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2010-01-04
Novel Miniaturized Bandpass Filters Using Spiral-Shaped Resonators and Window Feed Structures
By
Progress In Electromagnetics Research, Vol. 100, 235-243, 2010
Abstract
In this paper, we present a new class of miniaturized microstrip bandpass filters with low-insertion loss, sharp-rejection and narrow-band performance. The proposed filters are composed of two spiral-shaped resonators and rectangle window feed structures. Both back-to-back and interdigital combinations of the resonators are adopted to obtain the miniaturized filter size. Compared to the traditional square loop bandpass filter, the sizes are reduced by 82% and 80%. It is also found that there is a pair of transmission zeros located on each side of the passbands, resulting in high selectivity. To validate the proposed idea, two demonstration filters with back-to-back and interdigital spiral-shaped resonators are implemented. The measured results exhibit good agreement with the full-wave simulation results.
Citation
Gao-Le Dai Mingyao Xia , "Novel Miniaturized Bandpass Filters Using Spiral-Shaped Resonators and Window Feed Structures," Progress In Electromagnetics Research, Vol. 100, 235-243, 2010.
doi:10.2528/PIER09120401
http://www.jpier.org/PIER/pier.php?paper=09120401
References

1. Dai, G. L., X. Y. Zhang, C. H. Chan, Q. Xue, and M. Y. Xia, "An investigation of open- and short-ended resonators and their applications to bandpass filters," IEEE Trans. Microw. Theory and Tech., Vol. 57, No. 9, 2203-2210, Sep. 2009.
doi:10.1109/TMTT.2009.2027173

2. Mo, S.-G., Z.-Y. Yu, and L. Zhang, "Design of triple-mode bandpass filter using improved hexagonal loop resonator," Progress In Electromagnetics Research, Vol. 96, 117-125, 2009.
doi:10.2528/PIER09080304

3. Wang, R., L.-S Wu, and X.-L. Zhou, "Compact folded substrate integrated waveguide cavities and bandpass filter," Progress In Electromagnetics Research, Vol. 84, 135-147, 2008.
doi:10.2528/PIER08071501

4. Mo, S.-G., Z.-Y. Yu, and L. Zhang, "Compact dual-mode bandpass filters using hexagonal meander loop resonators," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 13, 1723-1732, 2009.
doi:10.1163/156939309789566941

5. Goaur, A., C. Karpuz, and M. Akpinar, "A reduced-size dual-mode bandpass filter with capacitively loaded open-loop arms," IEEE Microw. Wireless Compon. Lett., Vol. 13, No. 9, 385-387, Sep. 2003.
doi:10.1109/LMWC.2003.817136

6. Wang, J.-P., L. Wang, Y.-X. Guo, Y. X. Wang, and D.-G. Fang, "Miniaturized dual-mode bandpass filter with controllable harmonic response for dual-band application," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 11-12, 1525-1533, 2009.
doi:10.1163/156939309789476482

7. Wang, Y. X., B.-Z. Wang, and J. P. Wang, "A compact square loop dual-mode bandpass filter with wide stop-band," Progress In Electromagnetics Research, Vol. 77, 223-228, 2007.

8. Gorur, A., "A novel dual-mode bandpass filter with wide stopband using the properties of microstrip open-loop resonator," IEEE Microw. Wireless Compon. Lett., Vol. 12, No. 10, 386-388, Oct. 2002.
doi:10.1109/LMWC.2002.804560

9. Tan, B. T., J. J. Yu, S. T. Chew, M.-S. Leong, and B.-L. Ooi, "A miniaturized dual-mode ring bandpass filter with a new perturbation," EEE Trans. Microw. Theory and Tech., Vol. 53, No. 1, 343-348, Jan. 2005.
doi:10.1109/TMTT.2004.839928

10. Tu, W.-H. and K. Chang, "Miniaturized dual-mode bandpass filter with harmonic control," IEEE Microw. Wireless Compon. Lett., Vol. 15, No. 12, 838-840, Dec. 2005.
doi:10.1109/LMWC.2005.860019

11. Liu, H., T. Fu, Y. Yang, and X. Li, "Miniaturized dual-mode filter using fractral slot and snaky-shape spur-line," Journal of Electromagnetic Waves and Applications, Vol. 22, No. 13, 1775-1782, 2008.
doi:10.1163/156939308786375082

12. Shum, K. M., T. T. Mo, Q. Xue, and C. H. Chan, "A compact bandpass filter with two tuning transmission zeros using a CMRC resonator," IEEE Trans. Microw. Theory Tech., Vol. 53, No. 3, 895-900, Mar. 2005.
doi:10.1109/TMTT.2004.842492

13. Kuo, J.-T. and C.-Y. Tsai, "Periodic stepped-impedance ring resonator (PSIRR) bandpass filter with a ministurized area and desirable upper stopband characteristics," IEEE Trans. Microw. Theory Tech., Vol. 54, No. 3, 1107-1112, Mar. 2006.
doi:10.1109/TMTT.2005.864121

14. Zhang, X. Y., J.-X. Chen, and Q. Xue, "Compact bandpass filter using open-loop resonators with capacitive loading," Microwave and Optical Technology Letters, Vol. 49, No. 1, 83-84, Jan. 2007.
doi:10.1002/mop.22035

15. AlHawari, A. R. H., A. Ismail, M. F. A. Rasid, R. S. A. R. Abdullah, B. K. Esfeh, and H. Adam, "Compact microstrip bandpass filter with sharp passband shirts using square spiral resonators and embedded-resonators," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 5-6, 675-683, 2009.
doi:10.1163/156939309788019895

16. Hong, J.-S. and M. J. Lancaster, "Bandpass characteristics of new dual-mode microstrip square loop resonators," Electronics Letters, Vol. 31, No. 11, 891-892, May 1995.
doi:10.1049/el:19950591

17. Pozar, D. M., Microwave Engineering, 3rd edition, 307-310, Wiley, New York, 2005.

18. Ma, K. X., J.-G. Ma, K. S. Yeo, and M. A. Do, "A compact size coupling contronllable filter with separate electric and magnetic coupling paths," IEEE Trans. Microw. Theory Tech., Vol. 54, No. 3, 1113-1119, Mar. 2006.
doi:10.1109/TMTT.2005.864118