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Dielectric wedge antenna with stepped phase correction in a nonradiative mode
Author(s) -
Malherbe J. A. G.,
Malekela P. M.
Publication year - 2007
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.22607
Subject(s) - dielectric , wedge (geometry) , aperture (computer memory) , microwave , optics , radiation pattern , antenna (radio) , antenna aperture , radiation , materials science , phase (matter) , physics , electrical engineering , optoelectronics , acoustics , engineering , telecommunications , quantum mechanics
The performance of a dielectric wedge antenna with stepped phase correction in a nonradiative dielectric structure is described. The stepped wave numbers are achieved by perforating the dielectric with a series of holes designed to modify the dielectric constant in a predetermined fashion. The aperture of the wedge is then divided into a number of zones, each with its own dielectric constant. The step correction of the aperture phase error results in a substantial improvement in radiation pattern. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2030–2032, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22607