Radioelectronics and Communications Systems

, Volume 58, Issue 6, pp 284–289 | Cite as

Coupling coefficient of quarter-wave resonators as a function of parameters of comb stripline filters

  • A. V. Zakharov
  • M. Ye. Ilchenko
  • L. S. Pinchuk


The relationship of the coupling coefficient of quarter-wave resonators operating on the main resonance frequency f 0 as a function of different parameters of comb filters made of sections of symmetric striplines has been analyzed. It has been found out that the coupling coefficient increases with the rise of relative dielectric permittivity of striplines, their thickness and the resonance frequency. The measured characteristics of the stripline 4-resonator comb filter with central frequency f 0 = 2.4 GHz built on dielectric material with ε r = 9.7 are also presented.


Coupling Coefficient Central Conductor Relative Dielectric Permittivity Comb Filter Conducting Strip 
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  1. 1.
    G. L. Matthaei, E. M. T. Jones, L. Young, Microwave Filters, Impedance-Matching Networks and Coupling Structures (Artech House, 1980).Google Scholar
  2. 2.
    J. T. Bolljahn, G. L. Matthaei, “A study of the phase and filter properties of arrays of parallel conductors between ground planes,” Proc. IRE 50, No. 3, 299 (1962), DOI: 10.1109/JRPROC.1962.288322.Google Scholar
  3. 3.
    J.-S. Hong, Microstrip Filters for RF/Microwave Application, 2nd ed. (Wiley, N.Y., 2011), 640 p.Google Scholar
  4. 4.
    A. L. Feldshtein (ed.), Handbook on Elements of the Microstrip Devices (Svyaz’, Moscow, 1979) [in Russian].Google Scholar
  5. 5.
    L. K. Yeung, K.-L. Wu, Y. E. Wang, “Low-temperature cofired ceramic LC filters for RF applications,” IEEE Microwave Magazine 9, No. 5, 118 (Oct. 2008), DOI: 10.1109/MMM.2008.927634.CrossRefGoogle Scholar
  6. 6.
    T. Ishizaki, M. Fujita, H. Kagata, T. Uwano, Hideyuki Miyake, “A very small dielectric planar filter for portable telephones,” IEEE Trans. Microwave Theory Tech. 42, No. 11, 2017 (Nov. 1994), DOI: 10.1109/22.330112.CrossRefGoogle Scholar
  7. 7. Scholar
  8. 8.
    A. V. Zakharov, M. E. Il’chenko, “Thin bandpass filters containing sections of symmetric strip transmission line,” J. Commun. Technol. Electronics 58, No. 7, 728 (2013), DOI: 10.1134/S1064226913060144.CrossRefGoogle Scholar

Copyright information

© Allerton Press, Inc. 2015

Authors and Affiliations

  • A. V. Zakharov
    • 1
  • M. Ye. Ilchenko
    • 1
  • L. S. Pinchuk
    • 1
  1. 1.National Technical University of Ukraine “Kyiv Polytechnic Institute”KyivUkraine

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