2013-03-19
Miniaturized UWB Bandpass Filter with Dual Notch Bands and Wide Upper Stopband
By
Progress In Electromagnetics Research Letters, Vol. 38, 161-170, 2013
Abstract
In this paper, a miniature ultrawideband (UWB) bandpass filter with dual notch bands and wide upper stopband is presented. The ultrawide passband characteristic is achieved using a microstrip to slot line transition, and a wide upper stop band is realized using an elliptical lowpass filter. The dual band notches at 5.46 GHz and 8.04 GHz are obtained by incorporating defected microstrip structure in the input and output section. A prototype of the proposed UWB bandpass filter is fabricated and measured. The equivalent circuit of the proposed filter is also presented. A good agreement between the measured, EM simulated and circuit simulated responses is obtained.
Citation
Pankaj Sarkar, Manimala Pal, Rowdra Ghatak, and Dipak Poddar, "Miniaturized UWB Bandpass Filter with Dual Notch Bands and Wide Upper Stopband," Progress In Electromagnetics Research Letters, Vol. 38, 161-170, 2013.
doi:10.2528/PIERL13012811
References

1. Gupta, K. C., R. Garg, and I. J. Bahl, Microstrip Lines and Slotlines, Artech House, Norwood, MA, 1979.

2. Sun, S. and L. Zhu, "Multimode resonator based band pass filters," IEEE Microwave Magazine,, 88-98, Apr. 2009.
doi:10.1109/MMM.2008.931673        Google Scholar

3. Hao, Z.-C. and J.-S. Hong, "Ultrawideband filter technologies," IEEE Microwave Magazine, 56-68, Jun. 2010.
doi:10.1109/MMM.2010.936494        Google Scholar

4. Chen, H. and Y.-X. Zhang, "A novel and compact UWB bandpass filter using microstrip fork-form resonators," Progress In Electromagnetics Research, Vol. 77, 273-280, 2007.
doi:10.2528/PIER07082302        Google Scholar

5. Zhu, L., S. Sun, and W. Menzel, "Ultra-wideband (UWB) bandpass filters using multiple-mode resonator," IEEE Microwave and Wireless Components Letters, Vol. 15, No. 11, 796-798, Nov. 2005.        Google Scholar

6. Wang, H., L. Zhu, and W. Menzel, "Ultra-wideband bandpass filter with hybrid microstrip/CPW structure," IEEE Microwave and Wireless Components Letters, Vol. 15, No. 12, 844-846, Dec. 2005.
doi:10.1109/LMWC.2005.860016        Google Scholar

7. Razalli, M. S., A. Ismail, M. A. Mahdi, and M. N. Hamidon, "Novel compact microstrip ultra-wideband filter utilizing short-circuited stubs with less vias," Progress In Electromagnetics Research, Vol. 88, 91-104, 2008.
doi:10.2528/PIER08102303        Google Scholar

8. Zhang, Z. X. and F. Xiao, "An UWB bandpass filter based on a novel type of multi-mode resonator," IEEE Microwave and Wireless Components Letters, Vol. 22, No. 10, 506-508, Oct. 2012.
doi:10.1109/LMWC.2012.2218229        Google Scholar

9. Deng, H.-W., Y.-J. Zhao, X.-S. Zhang, L. Zhang, and S.-P. Gao, "Compact quintuple-mode UWB band pass filter with good out-of-band rejection," Progress In Electromagnetics Research Letters,, Vol. 14, 111-117, 2010.
doi:10.2528/PIERL10030912        Google Scholar

10. Yang, G.-M., R. Jin, C. Vittoria, V. G. Harrisand, and N. X. Sun, "Small ultra wideband (UWB) band pass filter with notch band," EEE Microwave and Wireless Components Letters, Vol. 18, No. 3, 176-178, Mar. 2008.
doi:10.1109/LMWC.2008.916781        Google Scholar

11. Weng, M.-H., C.-T. Liauh, H.-W. Wu, and S. R. Vargas, "An ultra-wideband bandpass filter with an embedded open-circuited stub structure to improve in-band performance," IEEE Microwave and Wireless Components Letters, Vol. 19, No. 3, 146-148, Mar. 2009.
doi:10.1109/LMWC.2009.2013733        Google Scholar

12. Ghazali, A. N. and S. Pal, "Analysis of a small UWB filter with notch and improved stopband," Progress In Electromagnetics Research Letters, Vol. 34, 147-156, 2012.        Google Scholar

13. Kim, C. H. and K. Chang, "Ultra-wideband (UWB) ring resonator bandpass filter with a notched band," IEEE Microwave and Wireless Components Letters, Vol. 21, No. 4, 206-208, Apr. 2011.
doi:10.1109/LMWC.2011.2109942        Google Scholar

14. Song, K. J. and Q. Xue, "Compact ultra-wideband (UWB) bandpass filters with multiple notched bands," IEEE Microwave and Wireless Components Letters, Vol. 20, No. 8, 447-449, Aug. 2010.
doi:10.1109/LMWC.2010.2050303        Google Scholar

15. Huang, J.-Q., Q.-X. Chu, and C.-Y. Liu, "Compact UWB filter based on surface-coupled structure with dual notched bands," Progress In Electromagnetics Research, Vol. 106, 311-319, 2010.
doi:10.2528/PIER10062203        Google Scholar

16. Sarkar, P., R. Ghatak, M. Pal, and D. R. Poddar, "Compact UWB bandpass filter with dual notch bands using open circuited stubs," IEEE Microwave and Wireless Components Letters, Vol. 22, No. 9, 453-455, Sept. 2012.
doi:10.1109/LMWC.2012.2210395        Google Scholar