This paper presents a novel design for compact multifunction antennas for wireless applications. To reduce the physical size of the antenna, a high permittivity substrate or superstrate is utilized. In order to suppress the surface waves in the dielectric slab, a grading of the index profile is proposed in both axial and radial directions. Furthermore, the index grading can be done in the antenna feed area to achieve impedance matching. A low-cost and easy-to-manufacture way of achieving the graded index profile is proposed, whereby a set of air voids are created inside the dielectric material to realize an effective dielectric constant. Extensive simulation and experimental results are presented for a slot ring antenna with a high permittivity dielectric superstrate lens.


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    Titel :

    Compact wireless antennas using an artificial dielectric lens


    Beteiligte:
    Sabet, K.F. (Autor:in) / Ozdemir, T. (Autor:in) / Frantzis, P. (Autor:in) / Sarabandi, K. (Autor:in) / Katehi, L.P.B. (Autor:in)


    Erscheinungsdatum :

    01.01.2002


    Format / Umfang :

    559679 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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