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Design of compact bandpass filter for WiMAX and UWB application using asymmetric SIRs and DGS

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Abstract

This paper considers a novel compact tri-band microstrip bandpass filter, the design of which employs asymmetric SIRs and DGS for achieving the characteristics of low insertion loss, high selectivity, wider range of bandwidth, and low group delay for 2.5/3.4 GHz (WiMAX) and 4.14–5.32 GHz (UWB) bands. The novel filter design implies the intentional selection of impedance ratio R and the length of the microstrip of asymmetric SIRs; in addition, DGS is used to improve the coupling strength of the last band. The scattering parameters of the three passbands have the following values: insertion losses S 21 are–0.26/–0.07/–0.05 dB, and return losses S 11 are–11.29/–19.25/–22.64 dB, respectively. The response of the filter was simulated using Ansoft HFSS simulator.

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Authors and Affiliations

  1. North Eastern Regional Institute of Science and Technology, Nirjuli, India

    Tasher Ali Sheikh & Janmoni Borah

  2. National Institute of Technology, Arunachal Pradesh, India

    Sahadev Roy

Authors
  1. Tasher Ali Sheikh
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  2. Janmoni Borah
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  3. Sahadev Roy
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Corresponding authors

Correspondence to Tasher Ali Sheikh, Janmoni Borah or Sahadev Roy.

Additional information

Original Russian Text © T.A. Sheikh, J. Borah, S. Roy, 2016, published in Izv. Vyssh. Uchebn. Zaved., Radioelektron., 2016, Vol. 59, No. 6, pp. 47–54.

ORCID: 0000-0002-6014-4263

ORCID: 0000-0002-0051-0313

ORCID: 0000-0002-9952-049X

The authors would like to extend their senior heartiest obligation to the dept. of ECE and CSE, NIT Arunachal Pradesh for the continuous support that allowed us to complete our work.

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Sheikh, T.A., Borah, J. & Roy, S. Design of compact bandpass filter for WiMAX and UWB application using asymmetric SIRs and DGS. Radioelectron.Commun.Syst. 59, 269–273 (2016). https://doi.org/10.3103/S0735272716060066

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  • DOI: https://doi.org/10.3103/S0735272716060066

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