volume | PIER Journals

Abstract

This paper presents a dual-band microstrip filter with left-handed characteristics, featuring high selectivity and miniaturization. The design achieves negative permittivity and permeability by integrating H-shaped complementary split-ring resonators (CSRRs) within a substrate integrated waveguide (SIW). To enhance out-of-band rejection performance, a defected ground structure (DGS) is introduced. By applying the Half Mode SIW (HMSIW) principle, the equivalent magnetic walls of the SIW are cut, resulting in a 50% size reduction. Dual-frequency characteristics are realized using a symmetrical H-shaped CSRR, with the filter operating in the Sub-6G frequency band. Experimental results demonstrate that the filter exhibits good selectivity and low insertion loss at 3.5 GHz and 4.8 GHz. Tuning of the second frequency band is achieved by adjusting the coupling distance between the CSRR and metal via. This work has significant application potential in the fields of wireless communication and RF technology. The study provides theoretical support and technical insights for the design of future compact multi-band filters.

1. Veselago, V. G., "The electrodynamics of substances with simultaneously negative values of ε and μ," Usp. Fiz. Nauk, Vol. 92, No. 3, 517-526, 1967.

2. Pendry, John B., A. J. Holden, D. J. Robbins, and W. J. Stewart, "Magnetism from conductors and enhanced nonlinear phenomena," IEEE Transactions on Microwave Theory and Techniques, Vol. 47, No. 11, 2075-2084, Nov. 1999.

3. Shelby, Richard A., David R. Smith, and Seldon Schultz, "Experimental verification of a negative index of refraction," Science, Vol. 292, No. 5514, 77-79, 2001.

4. Falcone, F., T. Lopetegi, J. D. Baena, R. Marques, F. Martin, and M. Sorolla, "Effective negative-/spl epsiv/stopband microstrip lines based on complementary split ring resonators," IEEE Microwave and Wireless Components Letters, Vol. 14, No. 6, 280-282, Jun. 2004.

5. Che, Wenquan, Chao Li, Kuan Deng, and Lisheng Yang, "A novel bandpass filter based on complementary split rings resonators and substrate integrated waveguide," Microwave and Optical Technology Letters, Vol. 50, No. 3, 699-701, Mar. 2008.

6. Choudhary, Dilip Kumar and Raghvendra Kumar Chaudhary, "A compact SIW based filtering power divider with improved selectivity using CSRR," 2017 Progress in Electromagnetics Research Symposium - Fall (PIERS - FALL), 1334-1337, Singapore, 2017.

7. Liu, Zheng, Gaobiao Xiao, and Lei Zhu, "Triple-mode bandpass filters on CSRR-loaded substrate integrated waveguide cavities," IEEE Transactions on Components, Packaging and Manufacturing Technology, Vol. 6, No. 7, 1099-1105, Jul. 2016.

8. Dong, Yuandan and Tatsuo Itoh, "Miniaturized dual-band substrate integrated waveguide filters using complementary split-ring resonators," 2011 IEEE MTT-S International Microwave Symposium, 1-4, Baltimore, MD, USA, 2011.

9. Zhang, Qiao-Li, Wen-Yan Yin, Sailing He, and Lin-Sheng Wu, "Compact substrate integrated waveguide (SIW) bandpass filter with complementary split-ring resonators (CSRRs)," IEEE Microwave and Wireless Components Letters, Vol. 20, No. 8, 426-428, Aug. 2010.

10. Zhang, Sheng, Jia-Yu Rao, Jia-Sheng Hong, and Fa-Lin Liu, "A novel dual-band controllable bandpass filter based on fan-shaped substrate integrated waveguide," IEEE Microwave and Wireless Components Letters, Vol. 28, No. 4, 308-310, Apr. 2018.

11. Urick, Vincent J., Frank Bucholtz, Preetpaul S. Devgan, Jason D. McKinney, and Keith J. Williams, "Phase modulation with interferometric detection as an alternative to intensity modulation with direct detection for analog-photonic links," IEEE Transactions on Microwave Theory and Techniques, Vol. 55, No. 9, 1978-1985, Sep. 2007.

12. Touiss, Tarik, Mohammed R. Qasem, Siham Machichi, Farid Falyouni, and Driss Bria, "New THz notch filter based on cylindrical periodic structure," Progress In Electromagnetics Research Letters, Vol. 121, 51-56, 2024.

13. Bozzi, Maurizio, Anthimos Georgiadis, and Kaijie Wu, "Review of substrate-integrated waveguide circuits and antennas," IET Microwaves, Antennas & Propagation, Vol. 5, No. 8, 909-920, 2011.

14. Numan, Ahmad B. and Mohammad S. Sharawi, "Extraction of material parameters for metamaterials using a full-wave simulator [education column]," IEEE Antennas and Propagation Magazine, Vol. 55, No. 5, 202-211, 2013.

15. Hong, Wei, Bing Liu, Yuanqing Wang, Qinghua Lai, Hongjun Tang, Xiao Xin Yin, Yuan Dan Dong, Yan Zhang, and Ke Wu, "Half mode substrate integrated waveguide: A new guided wave structure for microwave and millimeter wave application," 2006 Joint 31st International Conference on Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 219-219, Shanghai, China, 2006.

16. Zhang, Man, Minquan Li, P. J. Zhang, Kaiyue Duan, Baokun Jin, Lichang Huang, and Yawen Song, "A novel miniaturized bandpass filter basing on stepped-impedance resonator," Progress In Electromagnetics Research Letters, Vol. 97, 77-85, 2021.

17. Riaz, Laeeq, Umair Naeem, and Muhammad Farhan Shafique, "Miniaturization of SIW cavity filters through stub loading," IEEE Microwave and Wireless Components Letters, Vol. 26, No. 12, 981-983, Dec. 2016.

18. Yan, Jun-Mei, Liang-Zu Cao, Juan Xu, and Ru-Shan Chen, "Design of a fourth-order dual-band bandpass filter with independently controlled external and inter-resonator coupling," IEEE Microwave and Wireless Components Letters, Vol. 25, No. 10, 642-644, Oct. 2015.

19. Li, Daotong, Yonghong Zhang, Kaida Xu, Kaijun Song, and Le-Wei Li, "Dual-band bandpass filter with good selectivity and stopband rejection," PIERS Proceedings, 582-586, Guangzhou, China, 2014.

20. Tang, Jiaming, Haiwen Liu, and Yang Yang, "Compact wide-stopband dual-band balanced filter using an electromagnetically coupled SIR pair with controllable transmission zeros and bandwidths," IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 67, No. 11, 2357-2361, Nov. 2020.

21. Zhou, Li-Heng and Jian-Xin Chen, "Differential dual-band filters with flexible frequency ratio using asymmetrical shunt branches for wideband CM suppression," IEEE Transactions on Microwave Theory and Techniques, Vol. 65, No. 11, 4606-4615, Nov. 2017.

22. Li, Peng, Hui Chu, Dan Zhao, and Ru Shan Chen, "Compact dual-band balanced SIW bandpass filter with improved common-mode suppression," IEEE Microwave and Wireless Components Letters, Vol. 27, No. 4, 347-349, Apr. 2017.

23. Ren, Baoping, Haiwen Liu, Zhewang Ma, Masataka Ohira, Pin Wen, Xiaolong Wang, and Xuehui Guan, "Compact dual-band differential bandpass filter using quadruple-mode stepped-impedance square ring loaded resonators," IEEE Access, Vol. 6, 21850-21858, 2018.

Dr. Zhonghui Li

Ms. Chen Li

Professor Minquan Li