Design of microwave lowpass filter based on log periodic zigzag DGS

Rong-Bin Chen 1 , Xiao-Ou Ou 2 , Jia-Lin Li 3 , and Baidenger Agyekum Twumasi 3 , 4
  • 1 Department of Electronic and Information Technology, Jiangmen Polytechnic, 529030, Jiangmen, China
  • 2 Jiangmen Branch, China Mobile Group Guangdong Co., Ltd., , 529000, Jiangmen, China
  • 3 School of Physics, University of Electronic Science and Technology of China, , 611731, Chengdu, China
  • 4 Electrical /Electronic Engineering Department, Ho Technical University, Ho, Ghana

Abstract

This contribution presents, for the first time, the design of microwave lowpass filter with ultrawide stopband and low insertion loss based on the log-periodic zig-zag defected ground structure (DGS); the design is specifically evolved from the principle of the log-periodic line antenna and the slotline based DGS. Based on the log-periodic property, studies show that ultra-wideband suppression can be realized by increasing the flare angle or the angle subtended by each element of the slotline DGS. The developed filter therefore shows low insertion loss of 0.7 dB within the passband, sharp transition between the passband and the stopband and ultra-wide suppression band from 2.61-26.5 GHz with a 20 dB suppression level. The DGS architecture is simple and easy to realize, and the design is thus useful in many microwave applications. The fabricated prototype filter validates the study, both from simulations and from measurements.

If the inline PDF is not rendering correctly, you can download the PDF file here.

  • [1] J.-L. Li and B.-G. Yu, “Numerical study and experimental validation of a four-way feeding network with 45 deg broadband phase shifts for antenna array applications”, Journal of Electrical Engineering, vol. 70, no. 5, pp. 400-405, 2019.

  • [2] L. Xia, J.-L. Li, Z. Ji, and S.-S. Gao, “An in-line coaxial-to-circular waveguide transition at X band”, Journal of Electrical Engineering, vol. 71, no. 1, pp. 55-59, 2020.

  • [3] C.-G. Sun, J.-L. Li, and B.-A. Twumasi, “Multi-way differential power divider with microstrip output interfaces”, Journal of Electrical Engineering, vol. 71, no. 4, pp. 274-280, 2020.

  • [4] J.-L. Li, J. X. Chen, Q. Xue, J.-P. Wang, W. Shao, and L.-J. Xue, “Compact microstrip lowpass filter based on defected ground structure and compensated microstrip line”, IEEE MTT-S International Microwave Symposium Digest, vol. 71, no. 4, pp. 472-14831486.

  • [5] M.-K. Mandal, P. Mondal, S. Sanyal, and A. Chakrabarty, “Low insertion-loss, sharp-rejection and compact microstrip low-pass filters”, IEEE Microwave and Wireless Component Letters, vol. 16, no. 11, pp. 600-602, 2006.

  • [6] B.-A Twumasi and J.-L. Li, “An equivalent circuit model of a rectangular bracket shaped DGS and its microwave filter applications”, Journal of Electrical Engineering, vol. 70, no. 1, pp. 32-38, 2019.

  • [7] R.-B. Chen and X.-O. Ou, “A hairpin DGS resonator for application to microstrip lowpass filters”, Journal of Electrical Engineering, vol. 71, no. 2, pp. 110-115, 2020.

  • [8] J. Gong, “A rectangular slot Yagi DGS microstrip filter with sharp rollo and wide suppression band”, Journal of Electrical Engineering, vol. 71, no. 3, pp. 217-221, 2020.

  • [9] Z.-L. Wen, Y.-Y. Han, X.-Y. Sun, and R. Tao, “Design of miniaturized low-pass filter with improved Koch fractal DGS”, Proceedings of IEEE International Symposium Electromagnetic Compatibility, pp. 1-4, 2017.

  • [10] J.-L. Li, S.-W. Qu, and Q. Xue, “Compact microstrip lowpass filter with sharp roll-o and wide stop-band”, Electronics Letters, vol. 45, no. 2, pp. 110-111, 2009.

  • [11] D.-E. Isbell, “Log periodic dipole arrays”, IRE Transactions on Antennas and Propagation, vol. 8, no. 3, pp. 260-267, 1960.

  • [12] N. Barbano, “Log periodic Yagi-Uda array”, IEEE Transactions on Antennas and Propagation, vol. 14, no. 2, pp. 235-238, 1966.

  • [13] D. Varon and R. Kieburtz, “Theoretical analysis of a log-periodic structure”, Proceedings of IEEE International Symposium on Antennas and Propagation, pp. 58-61, 1964.

  • [14] C.-C. Bantin and K.-G. Balmain, “Study of compressed log-periodic dipole antennas”, IEEE Transactions on Antennas and Propagation, vol. 18, no. 2, pp. 195-203, 1970.

  • [15] R. Lehmensiek and D.-I. De Villiers, “Optimization of log-periodic dipole array antennas for wideband omnidirectional radiation”, IEEE Transactions on Antennas and Propagation, vol. 63, no. 8, pp. 3714-3718, 2015.

  • [16] P. Zhang and M. Li, “A novel sharp roll-o microstrip lowpass filter with improved stopband and compact size using dual-plane structure”, Microwave and Optical Technology Letters, vol. 58, no. 5, pp. 1085-1088, 2016.

  • [17] A. Boutejdar, A.-A. Ibrahim, and R.-M. Shubair, “A novel high-performance DMS/DGS low-pass filter for radar applications”, Proceedings on IEEE International Symposium on Antennas Propagation & USNC/URSI National Radio Science Meeting, pp. 2259-60, 2017.

  • [18] S. Sen, T. Moyra, and D. Sarkar, “Modelling and validation of microwave LPF using modified rectangular split ring resonators (SRR) and defected structures”, AEU-International Journal of Electronics and Communications, vol. 88, pp. 1-10, 2018.

  • [19] Y. Han, Z. Liu, C. Zhang, C. Mei, Q. Chen, and S. Yuan, “A flexible microstrip low-pass filter design using asymmetric Pi-shaped DGS”, IEEE Access, vol. 7, pp. 49999-50006, 2019.

  • [20] T.-K. Rekha, P. Abdulla, P.-M. Jasmine, and A.-A. Anu, “Compact microstrip lowpass filter with high harmonics suppression using defected structures”, AEU-International Journal of Electronics and Communications, vol. 115, pp. 153032-1-10, 2020.

  • [21] C. Maximo-Gutierrez, J. Hinojosa, F.-L. Martinez-Viviente, and A. Alvarez-Melcon, “Design of high-performance microstrip and coplanar low-pass filters based on electromagnetic bandgap (EBG) structures”, AEU-International Journal of Electronics and Communications, vol. 123, pp. 153311-1-7, 2020.

OPEN ACCESS

Journal + Issues

Search