Compact Dual-Band Bandpass Filter Based on Quarter Wavelength Stepped Impedance Resonators
This paper presents a compact dual-band bandpass filter that involves using the quarter wavelength stepped impedance resonators (SIRs) for achieving simultaneously compact circuit size and good dual-band performance. The filter is designed at 2.4 / 3.5 GHz and constructed by two pairs of quarter wavelength SIRs and source-load lines. By properly tuning the impedance ratio, length ratio and radius of via hole of the SIRs, dual-passbands performance can be easily determined. To improve the passband selectivity, the use of source-load lines is to increase coupling energy between the resonators. The filter is showing simple configuration, effective design method and small circuit size. The measured results are in good agreement with the simulation results.
[1] J. S. Hong and M. J. Lancaster, Microstrip Filters for RF/Microwave Application, 2nd ed. New York: Wiley, 2011.
[2] H. W. Wu, Y. F. Chen and Y. W. Chen, “Multi-layered dual-band bandpass filter using stub-loaded stepped-impedance and uniform-impedance resonators,” IEEE Microw. Wireless Compon. Lett., vol. 22, no. 3, pp. 114–116, Mar. 2012.
[3] F. C. Chen and Q. X. Chu, “Novel multi stub loaded resonator and its application to high-order dual-band filters,” IEEE Trans. Microw. Theory Tech., vol. 58, no. 6, pp. 1551–1556, Jun. 2010.
[4] C. H. Tseng and H. Y. Shao, “A new dual-band microstrip bandpass filter using net-type resonators,” IEEE Microw. Wireless Compon. Lett., vol. 20, no. 4, pp. 196–198, Apr. 2010.
[5] W. S. Chang and C. Y. Chang, “Analytical design of microstrip short circuit terminated stepped-impedance resonator dual-band filter,” IEEE Trans. Microw. Theory Tech., vol. 59, no. 7, pp. 1730–1739, Jul. 2011.
[6] X. Y. Zhang, C. H. Chan, Q. Xue and B. J. Hu, “Dual-Band Bandpass Filter With Controllable Bandwidths Using Two Coupling Paths,” IEEE Microw. Wireless Compon. Lett, vol. 20, no. 11, pp. 616-618, Nov. 2010.
[7] C. W. Tang and P. H. Wu, “Design of a Planar Dual-Band Bandpass Filter,” IEEE Microw. Wireless Compon. Lett, vol. 21, no. 7, pp. 362-364, July. 2011.
[8] P. H. Deng and J. H. Jheng, “A switched reconfigurable high-isolation dual-band bandpass filter,” IEEE Microw. Wireless Compon. Lett., vol. 21, no. 2, pp. 71–73, Feb. 2011.
[9] M. Makimoto, and S. Yamashita, “Bandpass filters using parallel coupled stripline stepped impedance resonators,” IEEE Trans. Microw. Theory Tech., vol. 28, pp. 1413-1417, Dec. 1980.
[10] H. W. Deng, Y. J. Zhao, Y. Fu, X. J. Zhou, and Y. Y. Liu, “Compact And High Selectivity Dual-mode Dual-band Microstrip BPF With Qwr And SLR” Microw And Optical Technology Lett., vol. 000, no. 000, pp. 2702-2705, Dec. 2012.
[11] V. Barbuddhye and A. Kakade, “Dual-band Bandpass Filter Based On λ/4-Resonators For Wi-Fi Application,” Microw And Optical Technology Lett., vol. 57, no. 12, pp. 2758-2761, Dec. 2015.
[12] L. Lin, P. P. Xu, J. L. Liu, B. Wu, T. Su and C. C. Liang, “Dual- Band Bandpass Filters Using a Novel Quad-Mode Stub-Loaded Ring Resonator,” Progress In Electromagnetics Research, vol.55, pp. 31-38, Aug. 2015.
[13] IE3D Simulator, Zeland Software, Inc. 2002.
[1] J. S. Hong and M. J. Lancaster, Microstrip Filters for RF/Microwave Application, 2nd ed. New York: Wiley, 2011.
[2] H. W. Wu, Y. F. Chen and Y. W. Chen, “Multi-layered dual-band bandpass filter using stub-loaded stepped-impedance and uniform-impedance resonators,” IEEE Microw. Wireless Compon. Lett., vol. 22, no. 3, pp. 114–116, Mar. 2012.
[3] F. C. Chen and Q. X. Chu, “Novel multi stub loaded resonator and its application to high-order dual-band filters,” IEEE Trans. Microw. Theory Tech., vol. 58, no. 6, pp. 1551–1556, Jun. 2010.
[4] C. H. Tseng and H. Y. Shao, “A new dual-band microstrip bandpass filter using net-type resonators,” IEEE Microw. Wireless Compon. Lett., vol. 20, no. 4, pp. 196–198, Apr. 2010.
[5] W. S. Chang and C. Y. Chang, “Analytical design of microstrip short circuit terminated stepped-impedance resonator dual-band filter,” IEEE Trans. Microw. Theory Tech., vol. 59, no. 7, pp. 1730–1739, Jul. 2011.
[6] X. Y. Zhang, C. H. Chan, Q. Xue and B. J. Hu, “Dual-Band Bandpass Filter With Controllable Bandwidths Using Two Coupling Paths,” IEEE Microw. Wireless Compon. Lett, vol. 20, no. 11, pp. 616-618, Nov. 2010.
[7] C. W. Tang and P. H. Wu, “Design of a Planar Dual-Band Bandpass Filter,” IEEE Microw. Wireless Compon. Lett, vol. 21, no. 7, pp. 362-364, July. 2011.
[8] P. H. Deng and J. H. Jheng, “A switched reconfigurable high-isolation dual-band bandpass filter,” IEEE Microw. Wireless Compon. Lett., vol. 21, no. 2, pp. 71–73, Feb. 2011.
[9] M. Makimoto, and S. Yamashita, “Bandpass filters using parallel coupled stripline stepped impedance resonators,” IEEE Trans. Microw. Theory Tech., vol. 28, pp. 1413-1417, Dec. 1980.
[10] H. W. Deng, Y. J. Zhao, Y. Fu, X. J. Zhou, and Y. Y. Liu, “Compact And High Selectivity Dual-mode Dual-band Microstrip BPF With Qwr And SLR” Microw And Optical Technology Lett., vol. 000, no. 000, pp. 2702-2705, Dec. 2012.
[11] V. Barbuddhye and A. Kakade, “Dual-band Bandpass Filter Based On λ/4-Resonators For Wi-Fi Application,” Microw And Optical Technology Lett., vol. 57, no. 12, pp. 2758-2761, Dec. 2015.
[12] L. Lin, P. P. Xu, J. L. Liu, B. Wu, T. Su and C. C. Liang, “Dual- Band Bandpass Filters Using a Novel Quad-Mode Stub-Loaded Ring Resonator,” Progress In Electromagnetics Research, vol.55, pp. 31-38, Aug. 2015.
[13] IE3D Simulator, Zeland Software, Inc. 2002.
@article{"International Journal of Electrical, Electronic and Communication Sciences:72685", author = "Yu-Fu Chen and Zih-Jyun Dai and Chen-Te Chiu and Shiue-Chen Chiou and Yung-Wei Chen and Yu-Ming Lin and Kuan-Yu Chen and Hung-Wei Wu and Hsin-Ying Lee and Yan-Kuin Su and Shoou-Jinn Chang", title = "Compact Dual-Band Bandpass Filter Based on Quarter Wavelength Stepped Impedance Resonators", abstract = "This paper presents a compact dual-band bandpass filter that involves using the quarter wavelength stepped impedance resonators (SIRs) for achieving simultaneously compact circuit size and good dual-band performance. The filter is designed at 2.4 / 3.5 GHz and constructed by two pairs of quarter wavelength SIRs and source-load lines. By properly tuning the impedance ratio, length ratio and radius of via hole of the SIRs, dual-passbands performance can be easily determined. To improve the passband selectivity, the use of source-load lines is to increase coupling energy between the resonators. The filter is showing simple configuration, effective design method and small circuit size. The measured results are in good agreement with the simulation results.
", keywords = "Dual-band, bandpass filter, stepped impedance resonators, SIR.", volume = "10", number = "4", pages = "517-4", }
