volume | PIER Journals

Abstract

A design of compact planar SIW filter with notch band characteristics is proposed. Double split square complementary split ring resonators are used to realize the ultra-wide band (UWB) characteristics. Proposed UWB filter contributes a passband from 2.9 GHz to 10.3 GHz with minimum insertion loss 0.7 dB at 3.7 GHz and maximum of 1.84 dB at 7 GHz. By employing complementary split ring resonator in the ground plane, a narrow band characteristic is obtained to reject the undesired wireless local area network (WLAN) signals. The notch band frequency ranges from 5 GHz to 5.7 GHz with insertion loss of 14 dB at center frequency. The 3 dB fractional bandwidth in the notch band is 12.9%. The variation of group delay less than 0.5 ns in the passband range. Overall size of the proposed filter is 0.35λ_g × 1.06λ_g. Because of these salient features, the proposed filter can be used for space applications.

1. Bandyopadhyay, Anjan, Pankaj Sarkar, and Rowdra Ghatak, "A bandwidth reconfigurable bandpass filter for ultra-wideband and wideband applications," IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 69, No. 6, 2747-2751, 2022. Google Scholar

2. Zhu, He and Qing-Xin Chu, "Ultra-wideband bandpass filter with a notch-band using stub-loaded ring resonator," IEEE Microwave and Wireless Components Letters, Vol. 23, No. 7, 341-343, 2013.
doi:10.1109/LMWC.2013.2262928 Google Scholar

3. Yan, T., D. Lu, X.-H. Tang, and J. Xiang, "High-selectivity UWB bandpass filter with a notched band using stub-loaded multi-mode resonator," AEU-International Journal of Electronics and Communications, Vol. 70, No. 12, 1617-1621, 2016. Google Scholar

4. Xie, Jiacheng, Deshan Tang, Yiyang Shu, and Xun Luo, "Compact UWB BPF with broad stopband based on loaded-stub and C-shape SIDGS resonators," IEEE Microwave and Wireless Components Letters, Vol. 32, No. 5, 383-386, 2021.
doi:10.1109/LMWC.2021.3136561 Google Scholar

5. Dong, Yuan Dan, Tao Yang, and Tatsuo Itoh, "Substrate integrated waveguide loaded by complementary split-ring resonators and its applications to miniaturized waveguide filters," IEEE Transactions on Microwave Theory and Techniques, Vol. 57, No. 9, 2211-2223, 2009.
doi:10.1109/TMTT.2009.2027156 Google Scholar

6. Che, Wenquan, Chao Li, Kuan Deng, and Lisheng Yang, "A novel bandpass filter based on complementary split rings resonators and substrate integrated waveguide," Microwave and Optical Technology Letters, Vol. 50, No. 3, 699-701, 2008.
doi:10.1002/mop.23182 Google Scholar

7. Ghatak, Rowdra, Pankaj Sarkar, R. K. Mishra, and D. R. Poddar, "A compact UWB bandpass filter with embedded SIR as band notch structure," IEEE Microwave and Wireless Components Letters, Vol. 21, No. 5, 261-263, 2011.
doi:10.1109/LMWC.2011.2128302 Google Scholar

8. Wei, F., L. Chen, X.-W. Shi, and C.-J. Gao, "UWB bandpass filter with one tunable notch-band based on DGS," Journal of Electromagnetic Waves and Applications, Vol. 26, 673-680, 2012.
doi:10.1080/09205071.2012.710788 Google Scholar

9. Li, Q., Z.-J. Li, C.-H. Liang, and B. Wu, "UWB bandpass filter with notched band using DSRR," Electronics Letters, Vol. 46, No. 10, 692-693, 2010.
doi:10.1049/el.2010.0827 Google Scholar

10. Li, Qun and Tao Yang, "Compact UWB half-mode SIW bandpass filter with fully reconfigurable single and dual notched bands," IEEE Transactions on Microwave Theory and Techniques, Vol. 69, No. 1, 65-74, 2020.
doi:10.1109/TMTT.2020.3033830 Google Scholar

11. Sarkar, D., T. Moyra, and L. Murmu, "An ultra-wideband (UWB) bandpass filter with complementary split ring resonator for coupling improvement," AEU-International Journal of Electronics and Communications, Vol. 71, 89-95, 2017. Google Scholar

12. Pendry, J. B., A. J. Holden, D. J. Robbins, and W. J. Stewart, "Magnetism from conductors and enhanced nonlinear phenomena," IEEE Transactions on Microwave Theory and Techniques, Vol. 47, No. 11, 2075-2084, 1999.
doi:10.1109/22.798002 Google Scholar

13. Falcone, F., T. Lopetegi, J. D. Baena, R. Marqués, F. Martı́n, and M. Sorolla, "Effective negative-ε stopband microstrip lines based on complementary split ring resonators," IEEE Microwave and Wireless Components Letters, Vol. 14, No. 6, 280-282, 2004.
doi:10.1109/LMWC.2004.828029 Google Scholar

14. Ali, Abid and Zhirun Hu, "Metamaterial resonator based wave propagation notch for ultrawideband filter applications," IEEE Antennas and Wireless Propagation Letters, Vol. 7, 210-212, 2008.
doi:10.1109/LAWP.2008.920964 Google Scholar

Mr. Senathipathi Udhayanan

Prof. Krishnan Shambavi