volume | PIER Journals

2017-03-24

A Compact Quarter-Mode SIW Bandpass Filter with an Extremely Wide Stopband

Wei Yang,

Dr. Wei Yang

Key Laboratory of Specialty Fiber Optics and Optical Access Network

Shanghai University

China

Homepage

Guo Hui Li,

Dr. Guo Hui Li

Key Laboratory of Specialty Fiber Optics and Optical Access Network

Shanghai University

China

Homepage

Yudan Wu,

Dr. Yudan Wu

Shanghai Radio Equipment Research Institute

China

Homepage

Ya-Na Yang,

Dr. Ya-Na Yang

Shanghai University

China

Homepage

Li Sun,

Dr. Li Sun

Shanghai University

China

Homepage

Xuexia Yang

Prof. Xuexia Yang

Shanghai University

China

Homepage

Progress In Electromagnetics Research Letters, Vol. 67, 13-18, 2017

doi:10.2528/PIERL17020706

Abstract

This paper presents a C-band wide stopband bandpass filter (BPF) using quarter mode substrate integrated waveguide (QMSIW) cavities. The BPF is simply constructed by combining S-shaped slot and L-shaped slot loaded quarter-mode substrate integrated waveguide. A special negative coupling scheme with symmetrical S-shaped slots on the top and bottom metal planes connected by metallic vias is developed. The proposed structure provides more design flexibility in arranging the pitch of vias owing to the extended slot length. The filter has fractional bandwidth of 25% at center frequency of 5.5 GHz with return loss better than 24 dB and insertion loss less than 1.1 dB. Moreover, its first spurious response occurs at 22.5 GHz (about four times the central frequency), exhibiting an extremely wide stopband performance. An experimental SIW filter was fabricated, and good agreement was achieved between the simulated and measured results.

Citation

Copy Export

Wei Yang, Guo Hui Li, Yudan Wu, Ya-Na Yang, Li Sun, and Xuexia Yang, "A Compact Quarter-Mode SIW Bandpass Filter with an Extremely Wide Stopband," Progress In Electromagnetics Research Letters, Vol. 67, 13-18, 2017.
doi:10.2528/PIERL17020706

References

1. Kim, C. H. and K. Chang, "Wide-stopband passband filter using asymmetric stepped-impedance resonators," IEEE Microw. Wireless Compon. Lett., Vol. 23, No. 2, 69-71, Feb. 2013.
doi:10.1109/LMWC.2012.2236885

2. Uchimura, H., T. Takenoshita, and M. Fujii, "Development of a laminated waveguide," IEEE Trans. Microw. Theory Tech., Vol. 46, No. 12, 2438-2443, Dec. 1998.
doi:10.1109/22.739232

3. Deslandes, D. and K. Wu, "Integration microstrip and rectangular wave-guide in planar form," IEEE Microw. Wireless Compon. Lett., Vol. 11, No. 2, 68-70, Feb. 2001.
doi:10.1109/7260.914305

4. Che, W., L. Geng, K. Deng, and Y. L. Chow, "Analysis and experiment of compact folded substrateintegrate waveguide," IEEE Trans. Microw. Theory Tech., Vol. 56, No. 1, 88-93, Jan. 2008.
doi:10.1109/TMTT.2007.911955

5. Zhang, Q.-L., B.-Z. Wang, D.-S. Zhao, and K. Wu, "A compact half-mode substrate integrated waveguide bandpass filter with wide out-of-band rejection," IEEE Microw. Wireless Compon. Lett., Vol. 26, No. 7, 501-503, Jul. 2016.
doi:10.1109/LMWC.2016.2574997

6. Yang, T., P. Chi, R. Xu, and W. Lin, "Folded substrate integrated waveguide based composite right/left handed transmission line and its application to partial H-plane filters," IEEE Trans. Microw. Theory Tech., Vol. 61, No. 2, 789-799, Feb. 2013.
doi:10.1109/TMTT.2012.2231431

7. Guo, Z., K.-S. Chin, W. Che, and C.-C. Chang, "Cross-coupled bandpass filters using QMSIW cavities and S-shaped slot coupling structures," Journal of Electromagnetic Waves and Applications, Vol. 27, No. 2, 160-167, Jan. 2013.
doi:10.1080/09205071.2013.741514

8. Zhu, F., W. Hong, J. Chen, and K. Wu, "Wide stopband substrate integrated waveguide filter using corner cavities," Electron. Lett., Vol. 49, No. 1, 50-52, Jan. 2013.
doi:10.1049/el.2012.3891

9. Lan, S.-W., M.-H. Weng, C.-Y. Huang, and S.-J. Chang, "Design of a compact ultra-wideband bandpass filter with an extremely broad stopband region," IEEE Microw. Wireless Compon. Lett., Vol. 26, No. 6, 392-394, Jun. 2016.
doi:10.1109/LMWC.2016.2558039

10. Zhang, X. Y., X. Dai, H.-L. Kao, B.-H. Wei, Z. Y. Cai, and Q. Xue, "Compact LTCC bandpass filter with wide stopband using discriminating coupling," IEEE Trans. Compon., Packag. Manuf. Technol., Vol. 4, No. 4, 656-663, Apr. 2014.
doi:10.1109/TCPMT.2013.2297522