volume | PIER Journals

Abstract

In order to solve the requirements of multi-channel communication applications, this paper proposes a miniaturized dual-passband substrate integrated waveguide filter with asymmetric passband response. The design uses a half-mode substrate integrated waveguide (HMSIW) cavity, which is loaded with a back-to-back complementary open resonant ring (CSRR) according to the vanishing mode propagation theory to generate a passband response lower than the HMSIW basic mode TE101, further reducing the cavity size. In addition, the band-resistive characteristics of the single-ring structure of the CSRR resonator are analyzed, and a C-slot is added at the feeder to improve the out-of-band characteristics of the second passband. Through simulation optimization and testing, the center frequency of the dual-passband filter is 4.05 GHz/8.64 GHz; the relative bandwidth is 16%/44%, the insertion loss of both passbands is better than 0.8 dB; the physical test results are consistent with the simulation ones; and the size of the filter is only 0.42λ_g × 0.14λ_g. It shows that the proposed filter has the characteristics of small size and low loss, and can be widely used in multi-channel RF front-end systems in the field of wireless communication.

1. Song, Kaijun, Yu Zhu, and Fan Zhang, "Single-and dual-band filtering-response power dividers embedded SIW filter with improved output isolation," Scientific Reports, Vol. 7, No. 1, 3361, 2017. Google Scholar

2. Jiang, Di, Yupeng Liu, Xiaoyu Li, Guofu Wang, and Zhi Zheng, "Tunable microwave bandpass filters with complementary split ring resonator and liquid crystal materials," IEEE Access, Vol. 7, 126265-126272, 2019. Google Scholar

3. Pelluri, Sambaiah and M. V. Kartikeyan, "Widely separated dual‐band half‐mode SIW bandpass filter," International Journal of RF and Microwave Computer-Aided Engineering, Vol. 30, No. 10, e22360, 2020. Google Scholar

4. Hinojosa, Juan, Marcello Rossi, Adrian Saura-Ródenas, Alejandro Álvarez-Melcón, and Félix Lorenzo Martínez-Viviente, "Compact bandstop half-mode substrate integrated waveguide filter based on a broadside-coupled open split-ring resonator," IEEE Transactions on Microwave Theory and Techniques, Vol. 66, No. 6, 3001-3010, 2018. Google Scholar

5. Xie, Hao-Wei, Kang Zhou, Chun-Xia Zhou, and Wen Wu, "Compact wide‐stopband SIW dual‐band filter with closely spaced passbands," Electronics Letters, Vol. 56, No. 16, 822-825, 2020. Google Scholar

6. Zhou, Kang, Chun-Xia Zhou, Hao-Wei Xie, and Wen Wu, "Synthesis design of SIW multiband bandpass filters based on dual-mode resonances and split-type dual-and triple-band responses," IEEE Transactions on Microwave Theory and Techniques, Vol. 67, No. 1, 151-161, 2018. Google Scholar

7. Zhu, Yilong and Yuandan Dong, "Novel double-layer SIW filter with mechanically adjustable frequency response," IEEE Microwave and Wireless Components Letters, Vol. 31, No. 4, 357-360, 2021. Google Scholar

8. Yin, B., Q.-q. Huang, X.-L. Zhang, J.-L. Liu, J.-H. Xia, Y.-Y. Zhang, and J.-R. Liang, "Bandpass filters combined siw with asymmetric circle complementary spilt-ring resonator," Chinese Jounal of Electron Devices, Vol. 44, No. 05, 1072-1077, 2021. Google Scholar

9. Yin, B., X. Cai, and S. Zhang, "Design of compact CRLH bandpass filter based on structure of CSRR-SIW," Journal of Chongqing University of Posts and Telecommunications (Natural Science Edition), Vol. 30, No. 2, 243-248, 2018. Google Scholar

10. Liu, Bao-Guang, Yun-Peng Lyu, Lei Zhu, and Chong-Hu Cheng, "Compact single-and dual-band filters on hexa-modes half-mode substrate integrated waveguide resonator with loaded H-shaped slot," IEEE Microwave and Wireless Components Letters, Vol. 30, No. 12, 1129-1132, 2020. Google Scholar

11. Muchhal, Nitin and Shweta Srivastava, "Design of miniaturized diamond shaped substrate integrated waveguide CSRR band pass filter for X band applications," 2019 International Conference on Signal Processing and Communication (ICSC), 113-116, IEEE, Noida, India, 2019.

12. Zhou, Kang, Chun-Xia Zhou, and Wen Wu, "Dual-mode characteristics of half-mode SIW rectangular cavity and applications to dual-band filters with widely separated passbands," IEEE Transactions on Microwave Theory and Techniques, Vol. 66, No. 11, 4820-4829, 2018. Google Scholar

13. Wu, J., Y. Huang, and Z. Xue, "Coplanar waveguide dual-passband filter based on zero-degree feed," Electronic Components & Materials, Vol. 46, No. 10, 1227-1231, 2023. Google Scholar

14. Li, Di, Chun Wang, Xinhui Cui, Dongdong Chen, Chunlong Fei, and Yintang Yang, "Recent progress and development of interface integrated circuits for piezoelectric energy harvesting," Nano Energy, Vol. 94, 106938, 2022. Google Scholar

15. Shi, Ling-Feng, Chen-Yang Sun, Sen Chen, Gong-Xu Liu, and Yi-Fan Shi, "Dual-band substrate integrated waveguide bandpass filter based on CSRRs and multimode resonator," International Journal of RF and Microwave Computer-Aided Engineering, Vol. 28, No. 9, e21412, 2018. Google Scholar

16. Zheng, Yan and Yuandan Dong, "Miniaturized hybrid filter using stripline and LC-loaded SIW resonators," IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 69, No. 9, 3719-3723, 2022. Google Scholar

17. Zhang, Hao, Wei Kang, and Wen 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. Google Scholar

18. Gao, Mingming, Min Li, Jingchang Nan, and Yuan Wang, "New dual-passband SIW filter with loaded T-slot," Progress In Electromagnetics Research C, Vol. 124, 243-252, 2022. Google Scholar

19. Liang, Junrui and Wei-Hsin Liao, "Improved design and analysis of self-powered synchronized switch interface circuit for piezoelectric energy harvesting systems," IEEE Transactions on Industrial Electronics, Vol. 59, No. 4, 1950-1960, 2011. Google Scholar

20. Nosrati, Amir, Mahmoud Mohammad-Taheri, and Mehdi Nosrati, "Gap-coupled dual-band evanescent-mode substrate integrated band-pass filter waveguide," Progress In Electromagnetics Research Letters, Vol. 89, 53-59, 2020. Google Scholar

21. Shen, Hui, Jinhao Qiu, Hongli Ji, Kongjun Zhu, and Marco Balsi, "Enhanced synchronized switch harvesting: A new energy harvesting scheme for efficient energy extraction," Smart Materials and Structures, Vol. 19, No. 11, 115017, 2010. Google Scholar

22. Xu, Shanshan, Kaixue Ma, Fanyi Meng, and Kiat Seng Yeo, "Novel defected ground structure and two-side loading scheme for miniaturized dual-band SIW bandpass filter designs," IEEE Microwave and Wireless Components Letters, Vol. 25, No. 4, 217-219, 2015. Google Scholar

23. He, Zhaosheng, Zhenhai Shao, Xiang Li, and Mengkui Shen, "A dual-band bandpass filter based on hybrid structure of substrate integrated waveguide and substrate integrated coaxial line," 2016 IEEE MTT-S International Microwave Symposium (IMS), 1-4, IEEE, San Francisco, CA, USA, 2016.

Dr. Min Li

Dr. Kejun Chang

Dr. Dongya Song