A reconfigurable half-mode substrate integrated waveguide (HMSIW) bandpass filter (BPF) loaded by complementary split-ring resonator (CSRR) is investigated. The proposed HMSIW-CSRR structure allows the implementation of a forward-wave passband propagating below the characteristic cutoff frequency of the waveguide. By changing the effective capacitance to ground of the CSRR, frequency tuning of the resonator is observed without other external circuit. The proposed filter exhibits improved selectivity due to the employment of the pseudo-S defected structure to generate transmission zero at the low stopband. To verify the presented design method, the predicted compact reconfigurable filter, tuned between 3.6 GHz and 4.5 GHz with insertion loss less than 3.6 dB and return loss better than 17 dB, is fabricated based on the standard printed circuit board process. The measured results are in good agreement with the simulation.
2. Li, D., C. Tong, J. Bao, P. Peng, and D. Yu, "A novel bandpass filter of substrate integrated waveguide (SIW) based on S-shaped EBG," Progress In Electromagnetics Research Letters, Vol. 36, 191-200, 2013.
3. Hao, Z. C., W. Hong, J. X. Chen, X. P. Chen, and K. Wu, "Compact super-wide bandpass substrate integrated waveguide (SIW) filters," IEEE Trans. Microw. Theory Tech., Vol. 53, No. 9, 2968-2977, Sep. 2005.
doi:10.1109/TMTT.2005.854232
4. Zhang, Y. L., W. Hong, K. Wu, J. X. Chen, and H. J. Tang, "Novel substrate integrated waveguide cavity filter with defected ground structure," IEEE Trans. Microw. Theory Tech., Vol. 53, 1280-1286, 2005.
doi:10.1109/TMTT.2005.845750
5. Wei, Q.-F., Z.-F. Li, L.-S. Wu, and L. Li, "A novel multilayered cross-coupled substrate-integrated waveguide (SIW) circular cavity filter in LTCC," Microwave and Optical Technology Letters, Vol. 51, 1686-1689, 2009.
doi:10.1002/mop.24435
6. Zhang, Q., B. Wang, W. Yin, and L. Wu, "Design of a miniaturized dual-band double-folded substrate integrated waveguide bandpass filter with controllable band-widths," Progress In Electromagnetics Research, Vol. 136, 211-223, 2013.
7. Bahrami, H., M. Hakkak, and A. Pirhadi, "Analysis and design of highly compact bandpass waveguide filter utilizing complementary split ring resonators (CSRR)," Progress In Electromagnetics Research, Vol. 80, 107-122, 2008.
8. Sekar, V. and K. Entesari, "A novel compact dual-band half-mode substrate integrated waveguide bandpass filter," 2011 IEEE MTT-S International Microwave Symposium Digest (MTT), 1-4, Piscataway, NJ, USA, Jun. 5-10, 2011.
9. Wang, Y., W. Hong, Y. Dong, B. Liu, H. J. Tang, J. Chen, X. Yin, and K. Wu, "Half mode substrate integrated waveguide (HMSIW) bandpass filter," IEEE Microwave and Wireless Components Letters, Vol. 17, 265-267, 2007.
doi:10.1109/LMWC.2007.892958
10. Senior, D. E., X. Cheng, and Y.-K. Yoon, "Electrically tunable evanescent mode half-mode substrate-integrated-waveguide resonators," IEEE Microwave and Wireless Components Letters, Vol. 22, 123-125, 2012.
doi:10.1109/LMWC.2012.2183860
11. Domg, Y. D., T. Yang, and T. Itoh, "Substrate integrated waveguide loaded by complementary split-ring resonators and its applications to miniaturized waveguide filters," IEEE Trans. Microw. Theory Tech., Vol. 57, 2211-2223, 2009.
doi:10.1109/TMTT.2009.2027156
12. Senior, D. E., X. Chen, M. Machado, and Y.-K. Yoon, "Single and dual band bandpass filters using complementary split ring resonator loaded half mode substrate integrated waveguide," 2010 IEEE Antennas and Propagation Society International Symposium (APSURSI), 1-4, 2010.
doi:10.1109/APS.2010.5561779
13. Jarauta, E., F. Falcone, M. Beruete, and J. Illescas, "Duplexers and multiplexers based on microstrip line loaded with complementary split ring resonators," Progress In Electromagnetics Research Letters, Vol. 27, 9-16, 2011.
doi:10.2528/PIERL11080107
14. Li, T. P., G. M. Wang, K. Lu, H. X. Xu, Z. H. Liao, and B. F. Zong, "Novel bandpass filter based on CSRR using Koch fractal curve," Progress In Electromagnetics Research Letters, Vol. 28, 121-128, 2012.
doi:10.2528/PIERL11082903
15. Al-Naib, I. A. I. and M. Koch, "Coplanar waveguides incorporating SRRS or CSRRS," Progress In Electromagnetics Research B, Vol. 23, 343-355, 2010.
doi:10.2528/PIERB10061602
16. Khan, S. N., X. G. Liu, L. X. Shao, and Y. Wang, "Complementary split ring resonators of large stop bandwidth," Progress In Electromagnetics Research Letters, Vol. 14, 127-132, 2010.
doi:10.2528/PIERL10033105
17. Jiang, W., W. Shen, L. Zhou, and W. Y. Yin, "Miniaturized and high-selectivity substrate integrated waveguide (SIW) bandpass filter loaded by complementary split-ring resonators (CSRRs)," Journal of Electromagnetic Waves and Applications, Vol. 26, No. 11-12, 1448-1459, 2012.
doi:10.1080/09205071.2012.702203
18. Zhang, Q. L., W. Y. Yin, S. He, and L. S. Wu, "Evanescent-mode substrate integrated waveguide (SIW) filters implemented with complementary split ring resonators," Progress In Electromagnetics Research, Vol. 111, 419-432, 2011.
doi:10.2528/PIER10110307
19. Karthikeyan, S. S. and R. S. Kshetrimayum, "Harmonic suppression of parallel coupled microstrip line bandpass filter using CSRR," Progress In Electromagnetics Research Letters, Vol. 7, 193-201, 2009.
doi:10.2528/PIERL08122602
20. Wu, G. L., W. Mu, X. W. Dai, and Y. C. Jiao, "Design of novel dual-band bandpass filter with microstrip meander-loop resonator and CSRR DGS," Progress In Electromagnetics Research, Vol. 78, 17-24, 2008.
doi:10.2528/PIER07090301
21. Jedrzejewski, A., N. Leszczynska, L. Szydlowski, and M. Mrozowski, "Zero-pole approach to computer aided design of in-line SIW filters with transmission zeros," Progress In Electromagnetics Research, Vol. 131, 517-533, 2012.
22. Huang, Y., Z. Shao, and L. Liu, "A substrate integrated waveguide bandpass filter using novel defected ground structure shape," Progress In Electromagnetics Research, Vol. 135, 201-213, 2012.
23. Xu, Z., Y. Shi, C. Xu, and P.Wang, "A novel dual mode substrate integrated waveguide filter with mixed source-load coupling (MSLC)," Progress In Electromagnetics Research, Vol. 136, 595-606, 2013.
2. Chen, L.-N., Y. C. Jiao, Z. Zhang, F. S. Zhang, and Y. Y. Chen, "Miniaturized dual-mode substrate integrated waveguide (SIW) band-pass ¯lters loaded by double/single T-shaped structures," Progress In Electromagnetics Research Letters, Vol. 29, 65-74, 2012.
doi:10.2528/PIERL11112602
25. hang, Q. L., W. Y. Yin, S. He, and L. S. Wu, "Evanescent-mode substrate integrated waveguide (SIW) filters implemented with complementary split ring resonators," Progress In Electromagnetics Research, Vol. 111, 419-432, 2011.
26. Zhou, M., M. X. Yu, J. Xu, X. C. Zhang, and M. Y. Wang, "Compact half-mode substrate integrated waveguide (HMSIW) filter with dual-mode microstrip resonator," Progress In Electromagnetics Research C, Vol. 33, 29-41, 2012.
27. Xiang, Q. Y., Q. Y. Feng, X. G. Huang, and D. H. Jia, "Substrate integrated waveguide (SIW) filters and its application to switchable filters," PIERS Proceedings, 861-863, Moscow, Russia, Aug. 19-23, 2012.
28. Djermoun, A., G. Prigent, N. Raveu, and T. Callegari, "Widely tunable high-Q SIW filter using plasma material," 2010 IEEE MTT-S International Microwave Symposium Digest (MTT), 1484-1486, 2010.
doi:10.1109/MWSYM.2010.5514787
Submit
