Skip to main content
SpringerLink
Log in

Miniaturized microstrip lowpass filter using cylindrical-shaped resonators for integrated applications

  • Published:
Analog Integrated Circuits and Signal Processing Aims and scope Submit manuscript

Abstract

A novel compact microstrip lowpass filter is presented in this paper. The structure uses stepped impedance and radial patches and it has the − 3 dB cut-off frequency at 4.39 GHz. The proposed lowpass filter has a wide rejection band from 6 to 30 GHz with rejection level more than − 20 dB. It has also other advantages such as: low insertion-loss < 0.1 dB and high return-loss more than 22 dB in 80% of the passband. The circuit size of the presented filter is about 90 mm2. Such important advantages make the proposed lowpass filter applicable to be integrated in many high frequency circuits such as power amplifiers, oscillators, couplers and power dividers. It also can block the unwanted video transmitter interference nearby 4 GHz such as implementing between transmitter and antenna. The lowpass filter has simulated and fabricated and a good agreement was seen between the simulation and fabrication results.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

  1. Wei, F., Chen, L., & Shi, X. W. (2012). Compact lowpass filter based on coupled-line hairpin unit. Electronic Letters, 48, 379–381.

    Article  Google Scholar 

  2. Wei, X. B., Wang, P., Liu, M. Q., & Shi, Y. (2011). Compact wide-stopband lowpass filter using stepped impedance hairpin resonator with radial Stubs. Electronic Letters, 47, 862–863.

    Article  Google Scholar 

  3. Hayati, M., Ekhteraei, M., & Shama, F. (2017). Compact lowpass filter with flat group delay using lattice-shaped resonator. Electronic Letters, 53(7), 475–476.

    Article  Google Scholar 

  4. Sheikhi, A., Alipour, A., & Abdipour, A. (2017). Design of compact wide stopband microstrip low-pass filter using T-shaped resonator. IEEE Microwave and Wireless Component Letters, 27(9), 111–113.

    Article  Google Scholar 

  5. Li, Q., Zhang, Y., & Fan, Y. (2015). Compact ultra-wide stopband low pass filter sing multimode resonators. Electronic Letters, 51(14), 1084–1085.

    Article  MathSciNet  Google Scholar 

  6. Zhang, B., Li, Sh, & Huang, J. (2015). Compact lowpass filter with wide stopband using coupled rhombic stubs’. IEEE Microwave and Wireless Component Letters, 51(3), 264–266.

    Google Scholar 

  7. Hayati, M., Shama, F., & Ekhteraei, M. (2016). Miniaturized microstrip suppressing cell with wide stopband. Aces Journal, 31(10), 1244–1249.

    Google Scholar 

  8. Hayati, M., Shama, F., Roshani, S., & Abdipour, A. (2014). Linearization design method in class-F power amplifier using artificial neural network. Journal of Computational Electronics, 13(4), 943–949.

    Article  Google Scholar 

  9. Hayati, M., & Lotfi, A. (2013). Design of a highly PAE class-F power amplifier using front coupled tapered compact microstrip resonant cell. AEU-International Journal of Electronics and Communications, 67(8), 681–685.

    Article  Google Scholar 

  10. Hayati, M., & Shama, F. (2017). A high-efficiency narrow-band class-F power amplifier integrated with a microstrip suppressing cell. Analog Integrated Circuits and Signal Processing, 90(2), 351–359.

    Article  Google Scholar 

  11. Hayati, M., & Shama, F. (2016). A harmonic-suppressed high-efficiency class-F power amplifier with elliptic-function low-pass filter. AEU-International Journal of Electronics and Communications, 70(10), 17–25.

    Article  Google Scholar 

  12. Chen, S., & Xue, Q. (2011). A class-F power amplifier with CMRC. IEEE Microwave and Wireless Components Letters, 21(1), 31–33.

    Article  Google Scholar 

  13. Li, Q., Zhang, Y., & Wu, Ch. (2017). High-selectivity and miniaturized filtering wilkinson power dividers integrated with multimode resonators. IEEE Transactions on Components, Packaging and Manufacturing Technology, PP(99), 1–8.

    Google Scholar 

  14. Hasan, A., Hannan, A., & Nadeem, A. E. (2016). Improved microstrip hairpin line bandpass filter using via ground holes and capacitive gap. Analog Integrated Circuits and Signal Processing, 86(2), 267–274.

    Article  Google Scholar 

  15. Hayati, M., & Shama, F. (2017). A compact lowpass filter with ultra wide stopband using stepped impedance resonator. Radioengineering, 26(1), 269–274.

    Article  Google Scholar 

  16. Hayati, M., Shama, F., & Abbasi, H. (2013). Compact microstrip lowpass filter with wide stopband and sharp roll-off using tapered resonator. International Journal of Electronics, 100(12), 1751–1759.

    Article  Google Scholar 

  17. Hayati, M., Abbasi, H., & Shama, F. (2014). Microstrip lowpass filter with ultra wide stopband and sharp roll-off. Arabian Journal for Science and Engineering, 39(8), 6249–6253.

    Article  Google Scholar 

  18. Hayati, M., & Shama, F. (2012). Compact microstrip low-pass filter with wide stopband using symmetrical U-shaped resonator. IEICE Electronics Express, 9(3), 127–132.

    Article  Google Scholar 

  19. Kolahi, A., & Shama, F. (2018). Compact microstrip low pass filter with flat group-delay using triangle-shaped resonators. AEU-International Journal of Electronics and Communications, 83, 433–438.

    Article  Google Scholar 

  20. Hiedari, B., & Shama, F. (2018). A harmonics suppressed microstrip cell for integrated applications. AEU-International Journal of Electronics and Communications, 83, 519–522.

    Article  Google Scholar 

  21. Tanushree, & Tiwary, A. K. (2017). Improved performance of radial elliptical low-pass filter for ISM band. Journal of The Institution of Engineers: Series B, 98(5), 477–483. https://doi.org/10.1007/s40031-017-0283-7.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran

    Mohammad Amin Imani & Mohsen Alirezapoori

  2. Department of Electrical Engineering, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran

    Farzin Shama

  3. Young Researchers and Elite Club, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran

    Milad Ekhteraei

Authors
  1. Mohammad Amin Imani
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Farzin Shama
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Mohsen Alirezapoori
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Milad Ekhteraei
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Mohammad Amin Imani.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Imani, M.A., Shama, F., Alirezapoori, M. et al. Miniaturized microstrip lowpass filter using cylindrical-shaped resonators for integrated applications. Analog Integr Circ Sig Process 95, 223–229 (2018). https://doi.org/10.1007/s10470-018-1176-7

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10470-018-1176-7

Keywords

Search

Navigation