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
Article

Abstract

The relationship of the coupling coefficient of quarter-wave resonators operating on the main resonance frequency f0 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 f0 = 2.4 GHz built on dielectric material with εr = 9.7 are also presented.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  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.
    http://www.ceramics.sp.ru.Google 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

Personalised recommendations