Infrared phased-array antenna

    Authors

    C. T. Middlebrook; P. M. Krenz; B. A. Lail;G. D. Borernan

    Comments

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    Abbreviated Journal Title

    Microw. Opt. Technol. Lett.

    Keywords

    antenna-coupled detector; phased array; infrared antenna; SURFACE; Engineering, Electrical & Electronic; Optics

    Abstract

    Phased addition of currents from multiple dipole antennas is demonstrated for the first time at a wavelength of 10.6 mu m. Coplanar strip lines are used to interconnect the antennas, preserving the phase of the individual infrared-frequency currents, which are summed together at a common bolometric load. Angular pattern measurements on two-element dipole arrays show that the direction of maximum response depends on the phase difference between the currents contributed from each antenna, evaluated at the bolometer location. As more antennas are added together in phase, beam narrowing is observed. (c) 2008 Wiley Periodicals, Inc.

    Journal Title

    Microwave and Optical Technology Letters

    Volume

    50

    Issue/Number

    3

    Publication Date

    1-1-2008

    Document Type

    Article

    Language

    English

    First Page

    719

    Last Page

    723

    WOS Identifier

    WOS:000253106400052

    ISSN

    0895-2477

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