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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2018-11-01
Design and Analysis of Compact Single and Dual Notch Ultra Wideband Bandpass Filter
By
Madhu Gandamalla,

    Dr. Madhu Gandamalla

    Department of Electronics and Communication Engineering

    Visvesvaraya National Institute of Technology (VNIT)

    India

    Homepage

Dushyant Marathe,

    Mr. Dushyant Marathe

    Department of Electronics and Communication Engineering

    Visvesvaraya National Institute of Technology (VNIT)

    India

    Homepage

Kishore Kulat

    Dr. Kishore Kulat

    Department of Electronics and Communication Engineering

    Visvesvaraya National Institute of Technology (VNIT)

    India

    Homepage

Progress In Electromagnetics Research M, Vol. 75, 91-102, 2018
doi:10.2528/PIERM18080705 | Google Scholar

Abstract
This paper presents single and dual notch ultra-wideband bandpass filters (UWB BPFs) to mitigate interference with coexisting wireless communication systems in ultra-wideband (UWB). The single and dual notch UWB BPF is developed by using signal interaction concept loaded with stub loaded resonator. The stub loaded resonator creates notches in the passband to avoid the interference with coexisting wireless communication systems. The notch frequency can be placed at the points of interest within passband by selecting a proper length of stub loaded resonator. Transmission zeros are introduced to enhance the selectivity of stopband. It presents UWB BPF with single notch at the frequency of 6.5 GHz and dual notch at the frequencies of 6.3 GHz and 8.0 GHz. The circuit size of proposed filters is 6 mm x 6 mm and 6 mm x 6 mm. The proposed filters exhibit good performance in terms of compact size, good fractional bandwidth and sharp selectivity. All the filters are simulated and fabricated on a Rogers R03010 substrate with relative permittivity of 10.2 and thickness of 1.28 mm. There is good agreement between simulated and measured results.
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Citation
Madhu Gandamalla, Dushyant Marathe, and Kishore Kulat, "Design and Analysis of Compact Single and Dual Notch Ultra Wideband Bandpass Filter," Progress In Electromagnetics Research M, Vol. 75, 91-102, 2018.
doi:10.2528/PIERM18080705
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