A new design method for low sidelobe level log-periodic dipole antennas

James K. Breakall, Rafael A. Rodríguez Solís

    Research output: Contribution to journalArticlepeer-review

    3 Scopus citations


    A new design procedure for log-periodic dipole arrays is presented in this paper. In this method, either the scale factor or the number of dipole elements is selected, after the boom length, and the operating frequency region are specified. The procedure is applied iteratively, in conjunction to the Numerical Electromagnetic Code, to produce a design with low sidelobe levels. With this new procedure, the antenna designer has more control over the boom length; in older techniques, the boom length and the element spacing were dependent on previous calculations, which frequently resulted on unreasonable values. Results for several designs are presented, showing the peak gain to peak-sidelobe level ratio, and the antenna gain as a function of frequency, for different scale factors and boom lengths, for a frequency range of 13 to 30 MHz.

    Original languageEnglish (US)
    Pages (from-to)9-15
    Number of pages7
    JournalApplied Computational Electromagnetics Society Journal
    Issue number3
    StatePublished - Nov 1996

    All Science Journal Classification (ASJC) codes

    • Astronomy and Astrophysics
    • Electrical and Electronic Engineering


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