Monostatic reflectivity and transmittance of radar absorbing materials at 650 GHz

A. Tamminen, Anne Lönnqvist, J. Mallat, A. V. Räisänen

    Research output: Contribution to journalArticleScientificpeer-review

    11 Citations (Scopus)

    Abstract

    Transmittance and monostatic reflectivity of different radar absorbing materials at 650 GHz are presented. The reflectivity was measured in plane-wave conditions in a radar cross-section (RCS) range with vertical polarization. The lowest reflectivity level (-70 dB) was achieved with commercial absorbers TK THz RAM and Firam-500 with oblique incidence angles. Floor carpets were also studied, and the reflectivity level of those was found to be sufficiently low (from -50 to -60 dB) for use in antenna test ranges. Results agree with earlier studies and indicate the applicability of the RCS method in reflectivity measurements also at 650 GHz.
    Original languageEnglish
    Pages (from-to)632 - 637
    Number of pages6
    JournalIEEE Transactions on Microwave Theory and Techniques
    Volume56
    Issue number3
    DOIs
    Publication statusPublished - 2008
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Radar absorbing materials
    radar
    transmittance
    reflectance
    radar cross sections
    Radar cross section
    test ranges
    Random access storage
    absorbers
    plane waves
    antennas
    incidence
    Polarization
    Antennas
    polarization

    Keywords

    • Antenna test range
    • Monostatic reflectivity
    • Radar absorbing materials (RAMs)
    • Radar cross section (RCS)

    Cite this

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    title = "Monostatic reflectivity and transmittance of radar absorbing materials at 650 GHz",
    abstract = "Transmittance and monostatic reflectivity of different radar absorbing materials at 650 GHz are presented. The reflectivity was measured in plane-wave conditions in a radar cross-section (RCS) range with vertical polarization. The lowest reflectivity level (-70 dB) was achieved with commercial absorbers TK THz RAM and Firam-500 with oblique incidence angles. Floor carpets were also studied, and the reflectivity level of those was found to be sufficiently low (from -50 to -60 dB) for use in antenna test ranges. Results agree with earlier studies and indicate the applicability of the RCS method in reflectivity measurements also at 650 GHz.",
    keywords = "Antenna test range, Monostatic reflectivity, Radar absorbing materials (RAMs), Radar cross section (RCS)",
    author = "A. Tamminen and Anne L{\"o}nnqvist and J. Mallat and R{\"a}is{\"a}nen, {A. V.}",
    year = "2008",
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    language = "English",
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    Monostatic reflectivity and transmittance of radar absorbing materials at 650 GHz. / Tamminen, A.; Lönnqvist, Anne; Mallat, J.; Räisänen, A. V.

    In: IEEE Transactions on Microwave Theory and Techniques, Vol. 56, No. 3, 2008, p. 632 - 637.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Monostatic reflectivity and transmittance of radar absorbing materials at 650 GHz

    AU - Tamminen, A.

    AU - Lönnqvist, Anne

    AU - Mallat, J.

    AU - Räisänen, A. V.

    PY - 2008

    Y1 - 2008

    N2 - Transmittance and monostatic reflectivity of different radar absorbing materials at 650 GHz are presented. The reflectivity was measured in plane-wave conditions in a radar cross-section (RCS) range with vertical polarization. The lowest reflectivity level (-70 dB) was achieved with commercial absorbers TK THz RAM and Firam-500 with oblique incidence angles. Floor carpets were also studied, and the reflectivity level of those was found to be sufficiently low (from -50 to -60 dB) for use in antenna test ranges. Results agree with earlier studies and indicate the applicability of the RCS method in reflectivity measurements also at 650 GHz.

    AB - Transmittance and monostatic reflectivity of different radar absorbing materials at 650 GHz are presented. The reflectivity was measured in plane-wave conditions in a radar cross-section (RCS) range with vertical polarization. The lowest reflectivity level (-70 dB) was achieved with commercial absorbers TK THz RAM and Firam-500 with oblique incidence angles. Floor carpets were also studied, and the reflectivity level of those was found to be sufficiently low (from -50 to -60 dB) for use in antenna test ranges. Results agree with earlier studies and indicate the applicability of the RCS method in reflectivity measurements also at 650 GHz.

    KW - Antenna test range

    KW - Monostatic reflectivity

    KW - Radar absorbing materials (RAMs)

    KW - Radar cross section (RCS)

    U2 - 10.1109/TMTT.2008.916881

    DO - 10.1109/TMTT.2008.916881

    M3 - Article

    VL - 56

    SP - 632

    EP - 637

    JO - IEEE Transactions on Microwave Theory and Techniques

    JF - IEEE Transactions on Microwave Theory and Techniques

    SN - 0018-9480

    IS - 3

    ER -