Vol. 89

Front:[PDF file] Back:[PDF file]
Latest Volume
All Volumes
All Issues
2020-01-23

Linear Phase SIW Filter with Good Selectivity

By Weimin Hou and Qingshan Tang
Progress In Electromagnetics Research Letters, Vol. 89, 105-111, 2020
doi:10.2528/PIERL19120904

Abstract

This letter presents an approach to design a linear phase substrate integrated waveguide (SIW) bandpass filter with good selectivity. The topology of the proposed filter is implemented based on cross and bypass coupling schemes, which simultaneously introduce a linear phase response and good selectivity, respectively. According to the proposed topology, a multilayer SIW filter is presented to realize the two kinds of couplings and preserve a compact size. Then, the defected ground structure is adopted to further improve the out-of-band rejection. To demonstrate the proposed design method, one double-layered SIW bandpass filter is fabricated and measured. Measured results show that the proposed filter has a linear phase response and good out-of-band rejection, as well as a good agreement between simulated and measured results.

Citation


Weimin Hou and Qingshan Tang, "Linear Phase SIW Filter with Good Selectivity," Progress In Electromagnetics Research Letters, Vol. 89, 105-111, 2020.
doi:10.2528/PIERL19120904
http://jpier.org/PIERL/pier.php?paper=19120904

References


    1. Hsiao, C. Y. and T. L. Wu, "A novel dual-function circuit combining high-speed differential equalizer and common-mode filter with an additional zero," IEEE Microw. Wireless Compon. Lett., Vol. 24, No. 9, 617-619, Sep. 2016.
    doi:10.1109/LMWC.2014.2328896

    2. Chen, X.-P., W. Hong, T.-J. Cui, J.-X. Chen, and K. Wu, "Substrate integrated waveguide (SIW) linear phase filter," IEEE Microw. Wireless Compon. Lett., Vol. 15, No. 11, 787-779, Nov. 2005.
    doi:10.1109/LMWC.2005.859021

    3. Szydlowski, L. and M. Mrozowski, "Self-equalized waveguide filter with frequency-dependent (resonant) couplings," IEEE Microw. Wireless Compon. Lett., Vol. 24, No. 11, 769-771, Nov. 2014.
    doi:10.1109/LMWC.2014.2303171

    4. Szydlowski, L. and M. Mrozowski, "A linear phase filter in quadruplet topology with frequencydependent couplings," IEEE Microw. Wireless Compon. Lett., Vol. 24, No. 1, 32-34, Jan. 2014.
    doi:10.1109/LMWC.2013.2288178

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

    6. Lee, B., T. H. Lee, K. Lee, M. S. Uhm, and J. Lee, "K-band substrate-integrated waveguide resonator filter with suppressed higher-order mode," IEEE Microw. Wireless Compon. Lett., Vol. 25, No. 6, 367-369, Jun. 2015.
    doi:10.1109/LMWC.2015.2421313

    7. Guan, X. H., Y. Yuan, H. W. Liu, and W. Huang, "A three-pole substrate integrated waveguide bandpass filter using new coupling scheme," Radioengineering, Vol. 24, No. 3, 703-707, Sep. 2015.
    doi:10.13164/re.2015.0703

    8. Chu, P., et al., "Wide stopband bandpass filter implemented with spur stepped impedance resonator and substrate integrated coaxial line technology," IEEE Microw. Wireless Compon. Lett., Vol. 24, No. 4, 218-220, Apr. 2014.
    doi:10.1109/LMWC.2013.2295219

    9. Moro, R., S. Moscato, M. Bozzi, and L. Perregrini, "Substrate integrated folded waveguide filter with out-of-band rejection controlled by resonant-mode suppression," IEEE Microw. Wireless Compon. Lett., Vol. 25, No. 4, 214-216, Apr. 2015.
    doi:10.1109/LMWC.2015.2400927

    10. Jia, D.-H., Q.-Y. Feng, Q.-Y. Xiang, and K. Wu, "Multilayer substrate integrated waveguide (SIW) filters with higher-order mode suppression," IEEE Microw. Wireless Compon. Lett., Vol. 26, No. 9, 678-680, Sep. 2016.
    doi:10.1109/LMWC.2016.2597222

    11. Jia, D.-H., Q.-Y. Feng, and Q.-Y. Xiang, "Two- and four-pole multilayer SIW filter with high selectivity and higher-order mode suppression," Frequenz, Vol. 73, No. 5–6, 209-217, Feb. 2019.
    doi:10.1515/freq-2018-0214

    12. Hong, J. S. and M. J. Lancaster, Microstrip Filter for RF/Microwave Applications, Wiley, New York, 2001.
    doi:10.1002/0471221619

    13. Amari, S. and U. Rosenberg, "Characteristics of cross (bypass) coupling through higher/lower order modes and their applications in elliptic filter design," IEEE Trans. Microw. Theory Tech., Vol. 53, No. 10, 3135-3141, Oct. 2005.
    doi:10.1109/TMTT.2005.855359