volume | PIER Journals

Abstract

A new microstrip ultra-wideband (UWB) bandpass filter (BPF) with triple-notched bands is presented in this paper. The circuit topology and its corresponding electrical parameters of the initial microstrip UWB BPF are desired by a variation of genetic algorithm (VGA). Then, triple-notched bands inside the UWB passband are implemented by coupling a square ring short stub loaded resonator (SRSSLR) to the main transmission line of the initial microstrip UWB BPF. The triple-notched bands can be easily generated and set at any desired frequencies by varying the designed parameters of SRSSLR. For verification, a microstrip UWB BPF with triple-notched bands respectively centered at frequencies of 4.3 GHz, 5.8 GHz, and 8.1 GHz is designed and fabricated. Simulated and experimental results are in good agreement.

1. FCC "Revision of part 15 of the commission's rules regarding ultra-wide-band transmission system,", 98-153, Tech. Rep., ET-Docket, 2002.

2. Zhu, L., S. Sun, and W. Menzel, "Ultra-wideband (UWB) bandpass filters using multiple-mode resonator," EEE Microw. Wireless Compon. Lett., Vol. 15, No. 11, 796-798, 2005.

3. Qiang, L., Y.-J. Zhao, Q. Sun, W. Zhao, and B. Liu, "A compact UWB HMSIW bandpass filter based on complementary split-ring resonators," Progress In Electromagnetics Research C, Vol. 11, 237-243, 2009.

4. Packiaraj, D., K. J. Vinoy, and A. T. Kalghatgi, "Analysis and design of two layered ultra wide band filter," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 8-9, 1235-1243, 2009.

5. Wang, H., L. Zhu, and W. Menzel, "Ultra-wideband bandpass filter with hybrid microstrip/CPW structure," IEEE Microw. Wireless Compon. Lett., Vol. 15, No. 12, 844-846, 2005.

6. Shobeyri, M. and M. H. Vadjed-Samiei, "Compact ultra-wideband bandpass filter with defected ground structure," Progress In Electromagnetics Research Letters, Vol. 4, 25-31, 2008.

7. Naghshvarian-Jahromi, M. and M. Tayarani, "Miniature planar UWB bandpass filters with circular slots in ground," Progress In Electromagnetics Research Letters, Vol. 3, 87-93, 2008.

8. Comez-Garcia, R. and J. I. Alonso, "Systematic method for the exact synthesis of ultra-wideband filtering responses using high-pass and low-pass sections," IEEE Trans. on Microw. Theory and Tech., Vol. 54, No. 10, 3751-3764, 2006.

9. Wong, S. W. and L. Zhu, "Implementation of compact UWB bandpass filter with a notch-band," IEEE Microw. Wireless Compon. Lett., Vol. 18, No. 1, 10-12, 2008.

10. Wei, F., L. Chen, X.-W. Shi, X. H. Wang, and Q. Huang, "Compact UWB bandpass filter with notched band," Progress In Electromagnetics Research C, Vol. 4, 121-128, 2008.

11. Wei, F., Q. Y. Wu, X. W. Shi, and L. Chen, "Compact UWB bandpass filter with dual notched bands based on SCRLH resonator," IEEE Microw. Wireless Compon. Lett., Vol. 21, No. 1, 28-30, 2011.

12. Wu, H.-W., M.-H. Weng, and C.-Y. Hung, "Ultra wideband bandpass filter with dual notch bands," Proc. Asia-Pacific Microwave Conf., 33-36, Yokohama, Japan, 2010.

13. Hsiao, P.-Y. and R.-M. Weng, "Compact tri-layer ultra-wideband bandpass filter with dual notch bands," Progress In Electromagnetics Research, Vol. 106, 49-60, 2010.

14. Hao, Z.-C., J.-S. Hong, S. K. Alotaibi, J. P. Parry, and D. P. Hand, "Ultra-wideband bandpass filter with multiple notch-bands on multilayer liquid crystal polymer substrate," IET Microw. Antennas Propag., Vol. 3, No. 5, 749-756, 2009.

15. Hao, Z.-C., J.-S. Hong, J. P. Parry, and D. P. Hand, "Ultra-wideband bandpass filter with multiple notch bands using nonuniform periodical slotted ground structure," IEEE Trans. on Microw. Theory and Tech., Vol. 57, No. 12, 3080-3088, 2009.

16. Luo, X., J.-G. Ma, K. S. Yeo, and E.-P. Li, "Compact ultra-wideband (UWB) bandpass filter with ultra-narrow dual- and quad-notched bands," IEEE Trans. on Microw. Theory and Tech., Vol. 59, No. 6, 1509-1519, 2011.

17. Nosrati, M. and M. Daneshmand, "Compact microstrip UWB double/single notch-band BPF based on wave's cancellation theory," IET Microw. Antennas Propag., Vol. 6, No. 8, 862-868, 2012.

18. Nosrati, M. and M. Daneshmand, "Developing single-layer ultra-wideband band-pass filter with multiple (triple and quadruple) notches," IET Microw. Antennas Propag., Vol. 7, No. 8, 612-620, 2013.

19. Dong, Y. L., C.-M. Sun, W.-Y. Fu, and W. Shao, "Ultra-wideband bandpass ¯lters with triple and quad frequency notched bands," Journal of Electromagnetic Waves and Applications, Vol. 26, No. 11-12, 1624-1630, 2012.

20. Hsu, M.-H. and J.-F. Huang, "Annealing algorithm applied in optimum design of 2.4 GHz and 5.2 GHz dual-wideband microstrip line filters," IEICE Trans. on Electronics, Vol. E88C, No. 1, 47-56, 2005.

21. Tsai, L.-C. and C.-W. Hsue, "Dual-band bandpass filters using equal-length coupled-serial- shunted lines and Z-transforms technique," IEEE Trans. on Microw. Theory and Tech., Vol. 52, No. 4, 1111-1117, 2004.

22. Nicholson, G.-L. and M.-J. Lancaster, "Coupling matrix synthesis of cross coupled microwave filters using a hybrid optimisation algorithm," IET Trans. on Microw. Antennas Propag.,, Vol. 3, No. 6, 1111-1117, 2009.

23. Zhao, Y.-X., F. Chen, H. Chen, N. Li, Q. Shen, and L. Zhang, "The microstructure design optimization of negative index metamaterials using genetic algorithm," Progress In Electromagnetics Research Letters, Vol. 22, 95-108, 2011.

24. Chen, J.-Z., N. Wang, Y. He, and C.-H. Liang, "Fourth-order tri-band bandpass filter using square ring loaded resonators," Electronics Letters, Vol. 47, No. 15, 858-859, 2011.

Dr. Jian Wang

Prof. Junding Zhao

Dr. Jia-Lin Li