The paper has presented results for two multiband printed antennas which can be placed on glass or under plastic panels on a car providing reception at AM, FM, and both DAB bands. The antenna geometries are flexible so that other band spacings, polarisation responses or positions on the car can be accommodated. The radiation patterns are nearly omnidirectional at the lower frequency bands although the car bodywork may block part of the radiation pattern particularly at higher frequencies. At 1.5 GHz the reflective infrared coating on the windows has a very significant attenuation and scattering effect and, given that in future most cars will be so equipped, this presents a challenge for antenna engineers to overcome. The antennas are clear alternatives to other emerging printed designs. A wide bandwidth dual band PIFA antenna has been presented. Using two antennas on a bumper allround coverage can be obtained. A hybrid telephone antenna is described which gives omni-directional radiation patterns in azimuth while providing wide bandwidths at two frequency bands, 900 and 1800 MHz. The antenna is low profile and designed to be roof mounted or hidden under a plastic panel.


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    Title :

    Hidden antennas for the foresight vehicle


    Additional title:

    Integrierte Antennen für das 'voraussehende Fahrzeug'


    Contributors:
    Langley, R. (author) / Breden, R. (author) / Viratelle, D. (author) / Economou, L. (author)


    Publication date :

    2002


    Size :

    5 Seiten, 12 Bilder, 6 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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