A Compact and High Selective Microstrip Dual-Band Bandpass Filter

  • Dwipjoy SarkarEmail author
  • Tamasi Moyra
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 713)


This paper presents a compact and novel dual-band bandpass filter (DBBPF) using a microstrip dual-mode resonator, folded stepped impedance resonator (SIR) and an etched ground structure (EGS). The first and second passbands are generated by the dual-mode and single-mode resonators. The proposed bandpass filter (BPF) produces passbands centered at 2.4 GHz and 3.5 GHz, respectively. The passband performance of the DBBPF is enhanced by etching a pattern in the ground plane which provides less than 1-dB insertion loss in both of the passbands with more than 20-dB isolation in the stopband. The BPF is analyzed using classical odd–even-mode technique. The simulated full-wave electromagnetic (EM) results obtained using IE3D are in well agreement with the theoretical results. The proposed DBBPF can be employed in WLAN and WiMAX applications.





This work is supported by National Institute of Technology Agartala.


  1. 1.
    Zhang, Y., Sun, M.: Dual-band microstrip bandpass filter using stepped-impedance resonators with new coupling schemes. IEEE Trans. Microwave Theory Tech. 54, 3779–3785 (2006)CrossRefGoogle Scholar
  2. 2.
    Hsu, C.-Y., Chen, C.-Y., Chuang, H.-R.: A miniaturized dual-band bandpass filter using embedded resonators. IEEE Microwave Wirel. Compon. Lett. 21, 658–660 (2011)CrossRefGoogle Scholar
  3. 3.
    Kuo, Y.-T., Chang, C.-Y.: Analytical design of two-mode dual-band filters using E-shaped resonators. IEEE Trans. Microwave Theory Tech. 60, 250–260 (2012)CrossRefGoogle Scholar
  4. 4.
    Sun, S.: A dual-band bandpass filter using a single dual-mode ring resonator. IEEE Microwave Wirel. Compon. Lett. 21, 298–300 (2011)CrossRefGoogle Scholar
  5. 5.
    Lerdwanittip, R., Namsang, A., Jantree, P.: Dual-band bandpass filter using stubs to controllable passband. Procedia Comput. Sci. 86, 11–14 (2016)CrossRefGoogle Scholar
  6. 6.
    Xu, J., Zhu, C.-M.: Compact dual-band bandpass filter using uniform-impedance resonators and dual-mode resonator. Microwave Opt. Technol. Lett. 58, 1537–1540 (2016)CrossRefGoogle Scholar
  7. 7.
    Xu, Z., Wei, B., Cao, B., Guo, X., Zhang, X., Heng, Y., Jiang, L., Zheng, T., Wang, J.: A compact dual-band bandpass superconducting filter using microstrip/CPW spiral resonators. IEEE Microwave Wirel. Compon. Lett. 23, 584–586 (2013)CrossRefGoogle Scholar
  8. 8.
    Xiao, M., Sun, G., Xu, F.: Compact dual-band bandpass filters based on a novel defected ground spiral resonator. Microwave Opt. Technol. Lett. 57, 1636–1640 (2015)CrossRefGoogle Scholar
  9. 9.
    Reja, A.H., Khader, A.A.-H., Ahmad, S.N., Salih, A.A.A.: Dual-band band-pass filters based on metallic via holes. Procedia Comput. Sci. 58, 748–754 (2015)CrossRefGoogle Scholar
  10. 10.
    Hong, J.-S.: Microstrip filters for RF/microwave applications. Wiley, Hoboken, NJ (2011)CrossRefGoogle Scholar

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© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Department of ECENational Institute of Technology AgartalaAgartalaIndia

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