volume | PIER Journals

Abstract

This paper proposes a novel bandpass filter for L-band based on CRLH TL, which is mainly formed by coupling a high-pass characteristic module with a low-pass characteristic module in a cascade. The high-pass module consists of an interdigitated coupled line and a grounding via, owning to its singular characteristics, which the miniaturization is realized. The low-pass module is composed of a C-type resonator with high-low impedance lines, which can realize great sideband attenuation characteristics. To further improve its out-of-band rejection characteristics, a complementary split-ring resonator (CSRR) defective ground structure with single-pole attenuation characteristics is loaded, and a transmission zero is introduced at 2.5f₀ out-of-band. The test results are in great agreement with the simulation ones, and the dimensions are only 0.20λ_g*0.22λ_g. Compared with other similar types, the filter proposed in this paper has miniaturization, great passband selection characteristics, stopband characteristics, and the advantage of low insertion loss.

1. Wang, C.-X., F. Haider, X. Gao, et al. "Cellular architecture and key technologies for 5G wireless communication networks," IEEE Communications Magazine, Vol. 52, No. 2, 122-130, 2014.
doi:10.1109/MCOM.2014.6736752 Google Scholar

2. Chu, C. and X. Liao, "Modeling of an 8–12 GHz receiver front-end based on an in-line MEMS frequency discriminator," Solid State Electronics, Vol. 144, No. 7, 54-59, 2018.
doi:10.1016/j.sse.2018.03.002 Google Scholar

3. Hong, J. S., "Microstrip filters for RF/microwave applications," IEEE Microwave Magazine, Vol. 3, No. 3, 62-65, 2002. Google Scholar

4. Veselago, V. G., "The electrodynamics of substances with simultaneously negative values of ε and μ," Physics-Uspekhi, Vol. 10, No. 4, 509-514, 1968.
doi:10.1070/PU1968v010n04ABEH003699 Google Scholar

5. Pendry, J., B. Holden, et al. "Magnetism from conductors and enhanced nonlinear phenomena," IEEE Transactions on Microwave Theory & Techniques, Vol. 47, No. 11, 2075-2084, 1999.
doi:10.1109/22.798002 Google Scholar

6. Smith, D. R., W. J. Padilla, D. C. Vier, et al. "Composite medium with simultaneously negative permeability and permittivity," Physical Review Letters, Vol. 84, No. 18, 4184-4178, 2000.
doi:10.1103/PhysRevLett.84.4184 Google Scholar

7. Eleftheriades, G. V., A. K. Iyer, and P. C. Kremer, "Planar negative refractive index media using periodically L-C loaded transmission lines," IEEE Transactions on Microwave Theory & Techniques, Vol. 50, No. 12, 2702-2712, 2002.
doi:10.1109/TMTT.2002.805197 Google Scholar

8. Keshavarz, S. and N. Nozhat, "“Dual-band Wilkinson power divider based on composite right/left-handed transmission lines," 13th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2016. Google Scholar

9. Keshavarz, S., R. Keshavarz, and A. Abdipour, "Compact active duplexer based on CSRR and interdigta loaded microstrip coupled lines for LTE application," Progress In Electromagnetics Research C, Vol. 109, 27-37, 2021.
doi:10.2528/PIERC20112307 Google Scholar

10. Keshavarz, S., A. Abdipour, A. Mohammadi, et al. "Design and implementation of low loss and compact microstrip triplexer using CSRR loaded coupled lines," AEU --- International Journal of Electronics and Communications, Vol. 111, 152913-152913, 2019.
doi:10.1016/j.aeue.2019.152913 Google Scholar

11. Gong, J. Q. and Q. X. Chu, "Miniaturized microstrip bandpass filter using coupled SCRLH zerothorder resonators," Microwave & Optical Technology Letters, Vol. 51, No. 12, 2985-2989, 2009.
doi:10.1002/mop.24808 Google Scholar

12. Sanz, V., A. Belenguer, L. Martinez, et al. "Balanced right/left-handed coplanar waveguide with stub-loaded split-ring resonators," IEEE Antennas and Wireless Propagation Letters, Vol. 65, No. 13, 193-196, 2014.
doi:10.1109/LAWP.2014.2301017 Google Scholar

13. Chu, Q.-X., J.-Q. Huang, et al. "Compact ultra-wideband filter with dual notched bands based on complementary split ring resonators," Microwave and Optical Technology Letters, Vol. 52, No. 11, 2509-2512, 2010.
doi:10.1002/mop.25554 Google Scholar

14. Choudhary, D. K. and R. K. Chaudhary, "Vialess wideband bandpass filter using CRLH transmission line with semi-circular stub," International Conference on Microwave and Photonics (ICMAP), 1-2, 2015. Google Scholar

15. Zhang, H., W. Kang, and W. Wu, "Miniaturized dual-band differential filter based on CSRR-loaded dual-mode SIW cavity," IEEE Microwave and Wireless Components Letters, Vol. 28, No. 10, 897-899, 2018.
doi:10.1109/LMWC.2018.2867082 Google Scholar

16. Iyer, A. K. and G. V. Eleftheriades, "Negative refractive index metamaterials supporting 2-D waves," IEEE MTT-S International Microwave Symposium Digest, Vol. 2, No. 10, 1067-1070, 2002. Google Scholar

17. Wu, Y. M., "Design of phase-shifter using composite right-left handed transmission line," Journal of Antennas, Vol. 06, No. 4, 61-69, 2017.
doi:10.12677/JA.2017.64008 Google Scholar

18. Park, J.-I., et al. "Modeling of a photonic bandgap and its application for the low-pass filter design," Asia Pacific Microwave Conference, Vol. 2, No. 10, 331-334, 1999. Google Scholar

19. Ahn, D., J. S. Park, C. S. Kim, et al. "A design of the low-pass filter using the novel microstrip defected ground structure," IEEE Transactions on Microwave Theory & Techniques, Vol. 49, No. 1, 86-93, 2001.
doi:10.1109/22.899965 Google Scholar

20. Gómez-García, R., J. Munoz-Ferreras, D. Psychogiou, et al. "Balanced symmetrical quasireflectionless single-and dual-band bandpass planar filters," IEEE Microwave and Wireless Components Letters, Vol. 28, No. 9, 798-800, 2018.
doi:10.1109/LMWC.2018.2856400 Google Scholar

21. Jones, T. R. and M. Daneshmand, "Miniaturized slotted bandpass filter design using a ridged half-mode substrate integrated waveguide," IEEE Microwave and Wireless Components Letters, Vol. 29, No. 5, 334-336, 2016.
doi:10.1109/LMWC.2016.2549000 Google Scholar

22. Luo, C., et al. "Quasi-reflectionless microstrip bandpass filters using bandstop filter for out-of-band improvement," IEEE Transactions on Circuits and Systems II, Vol. 1109, No. 10, 1849-1853, 2019. Google Scholar

23. Psychogiou, D. and R. Gómez-García, "Multi-mode-cavity-resonator-based bandpass filters with multiple levels of transfer-function adaptivity," IEEE Access, Vol. 1109, No. 10, 24759-24765, 2019.
doi:10.1109/ACCESS.2019.2900059 Google Scholar

24. Chen, C., "A coupled-line coupling structure for the design of quasi-elliptic bandpass filters," IEEE Transactions on Microwave Theory and Techniques, Vol. 66, No. 4, 1921-1925, 2018.
doi:10.1109/TMTT.2017.2783378 Google Scholar

25. Zhang, M., M. Li, K. Duan, et al. "A novel miniaturized bandpass filter basing on stepped-impedance resonator," Progress In Electromagnetics Research Letters, Vol. 97, 77-85, 2021.
doi:10.2528/PIERL21021003 Google Scholar

26. Li, M. and K. D. Xu, "Miniaturized bandpass filter using E-stub loaded CRLH-TL resonator," 17th International Symposium on Communications and Information Technologies (ISCIT), 1-3, 2017. Google Scholar

27. Numan, A. B. and M. S. Sharawi, "Extraction of material parameters for metamaterials using a full-wave simulator [Education Column]," IEEE Antennas and Propagation Magazine, Vol. 55, No. 5, 202, 2014.
doi:10.1109/MAP.2013.6735515 Google Scholar

28. Ca Loz, C. and T. Itoh, "Transmission line approach of Left-Handed (LH) materials and microstrip implementation of an artificial LH transmission line," IEEE Trans. Antennas & Propag., Vol. 52, No. 5, 1159-1166, 2004.
doi:10.1109/TAP.2004.827249 Google Scholar

Dr. Peng Wang

Dr. Kaiyue Duan

Professor Minquan Li

Dr. Man Zhang

Dr. Baokun Jin