1. Zhang, X. Y., J. X. Chen, and Q. Xue, "Dual-band bandpass filters using stub-loaded resonators," IEEE Microwave and Wireless Components Letters, Vol. 17, 583-585, 2007.
doi:10.1109/LMWC.2007.901768
2. Lai, X., C. H. Liang, H. Di, and B. Wu, "Design of tri-band filter based on stub loaded resonator and DGS resonator," IEEE Microwave and Wireless Components Letters, Vol. 20, 265-267, 2010.
doi:10.1109/LMWC.2010.2045584
3. Lan, S. W., M. H. Weng, and S. J. Chang, "A tri-band bandpass filter with wide stopband using symmetric stub-loaded resonators," IEEE Microwave and Wireless Components Letters, Vol. 25, 19-21, 2015.
doi:10.1109/LMWC.2014.2365739
4. Wei, F., Y. J. Guo, P. Y. Qin, and X. W. Shi, "Compact balanced dual- and tri-band bandpass filters based on stub loaded resonators," IEEE Microwave and Wireless Components Letters, Vol. 25, 76-78, 2015.
doi:10.1109/LMWC.2014.2370233
5. 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.
doi:10.2528/PIER11040201
6. Lee, C. H., C. G. Hsu, and H. K. Jhuang, "Design of a new tri-band microstrip BPF using combined quarter-wavelength SIRs," IEEE Microwave and Wireless Components Letters, Vol. 16, 594-596, 2006.
doi:10.1109/LMWC.2006.884902
7. Chen, F. C. and Q. X. Chu, "Design of compact tri-band bandpass filters using assembled resonators," IEEE Transactions on Microwave Theory and Techniques, Vol. 57, 165-171, 2009.
doi:10.1109/TMTT.2008.2008963
8. Lai, M. I. and S. K. Jeng, "Compact microstrip dual-band bandpass filters design using geneticalgorithm techniques," IEEE Transactions on Microwave Theory and Techniques, Vol. 54, 160-168, 2006.
doi:10.1109/TMTT.2005.860327
9. Mokhtar, M., J. Bornemann, K. Rambabu, and S. Amari, "Coupling matrix design of dual and triple passband filters," IEEE Transactions on Microwave Theory and Techniques, Vol. 54, 3940-3946, 2006.
doi:10.1109/TMTT.2006.884687
10. Luo, S., L. Zhu, and S. Sun, "Compact dual-mode triple-band bandpass filters using three pairs of degenerate modes in a ring resonator," IEEE Transactions on Microwave Theory and Techniques, Vol. 59, 1222-1229, 2011.
doi:10.1109/TMTT.2011.2123106
11. Chen, W. Y., M. H. Weng, and S. J. Chang, "A new tri-band bandpass filter based on stub-loaded step-impedance resonator," IEEE Microwave and Wireless Components Letters, Vol. 22, 179-181, 2012.
doi:10.1109/LMWC.2012.2187884
12. 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," Microwave and Optical Technology Letters, Vol. 53, 1573-1576, 2011.
doi:10.1002/mop.26037
13. Cao, L. and L. Yin, "Novel tri-band bandpass filter with high selectivity," Progress In Electromagnetics Research Letters, Vol. 51, 127-133, 2015.
doi:10.2528/PIERL14121302
14. Liu, B. and Y. Zhao, "Compact tri-band bandpass filter for WLAN and WiMAX using tri-section stepped-impedance resonators," Progress In Electromagnetics Research Letters, Vol. 45, 39-44, 2014.
doi:10.2528/PIERL14011807
15. Zhang, X. Y., L. Gao, Z. Y. Cai, and X. L. Zhao, "Novel tri-band bandpass filter using stub-loaded short-ended resonator," Progress In Electromagnetics Research Letters, Vol. 40, 81-92, 2013.
doi:10.2528/PIERL13040205
16. 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
17. Chu, Q. X. and X. M. Lin, "Advanced triple-band bandpass filter using tri-section SIR," Electronics Letters, Vol. 44, 295-296, 2008.
doi:10.1049/el:20083096
18. Matthaei, G. L., L. Young, and E. M. T. Jones, "Couple strip transmission line filter sections," Microwave Filters, Impedance-Matching Networks and Coupling Structures, 217-228, Artech House, Norwood, MA, 1980.
19. Hong, J. S. G. and M. J. Lancaster, Microstrip Filters for RF/Microwave Applications, Vol. 167, John Wiley & Sons, 2004.