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Progress In Electromagnetics Research
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COMPACT, BROAD-STOPBAND LOWPASS FILTERS USING SIRS-LOADED CIRCULAR HAIRPIN RESONATORS

By M. Yang, J. Xu, Q. Zhao, L. Peng, and G. Li

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Abstract:
A novel compact resonator for LPF is proposed in this paper. It is composed of a circular hairpin resonator and a pair of coupled parallel stepped impedance resonators (SIRs) inside. With the loaded SIRs, additional two transmission zeros can be introduced and adjusted easily to cancel the spurious responses for stopband extending, while do not change the filter size. Filters using one and two of the new cells were designed and measured. The two-cell LPF has an insertion loss less than 0.6 dB from DC to 1.6 GHz, including attenuation of double SMA transitions at both sides of the circuit which is about 0.3 dB, and a wide -10 dB stopband from 2.5 to 13 GHz (corresponding to 146% normalized 10 dB stopband), but has a size of only 0.129 λg × 0.073 λg.

Citation:
M. Yang, J. Xu, Q. Zhao, L. Peng, and G. Li, "Compact, Broad-Stopband Lowpass Filters Using Sirs-Loaded Circular Hairpin Resonators," Progress In Electromagnetics Research, Vol. 102, 95-106, 2010.
doi:10.2528/PIER09120901
http://www.jpier.org/PIER/pier.php?paper=09120901

References:
1. Hong, J. S. and M. J. Lancaster, Microstrip Filters for RF/Mcirowave Applications, Wiley, New York, 2001.
doi:10.1002/0471221619

2. Mandal, M. K., P. Mondal, S. Sanyal, and A. Chakrabarty, "Low insertion-loss, sharp-rejection and compact microstrip low-pass filters," IEEE Microwave and Wireless Components Lett., Vol. 16, No. 11, 600-602, 2006.
doi:10.1109/LMWC.2006.884777

3. Castillo, M. D., V. Ahumada, J. Martel, and F. Medina, "Design of compact low-pass elliptic filters using double-sided MIC technology," IEEE Trans. Micro. Theory Tech., Vol. 55, No. 1, 121-127, 2007.
doi:10.1109/TMTT.2006.888578

4. Weng, L. H., S. J. Shi, X. Q. Chen, Y. C. Guo, and X. W. Shi, "A novel CSRRs DGS as lowpass filter," Journal of Electromagnetic Waves and Applications, Vol. 22, No. 14-15, 1899-1906, 2008.
doi:10.1163/156939308787537874

5. Chen, H. and Y.-X. Zhang, "A novel and compact low-pass quasi-elliptic filter using hybrid microstrip/CPW structure," Journal of Electromagnetic Waves and Applications, Vol. 22, No. 17-18, 2347-2353, 2008.
doi:10.1163/156939308787543714

6. Chen, X. Q., L. H. Weng, and X. W. Shi, "Equivalent circuit analyzed of complementary split ring resonator DGS for low pass filter," Journal of Electromagnetic Waves and Applications, Vol. 22, No. 17-18, 2365-2372, 2008.
doi:10.1163/156939308787543868

7. Song, Q. Y., H. R. Cheng, X. H. Wang, L. Xu, X. Q. Chen, and X. W. Shi, "Novel wideband bandpass filer integrating HMSIW with DGS," Journal of Electromagnetic Waves and Applications, Vol. 23, 2031-2040, 2009.
doi:10.1163/156939309789932412

8. Chen, W.-N., "A novel approach for realizing 2.4/5.2 GHz dual-band BPFs using twin-spiral etched ground structure," Journal of Electromagnetic Waves and Applications, Vol. 23, 829-840, 2009.
doi:10.1163/156939309788355261

9. Chen, X.-Q., X.-Q., R. Li, S.-J. Shi, Q. Wang, L. Xu, and X.-W. Shi, "A novel low pass filter using elliptic shape defected ground structure," Progress In Electromagnetics Research B, Vol. 9, 117-126, 2008.
doi:10.2528/PIERB08071801

10. Yang, F. R., K. P. Ma, Y. X. Qian, and T. Itoh, "A uniplanar compact photonic-bandgap (UC-PBG) structure and its applications for microwave circuit," IEEE Trans. Micro. Theory Tech., Vol. 47, No. 8, 1509-1514, 1999.
doi:10.1109/22.780402

11. Chen, M., C.-Y. Jiang, W.-Q. Xu, and M.-H. Ho, "Design of high order suspended stripline bandpass filter with miniaturization," Progress In Electromagnetics Research Letters, Vol. 8, 9-17, 2009.
doi:10.2528/PIERL09031601

12. Shaban, H. F., H. A. Elmikaty, and A. A. Shaalan, "Study the effects of electromagnetic band-gap (EBG) substrate on two patch microstrip antenna," Progress In Electromagnetics Research B, Vol. 10, 55-74, 2008.
doi:10.2528/PIERB08081901

13. Karthikeyan, S. S. and R. S. Kshetrimayum, "Compact wideband bandpass filter using open slot split ring resonator and CMRC," Progress In Electromagnetics Research Letters, Vol. 10, 39-48, 2009.
doi:10.2528/PIERL09061602

14. Gu, J. and X. Sun, "Compact lowpass filter using spiral compact microstrip resonant cells," IEE Electron. Lett., Vol. 41, No. 19, 1065-1066, 2005.
doi:10.1049/el:20052569

15. Peng, Y. and W.-X. Zhang, "Microstrip band-reject filter based on inter-digital capacitance loaded loop resonators," Progress In Electromagnetics Research Letters, Vol. 8, 93-103, 2009.
doi:10.2528/PIERL09031501

16. Hejazi, Z. M., M. C. Scardelletti, F. W. van Keuls, A. A. Omar, and A. S. Al-Zayed, "EM full-wave analysis and testing of novel quasi-elliptic microstrip filters for ultra narrowband filter design," Progress In Electromagnetics Research, Vol. 85, 261-288, 2008.
doi:10.2528/PIER08082605

17. Zhang, F., J. Z. Gu, C. Y. Gu, L. N. Shi, C. F. Li, and X. W. Sun, "Lowpass filter with in-line beeline CMRC," IEE Electron. Lett., Vol. 42, No. 8, 472-474, 2006.
doi:10.1049/el:20064151

18. Deng, K., Q. Xue, and W. Che, "Improved compact microstrip resonance cell lowpass filter with wide stopband characteristics," IEE Electron. Lett., Vol. 43, No. 8, 463-464, 2007.
doi:10.1049/el:20070028

19. Li, J.-L., S.-W. Qu, and Q. Xue, "Compact microstrip lowpass filter with sharp roll-oll and wide stop-band," IEE Electron. Lett., Vol. 45, No. 2, 110-111, 2009.
doi:10.1049/el:20093246

20. Li, L., Z.-F. Li, and Q.-F. Wei, "Compact and selective lowpass filter with very wide stopband using tapered compact microstrip resonant cells," IEE Electron. Lett., Vol. 45, No. 5, 267-268, 2009.
doi:10.1049/el:20092120

21. Hsieh, L. H. and K. Chang, "Compact lowpass filter using stepped impedance hairpin resonator," IEE Electron. Lett., Vol. 37, No. 4, 899-900, 2001.
doi:10.1049/el:20010600

22. Hsieh, L. H. and K. Chang, "Compact elliptic-function low-pass filters using microstrip stepped-impedance hairpin resonators," IEEE Trans. Micro. Theory Tech., Vol. 51, No. 1, 193-199, 2003.
doi:10.1109/TMTT.2002.806901

23. He, Q. J. and C. J. Liu, "A novel low-pass filter with an embedded band-stop structure for improved stop-band characteristics," IEEE Trans. Micro. Theory Tech., Vol. 19, No. 10, 629-631, 2009.

24. Yang, M. H. and J. Xu, "Design of compact, broad-stopband lowpass filter using modified stepped impedance hairpin resonators," IEE Electron. Lett., Vol. 44, No. 20, 899-900, 2008.
doi:10.1049/el:20081875

25. Luo, S., L. Zhu, and S. Sun, "Stopband-expanded low-pass filters using microstrip coupled-line hairpin units," IEEE Microwave and Wireless Components Lett., Vol. 18, No. 8, 506-508, 2008.
doi:10.1109/LMWC.2008.2001004


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