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  • Generalised absorption efficiency of Yagi-Uda antennas

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    100830_1.pdf (507.4Kb)
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    Accepted Manuscript (AM)
    Author(s)
    Shahpari, Morteza
    Thiel, David V
    Griffith University Author(s)
    Thiel, David V.
    Year published
    2014
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    Abstract
    The generalised absorption efficiency is the ratio of the all-spectrum absorbed to scattered energies. Although often estimated as 0.5, it should be rigorously calculated for the accurate estimation of fundamental limits. Many antennas, as tuned in the resonant frequency, absorb as much power as they scatter. One of the interesting properties of the Yagi-Uda antennas is more absorption rather scattering. Absorption, scattering, and extinction cross sections of a typical Yagi-Uda antenna are reported in this paper to study the generalised absorption efficiency for this antenna type.The generalised absorption efficiency is the ratio of the all-spectrum absorbed to scattered energies. Although often estimated as 0.5, it should be rigorously calculated for the accurate estimation of fundamental limits. Many antennas, as tuned in the resonant frequency, absorb as much power as they scatter. One of the interesting properties of the Yagi-Uda antennas is more absorption rather scattering. Absorption, scattering, and extinction cross sections of a typical Yagi-Uda antenna are reported in this paper to study the generalised absorption efficiency for this antenna type.
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    Conference Title
    2014 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM (APSURSI)
    Publisher URI
    http://www.2014apsursi.org/
    DOI
    https://doi.org/10.1109/APS.2014.6904621
    Copyright Statement
    © 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subject
    Antennas and propagation
    Publication URI
    http://hdl.handle.net/10072/67898
    Collection
    • Conference outputs

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