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Double-Layered T-Shape Loaded Hairpin Resonator for High Performance Characteristic Dual-Band BPF Design

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Abstract

A simple high performance compact dual-band bandpass filter is developed in this paper based on multilayered T-shape loaded hairpin resonator (T-SLHR). The filter circuit is constructed using two substrates. On the first ground plane substrate, two T-SLHRs are analyzed and electrically coupled through a space gap S to accomplish the desired dual passbands. To acquire the filtering response, an input/output grounded hairpin-stub is patterned on a second ungrounded-substrate and broadside coupled to the T-SLHRs. To validate the proposed concept, a dual-band BPF is realized for a multi-wireless network system working at 2.4 GHz and 3.5 GHz center frequencies. Indeed, the T-SLHR is analyzed based on odd-even theory to generate the specified frequencies. Furthermore, a block-diagram to explain the coupling mechanism of the expected filter behavior is suggested. Moreover, the simulated filter is manufactured and its measurement and simulation results are compared and discussed. The produced filter has quite small area less than 126 mm2, high skirt roll-off selectivity and good isolation rejection band.

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AVAILABILITY OF DATA AND MATERIALS

The datasets generated during and/or analysed during the current study are not publicly available due to [this work is part of my MSc study which still I am working on] but are available from the corresponding author on reasonable request.

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Funding

This work was supported by ongoing institutional funding. No additional grants to carry out or direct this particular research were obtained.

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Authors and Affiliations

  1. University of Technology - Iraq, Baghdad, Iraq

    Zainab A. Mohammed & Raaed T. Hammed

Authors
  1. Zainab A. Mohammed
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  2. Raaed T. Hammed
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Contributions

All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by [1Zainab A. Mohammed], [2Raaed T. Hammed]. The first draft of the manuscript was written by [2Raaed T. Hammed] and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Raaed T. Hammed.

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The authors declare that they have no conflicts of interest.

Additional information

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii. Radioelektronika, No. 1, pp. 18-26, January, 2023 https://doi.org/10.20535/S0021347023020012 .

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Mohammed, Z.A., Hammed, R.T. Double-Layered T-Shape Loaded Hairpin Resonator for High Performance Characteristic Dual-Band BPF Design. Radioelectron.Commun.Syst. 66, 15–22 (2023). https://doi.org/10.3103/S0735272723020012

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