1. Ma, D., Z. Y. Xiao, L. Xiang, X. Wu, C. Huang, and X. Kou, "Compact dual-band bandpass filter using folded SIR with two stubs for WLAN," Progress In Electromagnetics Research, Vol. 117, 357-364, 2011.
2. Wei, F., L. Chen, and X.-W. Shi, "Compact dual-mode dual-band bandpass filter with wide stopband," Journal of Electromagnetic Waves and Applications, Vol. 26, No. 11-12, 1441-1447, 2012.
doi:10.1080/09205071.2012.701575
3. Lai, X., C.-H. Liang, H. Di, and B. Wu, "Design of tri-band filter based on stub loaded resonator and DGS resonator," IEEE Microw. Wireless Compon. Lett., Vol. 20, No. 5, 265-267, 2010.
doi:10.1109/LMWC.2010.2045584
4. Chen, W. Y., S. J. Chang, M. H.Weng, Y. H. Su, and H. Kuan, "Simple method to design a tri-band bandpass filter using asymmetric SIRs for GSM, WiMAX and WLAN applications," Microw. Opt. Technol. Lett., Vol. 53, No. 7, 1573-1576, 2011.
doi:10.1002/mop.26037
5. Chen, C.-H., C.-S. Shih, T.-S. Horng, and S.-M. Wu, "Very miniature dual-band and dual-mode bandpass filter designs on an integrated passive device chip," Progress In Electromagnetics Research, Vol. 119, 461-476, 2011.
doi:10.2528/PIER11080105
6. Lee, C.-H., C.-I. G. Hsu, H.-H. Chen, and Y.-S. Lin, "Balanced single- and dual-band BPFS using ring resonators," Progress In Electromagnetics Research, Vol. 116, 333-346, 2011.
7. Chen, W.-Y., M.-H. Weng, S.-J. Chang, H. Kuan, and Y.-H. Su, "A new tri-band bandpass filter for GSM, WiMAX and ultra-wideband responses by using asymmetric stepped impedance resonators," Progress In Electromagnetics Research, Vol. 124, 365-381, 2012.
doi:10.2528/PIER11122010
8. Chaudhary, G., Y. Jeong, K. Kim, and D. Ahn, "Design of dual-band bandpass filters with controllable bandwidths using new mapping function," Progress In Electromagnetics Research,, Vol. 124, 17-34, 2012.
doi:10.2528/PIER11111407
9. Kuo, J.-T. and S.-W. Lai, "New dual-band bandpass filter with wide upper rejection band," Progress In Electromagnetics Research, Vol. 123, 371-384, 2012.
doi:10.2528/PIER11112304
10. Chen, F.-C. and J. M. Qiu, "Dual-band bandpass filter with controllable characteristics using stub-loaded resonators," Progress In Electromagnetics Research Letters, Vol. 28, 45-51, 2012.
doi:10.2528/PIERL11100904
11. Zhou, X.-J., Y.-J. Zhao, Y. Fu, and Y.-Y. Liu, "Compact dual-mode tri-band microstrip BPF with three sets of resonators," Progress In Electromagnetics Research Letters, Vol. 33, 47-54, 2012.
12. Ren, L.-Y., "Quad-band bandpass filter based on dual-plane microstrip/DGS slot structure," Electron. Lett., Vol. 46, No. 10, 691-692, 2010.
doi:10.1049/el.2010.0618
13. Cheng, C. M. and C. F. Yang, "Develop quad-band (1.57/2.45/3.5/5.2 GHz) bandpass filters on the ceramic substrate," IEEE Microw. Wireless Compon. Lett., Vol. 20, No. 5, 268-270, 2010.
doi:10.1109/LMWC.2010.2045585
14. Wu, H.-W. and R.-Y. Yang, "A new quad-band bandpass filter using asymmetric stepped impedance resonators," IEEE Microw. Wireless Compon. Lett., Vol. 21, No. 4, 203-205, 2011.
doi:10.1109/LMWC.2011.2106153
15. Yang, R.-Y., C.-Y. Hung, and J.-S. Lin, "Design and fabrication of a quad-band bandpass filter using multi-layered SIR structure," Progress In Electromagnetics Research, Vol. 114, 457-468, 2011.
16. Liu, J. C., J. W. Wang, B. H. Zeng, and D. C. Chang, "CPW-fed dualmode double-square-ring resonators for quad-band filters," IEEE Microw. Wireless Compon. Lett., Vol. 20, No. 3, 142-144, 2010.
doi:10.1109/LMWC.2010.2040211
17. Wu, J. Y. and W. H. Tu, "Design of quad-band bandpass filter with multiple transmission zeros," Electron. Lett., Vol. 47, No. 8, 502-503, 2011.
doi:10.1049/el.2011.0052