Design of a Compact Balanced Tri-band Bandpass Filter Using Simple Planar Resonator with Wide Stop-band and High Selectivity

Document Type : Research Article

Authors

1 Electrical Engineering Department, Engineering Faculty, Islamic Azad University, Arak

2 Electrical Engineering Department of Arak University of Technology, Arak, Iran

3 Department of Electrical Engineering, Arak Branch, Islamic Azad University, Arak, Iran

Abstract

The most balanced multiband band-pass-filters have some remarkable properties while provide a trade-off between design goals. Additionally, few of them have provided a structure capable of satisfactory harmonic suppression. Stepped Impedance Resonators (SIR) are famous and widely utilized to relocate or cancel high order harmonics, and they provide advantages when used in designing bandpass filters. They have shown benefits in achieving Common Mode (CM) suppression along with compact size and wide stopband. To design a tri-band balanced bandpass filter, a Ring-SIR structure is used as the main building block of the filter. The SIR is first analyzed and the design formulas are presented and the design graphs are extracted based on that. Using the graphs, it is possible to design a tri-band filter and have the ability to control the center frequencies of the pass-bands. To achieve high pass-band selectivity, coupled feeding configuration is chosen external quality factor is analyzed, and respective graphs are presented. Results show more than 20dB isol,ation with pass-bands centering at 1.7, 2.55, and 4.48 GHz, insertion losses of 1.44, 1.77, and 2.11 dB respectively. The corresponding FBWs are 3.95%, 4.10% and 1.56% respectively. Great out-of-band performance is achieved with a wide stop-band stretching from 4.8 to 8.76 GHz. The CM rejection for three pass-bands are better than 12.9, 18.9 and 43.5dB, respectively.

Keywords

Main Subjects

References

[1] R. Levy and S. Cohn, “A history of microwave filter research, design, and development,” IEEE Trans. Microw. Theory Tech, vol. 32, no. 9, pp. 1055-1067, 1984.
[2] J. S. Hong and M. J. Lancaster, Microstrip filters for rf/microwave applications, NY: Wiley, 2001.
[3] Y. Kuo and C. Chang, “Analytical design of two-mode dual-band filters using E-shaped resonators,” IEEE Transactions on Microwave Theory and Techniques, vol. 60, no. 2, pp. 250-260, 2012.
[4] Z. Chunxia, G. Yongxin and Y. Shaolin, “A compact dual-band filter based on dual-mode resonators,” in Proceedings of Asia-Pacific Microwave Conference, 2011.
[5] Y. Liu, Y. Zhao, Y. Zhou and Z. Niu, “Integrated dual-band BPF and single-band BSF for tri-band filter design,” Journal of Electromagnetic Waves and Applications, vol. 25, no. 17, pp. 2420-2428, 2011.
[6] S. Fu, B. Wu, J. Chen, S. Sun and C. Liang, “Novel second-order dual-mode dual-band filters using capacitance loaded square loop resonator,” IEEE Transactions on Microwave Theory and Techniques, vol. 60, no. 3, pp. 477-483, 2011.
[7] B. Ren, H. Liu, Z. Ma, M. Ohira, P. Wen, X. Wang and a. X. Guan, “Compact dual-band differential bandpass filter using quadruple-mode stepped-impedance square ring loaded resonators,” IEEE Access, vol. 6, p. 21850–21858, 2018.
[8] Y. Chang, C. Kao, M. Weng and R. Yang, “Design of the compact dual-band bandpass filter with high isolation for GPS/WLAN applications,” IEEE Microwave and Wireless Components Letters, vol. 19, no. 12, pp. 780-782, 2009.
[9] M. Doan, W. Che and W. Feng, “Tri-band bandpass filter using square ring short stub loaded resonators,” IET Electronics Letters, vol. 48, no. 2, pp. 106-107, 2012.
[10] W. Chen, M. Weng and S. Chang, “A new tri-band bandpass filter based on stub-loaded step-impedance resonator,” IEEE Microwave and Wireless Components Letters, vol. 22, no. 4, pp. 179-181, 2012.
[11] A. Basit, M. I. Khattak, A. R. Sebak, A. B. Qazi and A. A. Telba, “Design of a Compact Microstrip Triple Independently Controlled Pass Bands Filter for GSM, GPS and WiFi Applications,” IEEE Access, vol. 8, pp. 77156-77163, 2020.
[12] R. Gómez-García and R. Loeches-Sánchez, "Multi-Stub-Loaded Differential-Mode Planar Multiband Bandpass Filters," IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 65, no. 3, pp. 271-275, 2018.
[13] F. Wei, 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, no. 2, pp. 76-78, 2015.
[14] H. Liu, Z. Wang, S. Hu, H.-X. Xu and B. Ren, “Design of Tri-Band Balanced Filter with Wideband Common-Mode Suppression and Upper Stopband Using Square Ring Loaded Resonator,” IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 67, no. 10, pp. 1760-1764, 2019.
[15] S.-X. Zhang, L.-L. Qiu and Q.-X. Chu, “Multiband Balanced Filters With Controllable Bandwidths Based on Slotline Coupling Feed,” IEEE Microwave and Wireless Components Letters, vol. 27, no. 11, pp. 974-976, 2017.
[16] H. Liu, Y. Song, B. Ren, P. Wen, X. Guan and H. Xu, “Balanced Tri-Band Bandpass Filter Design Using Octo-Section Stepped-Impedance Ring Resonator with Open Stubs,”IEEE Microwave and Wireless Components Letters, vol. 27, pp. 912-914, 2017.
[17] F. Wei, C.-Y. Zhang, H.-J. Yue and X.-W. Shi, “Balanced Quad-Band Bandpass Filter With Controllable Frequencies and Bandwidths,” IEEE Access, vol. 7, pp. 140470 - 140477, 2019.
[18] J. Zhang, Q. Liu, H. Liu, D. Zhang and D. Zhou, “Compact balanced tri-band superconducting band-pass filter using double square ring loaded resonators,” Int J RF Microw Comput Aided Eng, vol. 31, no. 3, 2021.
[19] Y. Al-Yasir, N. Ojaroudi Parchin, A. Abdulkhaleq, M. Bakr and Abd-Alhameed, “A Survey of Differential-Fed Microstrip Bandpass Filters: Recent Techniques and Challenges,” Sensors, vol. 20, no. 2356, 2020.
[20] V. CRNOJEVIC´-BENGIN, Advances in Multi-Band Microstrip Filters, Cambridge: Cambridge University Press, 2015.
[21] F. Martín, L. Zhu, J. Hong and F. Medina, Balanced Microwave Filters, Hoboken, NJ: John Wiley & Sons, Inc., 2018.
[22] D. Packiaraj, M. Ramesh and A. T. Kalghatgi, “Design of a tri-section folded SIR filter,” IEEE Microw. Wireless Compon. Lett., vol. 16, no. 5, pp. 317-319, 2006.
[23] Y. Yang, Z. Wang, L. Xu and Y. Liu, “A balanced tri-band bandpass filter with high selectivity and controllable bandwidths,” Int J RF Microw Comput Aided Eng, vol. 29, no. 12, 2019.
[24] C. Wang, X. Xi, Y. Zhao and X. Shi, “A miniaturized tri-band bandpass microstrip filter using multiple resonators with sharp skirts,” International Journal of Microwave and Wireless Technologies, vol. 13, no. 5, pp. 430-434, 2021.
[25] I. Jadidi, M. A. Honarvar and F. Khajeh-Khalil, “Compact Tri-Band Microstrip Filter Using Three Types of Resonators for Bluetooth, WiMAX , and WLAN Applications,” Progress In Electromagnetics Research C, vol. 91, pp. 241-252, 2019.
[26] A. Bandyopadhyay, P. Sarkar, T. Mondal and R. Ghatak, “A Dual Function Reconfigurable Bandpass Filter for Wideband and Tri-Band Operations,” IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 68, no. 6, pp. 1892-1896, 2021.
[27] H. Liu, Z. Wang, S. Hu, H. -X. Xu and B. Ren, “Design of Tri-Band Balanced Filter With Wideband Common-Mode Suppression and Upper Stopband Using Square Ring Loaded Resonator,” IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 67, no. 10, pp. 1760-1764, 2020.
[28] M. Ho and K. Tang, “Miniaturized SIW Cavity Tri-Band Filter Design,” IEEE Microwave and Wireless Components Letters, vol. 30, no. 6, pp. 589-592, 2020.
[29] L. Xu, H. Yue, F. Wei and X. Shi, “A balanced dual-band bandpass filter with a wide stopband and controllable differential-mode frequencies and fractional bandwidths,” International Journal of RF and Microwave Computer-Aided Engineering, 2020.
[30] M. Zhao, L. Xu, X. Cheng, W. Chen, W. Wu and F. Wei, “Design of a balanced dual-band BPF with high selectivity,” Microw Opt Technol Lett, vol. 62, p. 3536– 3541, 2020.
[31] F. Bagci, A. Fernández-Prieto, A. Lujambio, J. Martel, J. Bernal and F. Medina, “Compact Balanced Dual-Band Bandpass Filter Based on Modified Coupled-Embedded Resonators,” IEEE Microwave and Wireless Components Letters, vol. 27, no. 1, pp. 31-33, 2017.
[32] G. Dong, W. Wang, Y. Wu, W. Li, Y. Liu and M. M. Tentzeris, “Dual-Band Balanced Bandpass Filter Using Slotlines Loaded Patch Resonators With Independently Controllable Bandwidths,” IEEE Microwave and Wireless Components Letters, vol. 30, no. 7, pp. 653-656, 2020.
[33] G. Karimi, M. Amirian, A. Lalbakhsh and M. Ranjbar, “A new microstrip coupling system for realization of a differential dual-band bandpass filter,” AEU - International Journal of Electronics and Communications, vol. 99, pp. 186-192, 2019.
[34] Q. Zhang, C. Chen, W. Chen, D. J. and H. Zhang, “Novel balanced single/dual-band bandpass filters based on a circular patch resonator,” IET Microw. Antennas Propag, vol. 15, pp. 206-220, 2021.
AUT Journal of Modeling and Simulation
Volume 53, Issue 2
December 2021
Pages 275-286

Files

Share

How to cite

Statistics