Correction of dielectric losses in practical leaky-wave antenna designs

J. L. Gómez-Tornero, G. Goussetis, A. Álvarez-Melcón

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


In this paper, the leaky-mode theory is applied to take into account for the dielectric losses in millimetre waveband inhomogeneous leaky-wave antennas. A practical dielectric-filled cosine-tapered periodic leaky-wave antenna working in the 45 GHz band is studied, showing how the desired sidelobes level and directivity are spoilt due to the effect of the losses. An iterative procedure is used to correct the negative effects of the losses in the radiation patterns of the leaky-wave structure. It is also shown the practical limits of the proposed correction approach. The leaky-mode theory is applied for the first time to compensate the losses in a practical leaky-wave antenna in hybrid waveguide printed circuit technology. This leaky-mode theory is validated with full-wave three-dimensional finite element method simulations of the designed antenna. © 2007 VSP.

Original languageEnglish
Pages (from-to)1025-1036
Number of pages12
JournalJournal of Electromagnetic Waves and Applications
Issue number8
Publication statusPublished - 1 Aug 2007


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