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Compact tri-wideband bandpass filter with multiple transmission zeros

  • Xiong, Yang (The Southwest China Institute of Electronic Technology) ;
  • Wang, LiTian (College of Electronic Information and Optical Engineering, Nankai University) ;
  • Gong, Li (College of Electronic Information and Optical Engineering, Nankai University) ;
  • He, KaiYong (College of Electronic Information and Optical Engineering, Nankai University) ;
  • Zhang, Man (College of Electronic Information and Optical Engineering, Nankai University) ;
  • Li, Hui (College of Electronic Information and Optical Engineering, Nankai University) ;
  • Zhao, XinJie (College of Electronic Information and Optical Engineering, Nankai University)
  • Received : 2018.05.03
  • Accepted : 2018.06.25
  • Published : 2019.02.12

Abstract

This paper presents a tri-wideband bandpass filter (TWB-BPF) with compact size, high band-to-band isolation, and multiple transmission zeros (TZs). The proposed TWB-BPF is based on a multiple-mode resonator (MMR), which is interpreted by the method of the even- and odd-mode analysis technique. The MMR can excite 11 resonant modes, where the first two modes comprise the first passband, the next four modes form the second passband, and the last five modes are used to generate the third passband. In addition, 10 TZs are yielded to obtain high band-to-band isolation and wide stopband suppression characteristics up to $14.95f_{c1}$ ($f_{c1}$ is the center frequency of the first passband). To verify the proposed filter, a TWB-BPF with 3-dB fractional bandwidths (FBWs) of 37.4%, 43.5%, and 40.4% is designed, fabricated, and measured.

Keywords

References

  1. C.-I. G. Hsu, C. H. Lee, and Y. H. Hsieh, Tri-band bandpass filter with sharp passband skirts designed using tri-section sirs, IEEE Microw. Wireless Compon. Lett. 18 (2008), no. 1, 19-21. https://doi.org/10.1109/LMWC.2007.911976
  2. J. P. Hu et al., A new wideband triple-band filter using sir, J. Electromagn. Waves Applicat. 25 (2011), no. 16, 2287-2295. https://doi.org/10.1163/156939311798147042
  3. J. Li, S. S. Huang, and J. Z. Zhao, Design of a compact and high selectivity Tri-band bandpass filter using asymmetric steppedimpedance resonators (sirs), Prog. Electromagn. Res. Lett. 44 (2014), 81-86. https://doi.org/10.2528/PIERL13112502
  4. S. B. Zhang and L. Zhu, Fully canonical dual-band bandpass filter with $\lambda$/4 stepped impedance resonators, Electron. Lett. 50 (2014), no. 3, 192-194. https://doi.org/10.1049/el.2013.3101
  5. J. K. Xiao et al., Miniature quad-band bandpass filter with passband individually controllable using folded SIR, Electron. Lett. 50 (2014), no. 9, 679-680. https://doi.org/10.1049/el.2014.0605
  6. C. F. Chen, Design of a compact microstrip quint-band filter based on the tri-mode stub-loaded stepped-impedance resonators, IEEE Microw. Wireless Compon. Lett. 22 (2012), no. 7, 357-359. https://doi.org/10.1109/LMWC.2012.2202894
  7. H. W. Deng, Design of compact and high selectivity Tri-band wideband microstrip BPF, Microw. Opt. Technol. Lett. 55 (2013), no. 2, 258-261. https://doi.org/10.1002/mop.27334
  8. C. F. Chen et al., Design of compact microstrip sept-band bandpass filter with flexible passband allocation, IEEE Microw. Wireless Compon. Lett. 26 (2016), no. 5, 346-348. https://doi.org/10.1109/LMWC.2016.2549023
  9. H. W. Liu et al., Quad-band bandpass filter using quad-mode stub-loaded resonators, ETRI J. 36 (2014), no. 4, 690-693. https://doi.org/10.4218/etrij.14.0213.0468
  10. S. Yang et al., Compact and high selectivity tri-band bandpass filter using multipath-embedded resonators, Prog. Elecromagn. Res. Lett. 50 (2014), 35-40. https://doi.org/10.2528/PIERL14102108
  11. H. W. Wu et al., New triple-passband bandpass filter using multipath stub loaded resonators, IEEE Microw. Wireless Compon. Lett. 26 (2016), no. 3, 186-188. https://doi.org/10.1109/LMWC.2016.2526023
  12. Y. Xiong et al., Design of dual-band bandpass filter with closely spaced passbands and multiple transmission zeros, Prog. Electromagn. Res. Lett. 70 (2017), 45-51. https://doi.org/10.2528/PIERL17062801
  13. H. W. Liu et al., Compact and high selectivity Tri-band bandpass filter using multimode stepped-impedance resonator, IEEE Microw. Wireless Compon. Lett. 23 (2013), no. 10, 536-538. https://doi.org/10.1109/LMWC.2013.2251618
  14. S. Liu and J. Xu, Compact Tri-band bandpass filter using SISRLR, Electron. Lett. 52 (2016), no. 18, 1539-1541. https://doi.org/10.1049/el.2016.2171
  15. Y. Xiong et al., Dual-wideband bandpass filter with independently controllable center frequencies and wide stopband, Int. J. Microw. Wireless Technol. 10 (2018), no. 1, 93-99. https://doi.org/10.1017/S1759078717001179
  16. K. C. Lee et al., A Review of centrally loaded multimode microstrip resonators for bandpass filter design, Int. J. Electron. Commun. 69 (2015), no. 10, 1533-1540. https://doi.org/10.1016/j.aeue.2015.06.006
  17. J. Xu, W. Wu, and C. Miao, Compact microstrip Dual-/Tri-/Quad-band bandpass filter using open stubs loaded shorted stepped-impedance resonator, IEEE Trans. Microw. Theory Tech. 61 (2013), no. 9, 3187-3199. https://doi.org/10.1109/TMTT.2013.2273759
  18. J. Xu, W. Wu, and G. Wei, Compact multi-band bandpass filters with mixed electric and magnetic coupling using multiple-mode resonator, IEEE Trans. Microw. Theory Tech. 63 (2015), no. 12, 3909-3919. https://doi.org/10.1109/TMTT.2015.2488643

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  1. Dual-/tri-band bandpass filters with fully independent and controllable passband based on multipath-embedded resonators vol.12, pp.10, 2019, https://doi.org/10.1017/s175907872000135x