In this work, the influence of resistive absorbers in the vicinity of small antennas was investigated, in order to define a lower limit for the size of a small anechoic chamber for antenna calibration and radiation pattern measurements, with respect to the distance between the antenna under test (AUT) and the RF absorbers lining the walls. Furthermore, the influence of a relatively narrow transmission channel, formed by the absorbers on the side walls between the measurement antenna and the AUT was investigated. It was found by measurements that absorbers with the length of 610 mm do not have a measurable effect on the radiation characteristics of a small antenna at around 1.8 GHz, as long as they are kept more than 100 mm from the AUT, and the transmission channel formed by the absorbers between the antennas is wider than 100 mm.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Effects of RF absorbers on measurements of small antennas in small anechoic chambers


    Contributors:

    Published in:

    Publication date :

    2001-11-01


    Size :

    408859 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Microwave absorbers and anechoic chambers

    Pyck, J. | Tema Archive | 1985


    Broadband compact absorbers for anechoic linings

    Fuchs, H. / Zha, X. / Babuke, G. | British Library Conference Proceedings | 2004


    Free Field Simulation in Anechoic Chambers

    Weinstein, Jonathan / Clemente, Victor | SAE Technical Papers | 2001