Antenna-coupled VOx thin-film microbolometer array

    Authors

    F. J. Gonzalez; M. Abdel-Rahman;G. D. Boreman

    Abbreviated Journal Title

    Microw. Opt. Technol. Lett.

    Keywords

    microbolometer; vanadium oxide; antenna-coupled detectors; Engineering, Electrical & Electronic; Optics

    Abstract

    Two-dimensional arrays of log-periodic antenna-coupled microbolometers were fabricated using VOx and Nb thin films as bolometric materials, which have different temperature coefficients of resistance. Noise, response, and angular characteristics of both types of microbolometer arrays were measured and compared. VOx-based devices presented a 4.5X better response and 5.5X better signal-to-noise ratio than Nb-based devices. Radiation patterns show that a further increase in response can be obtained by better matching the VOx bolometer to the antenna elements. (C) 2003 Wiley Periodicals, Inc.

    Journal Title

    Microwave and Optical Technology Letters

    Volume

    38

    Issue/Number

    3

    Publication Date

    1-1-2003

    Document Type

    Article

    Language

    English Estonian

    First Page

    235

    Last Page

    237

    WOS Identifier

    WOS:000183839900021

    ISSN

    0895-2477

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