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Expanding the rejection band of planar bandpass filters

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Abstract

Combined stripline and microstrip filters combining a bandpass filter with stepped-impedance resonators and one or two low-pass filters are considered. Special features of the frequency characteristics of these two kinds of filters, which form the basis of this combination, are revealed. It is confirmed experimentally that, in combined planar filters, wide rejection bands exceeding a decade are provided.

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Additional information

Original Russian Text © A.V. Zakharov, 2012, published in Radiotekhnika i Elektronika, 2012, Vol. 57, No. 1, pp. 102–108.

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Zakharov, A.V. Expanding the rejection band of planar bandpass filters. J. Commun. Technol. Electron. 57, 95–100 (2012). https://doi.org/10.1134/S1064226911090105

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Keywords

  • Resonance Frequency
  • Bandpass Filter
  • Characteristic Impedance
  • Line Section
  • Combine Filter