forming network applications," Int. J. RF Microw. Comput.-Aided Eng., Vol. 9, e22280, 2020.        Google Scholar

5. Huang, K. F. and C. K. Tzuang, "Characteristics and design of broadside-coupled transmission line at a higher order leaky mode," IEEE Trans. Microw. Theory Tech., Vol. 51, No. 2, 440-447, 2003.
doi:10.1109/TMTT.2002.807839        Google Scholar

6. Lin, S., H. Cui, L.Wu, W.Wang, and X. Sun, "Design of broadside-coupled parallel line millimetre-wave filters by standard 0.18-μm complimentary metal oxide semiconductor technology," IET Microw. Antennas Propag., Vol. 6, No. 1, 72-78, 2012.
doi:10.1049/iet-map.2011.0024        Google Scholar

7. Abbosh, A. M., "Ultra-wideband phase shifters," IEEE Trans. Microw. Theory Tech., Vol. 55, No. 9, 1935-1941, 2007.
doi:10.1109/TMTT.2007.904051        Google Scholar

8. Winslow, T. A., "A novel broadside coupler model for MMIC impedance transformer design," IEEE 41st European Microwave Conf., 309-312, Manchester, UK, 2011.        Google Scholar

9. Wong, M. F., V. F. Hanna, O. Picon, and H. Baudrand, "Analysis and design of slot-coupled directional couplers between double-sided substrate microstrip lines," IEEE Trans. Microw. Theory Tech., Vol. 39, No. 12, 2123-2129, 1991.
doi:10.1109/22.106554        Google Scholar

10. Abbosh, A. M., "Analytical closed-form solutions for different configurations of parallel-coupled microstrip lines," IET Microw. Antennas Propag., Vol. 3, No. 1, 137-147, 2009.
doi:10.1049/iet-map:20070308        Google Scholar

11. Zhu, N. H., W. Qiu, Y.-B. Pun, and P.-S. Chung, "Analysis of two-layer planar transmission lines with the point matching method," Int. J. Eletron., Vol. 80, No. 1, 99-105, 1996.
doi:10.1080/002072196137624        Google Scholar

12. Übeyli, E. D. and I. Güler, "Adaptive neuro-fuzzy inference system to compute quasi-TEM characteristic parameters of microshield lines with practical cavity sidewall profiles," Neurocomputing, Vol. 70, No. 1-3, 296-304, 2006.
doi:10.1016/j.neucom.2006.01.002        Google Scholar

13. Zitouni, A., H. Bourdoucen, and T. Nait Djoudi, "Quasi-static MoL-based approach for the analysis of multilayer transmission line structures," The International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, Vol. 10, No. 4, 209-216, 1997.
doi:10.1002/(SICI)1099-1204(199707)10:4<209::AID-JNM268>3.0.CO;2-I        Google Scholar

14. Yamashita, E. and K. Atsuki, "Strip line with rectangular outer conductor and three dielectric layers," IEEE Trans. Microw. Theory Tech., Vol. 18, No. 5, 238-244, 1970.
doi:10.1109/TMTT.1970.1127205        Google Scholar

15. Liu, J., J. Yang, and A. U. Zaman, "Analytical solutions to characteristic impedance and losses of inverted microstrip gap waveguide based on variational method," IEEE Trans. Microw. Theory Tech., Vol. 66, No. 12, 7049-7057, 2018.
doi:10.1109/TMTT.2018.2871180        Google Scholar

16. Pantic-Tanner, Z., G. Mavronikolas, and R. Mittra, "A numerical absorbing boundary condition for quasi-TEM analysis of microwave transmission lines using the finite-element method," Microw. Opt. Technol. Lett., Vol. 9, No. 3, 134-136, 1995.
doi:10.1002/mop.4650090308        Google Scholar

17. Musa, S. M. and M. N. Sadiku, "Finite element approach of shielded, suspended and inverted microstrip lines," Bull. Electr. Eng. Inform., Vol. 2, No. 1, 1-10, 2013.        Google Scholar

18. Xiao, F., M. Norgren, and S. He, "Quasi-TEM approach of coupled-microstrip lines and its application to the analysis of microstrip filters," Int. J. RF Microw. Comput.-Aided Eng., Vol. 22, No. 1, 131-139, 2012.
doi:10.1002/mmce.20592        Google Scholar

19. Tran, M. and C. Nguyen, "Modified broadside-coupled microstrip lines suitable for MIC and MMIC applications and a new class of broadside-coupled band-pass filters," IEEE Trans. Microw. Theory Tech., Vol. 41, No. 8, 1336-1342, 1993.
doi:10.1109/22.241672        Google Scholar

20. Khalaj-Amirhosseini, M., "Determination of capacitance and conductance matrices of lossy shielded coupled microstrip transmission lines," Progress In Electromagnetics Research, Vol. 50, 267-278, 2005.
doi:10.2528/PIER04061601        Google Scholar

21. Tomar, R., Y. M. Antar, and P. Bhartia, "Computer-aided-design (CAD) of suspended-substrate microstrips: An overview," Int. J. RF Microw. Comput.-Aided Eng., Vol. 15, No. 1, 44-55, 2005.
doi:10.1002/mmce.20050        Google Scholar

22. Riabi, M. L., M. Ahmadpanah, H. Benzina, H. Baudrand, and V. FouadHanna, "Performance of the MLSBR using efficient weighting functions for planar structures," IET Microw. Antennas Propag., Vol. 142, No. 4, 364-368, 1995.
doi:10.1049/ip-map:19952004        Google Scholar

23. Sakli, H., H. Benzina, T. Aguli, and J.-W. Tao, "A rigorous study of some planar structures with longitudinally magnetized ferrite by a modified LSBR method," International Journal of Microwave and Optical Technology, Vol. 4, 358-367, 2009.        Google Scholar

24. Horno, M., F. L. Mesa, F. Medina, and R. Marques, "Quasi-TEM analysis of multilayered, multiconductor coplanar structures with dielectric and magnetic anisotropy including substrate losses," IEEE Trans. Microw. Theory Tech., Vol. 38, No. 8, 1059-1068, 1990.
doi:10.1109/22.57331        Google Scholar

25. Bahl, I. J. and P. Bhartia, "Analysis of broadside coupled microstriplines," Arch. Elek. Ubertragung., Vol. 34, No. 5, 223-226, May 1980.        Google Scholar

26. Bhartia, P. and P. Pramanick, "Computer-aided design models for broadside-coupled striplines and millimeter-wave suspended substrate microstrip lines," IEEE Trans. Microw. Theory Tech., Vol. 3, No. 11, 1476-1481, 1988.
doi:10.1109/22.8910        Google Scholar

27. Kumar, R., "Design model for broadside-coupled suspended substrate stripline for microwave and millimeter-wave applications," Microw. Opt. Technol. Lett., Vol. 42, No. 4, 328-331, 2004.
doi:10.1002/mop.20293        Google Scholar

28. Musa, S. M. and M. N. Sadiku, "Modeling of shielded broadside-coupled substrate striplines," Microw. Opt. Technol. Lett., Vol. 51, No. 1, 9-13, 2009.
doi:10.1002/mop.23960        Google Scholar

29. Bhat, B. and S. K. Koul, Stripline Like Transmission Lines for Microwave Integrated Circuits, 332-961, Wiley, 1989.

30. Staszek, K., K. Wincza, and S. Gruszczynski, "Rigorous approach for design of differential coupled-line directional couplers applicable in integrated circuits and substrate-embedded networks," Nature Scientific Reports, Vol. 6, 25071, 2016.
doi:10.1038/srep25071        Google Scholar

31. https://doc.comsol.com/5.4/doc/com.comsol.help.acdc/ACDCModuleUsersGuide.pdf.