High-Resolution Microwave Near-Field Surface Imaging Using Resonance Probes

Oleksandr Malyuskin, Vincent Fusco

    Research output: Contribution to journalArticle

    17 Citations (Scopus)

    Abstract

    A novel microwave high-resolution near-field imaging technique is proposed and experimentally evaluated in reflectometry imaging scenarios involving planar metal-dielectric structures. Two types of resonance near field probes-a small helix antenna and a loaded subwavelength slot aperture are studied in this paper. These probes enable very tight spatial field localization with the full width at half maximum around one tenth of a wavelength, λ, at λ/100-λ/10 standoff distance. Importantly, the proposed probes permit resonance electromagnetic coupling to dielectric or printed conductive patterns, which leads to the possibility of very high raw image resolution with imaged feature-to-background contrast greater than 10-dB amplitude and 50° phase. In addition, high-resolution characterization of target geometries based on the cross correlation image processing technique is proposed and assessed using experimental data. It is shown that printed elements features with subwavelength size ~λ/15 or smaller can be characterized with at least 10-dB resolution contrast.
    LanguageEnglish
    Pages189-200
    JournalIEEE Transactions on Instrumentation and Measurement
    Volume65
    Issue number1
    Early online date23 Sep 2015
    DOIs
    Publication statusPublished - Jan 2016

    Fingerprint

    resonance probes
    near fields
    Microwaves
    Imaging techniques
    microwaves
    high resolution
    Electromagnetic coupling
    electromagnetic coupling
    probes
    image resolution
    Image resolution
    Full width at half maximum
    slots
    imaging techniques
    helices
    cross correlation
    image processing
    Image processing
    antennas
    apertures

    Keywords

    • Probes
    • Helical antennas
    • Microwave imaging
    • Dielectrics
    • Microwave antennas
    • Spatial resolution

    Cite this

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    title = "High-Resolution Microwave Near-Field Surface Imaging Using Resonance Probes",
    abstract = "A novel microwave high-resolution near-field imaging technique is proposed and experimentally evaluated in reflectometry imaging scenarios involving planar metal-dielectric structures. Two types of resonance near field probes-a small helix antenna and a loaded subwavelength slot aperture are studied in this paper. These probes enable very tight spatial field localization with the full width at half maximum around one tenth of a wavelength, λ, at λ/100-λ/10 standoff distance. Importantly, the proposed probes permit resonance electromagnetic coupling to dielectric or printed conductive patterns, which leads to the possibility of very high raw image resolution with imaged feature-to-background contrast greater than 10-dB amplitude and 50° phase. In addition, high-resolution characterization of target geometries based on the cross correlation image processing technique is proposed and assessed using experimental data. It is shown that printed elements features with subwavelength size ~λ/15 or smaller can be characterized with at least 10-dB resolution contrast.",
    keywords = "Probes, Helical antennas, Microwave imaging, Dielectrics, Microwave antennas, Spatial resolution",
    author = "Oleksandr Malyuskin and Vincent Fusco",
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    High-Resolution Microwave Near-Field Surface Imaging Using Resonance Probes. / Malyuskin, Oleksandr; Fusco, Vincent.

    In: IEEE Transactions on Instrumentation and Measurement, Vol. 65, No. 1, 01.2016, p. 189-200.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - High-Resolution Microwave Near-Field Surface Imaging Using Resonance Probes

    AU - Malyuskin, Oleksandr

    AU - Fusco, Vincent

    PY - 2016/1

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    N2 - A novel microwave high-resolution near-field imaging technique is proposed and experimentally evaluated in reflectometry imaging scenarios involving planar metal-dielectric structures. Two types of resonance near field probes-a small helix antenna and a loaded subwavelength slot aperture are studied in this paper. These probes enable very tight spatial field localization with the full width at half maximum around one tenth of a wavelength, λ, at λ/100-λ/10 standoff distance. Importantly, the proposed probes permit resonance electromagnetic coupling to dielectric or printed conductive patterns, which leads to the possibility of very high raw image resolution with imaged feature-to-background contrast greater than 10-dB amplitude and 50° phase. In addition, high-resolution characterization of target geometries based on the cross correlation image processing technique is proposed and assessed using experimental data. It is shown that printed elements features with subwavelength size ~λ/15 or smaller can be characterized with at least 10-dB resolution contrast.

    AB - A novel microwave high-resolution near-field imaging technique is proposed and experimentally evaluated in reflectometry imaging scenarios involving planar metal-dielectric structures. Two types of resonance near field probes-a small helix antenna and a loaded subwavelength slot aperture are studied in this paper. These probes enable very tight spatial field localization with the full width at half maximum around one tenth of a wavelength, λ, at λ/100-λ/10 standoff distance. Importantly, the proposed probes permit resonance electromagnetic coupling to dielectric or printed conductive patterns, which leads to the possibility of very high raw image resolution with imaged feature-to-background contrast greater than 10-dB amplitude and 50° phase. In addition, high-resolution characterization of target geometries based on the cross correlation image processing technique is proposed and assessed using experimental data. It is shown that printed elements features with subwavelength size ~λ/15 or smaller can be characterized with at least 10-dB resolution contrast.

    KW - Probes

    KW - Helical antennas

    KW - Microwave imaging

    KW - Dielectrics

    KW - Microwave antennas

    KW - Spatial resolution

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    T2 - IEEE Transactions on Instrumentation and Measurement

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