Topology Optimization of Sub-Wavelength Antennas

Aycan Erentok, Ole Sigmund

    Research output: Contribution to journalJournal articleResearchpeer-review


    We propose a topology optimization strategy for the systematic design of a three-dimensional (3D), conductor-based sub-wavelength antenna. The post-processed finite-element (FE) models of the optimized structure are shown to be self-resonant, efficient and exhibit distorted omnidirectional, elliptically polarized far-field radiation patterns. The computed approximate Q value for this antenna is QZ0)≈ 7.74 for ω0=2π × 350.8 MHz and it is 1.64 times larger than the theoretical lower bound value.
    Original languageEnglish
    JournalI E E E Transactions on Antennas and Propagation
    Issue number1
    Pages (from-to)58-69
    Publication statusPublished - 2011

    Bibliographical note

    This work was supported in part by the Danish Agency for Science, Technology and Innovation through the grant “Topology Optimization of Electromagnetic Metamaterials for Miniaturization of Wireless Communication Antennas (TopAnt)” and in part by an Eurohorcs/ESF European Young Investigator Award (EURYI,


    • Antenna design
    • Tpology optimization
    • Q factor
    • Eectrically small antennas


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