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.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Compact wireless antennas using an artificial dielectric lens


    Contributors:
    Sabet, K.F. (author) / Ozdemir, T. (author) / Frantzis, P. (author) / Sarabandi, K. (author) / Katehi, L.P.B. (author)


    Publication date :

    2002-01-01


    Size :

    559679 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    3.0204 Compact Wireless Antennas using an Artificial Dielectric Lens

    Institute of Electrical and Electronics Engineers | British Library Conference Proceedings | 2002



    Deployable RF Lens Antennas

    Hamidi, Massih / Withington, James / Wiswell, Eric | AIAA | 2002


    Deployable microwave lens antennas

    Hamidi, M. / Withington, J. / Wiswell, E. | IEEE | 2002


    3.0203 Deployable Microwave Lens Antennas

    Institute of Electrical and Electronics Engineers | British Library Conference Proceedings | 2002