Title :
Measurement of a Novel 40 GHz Planar Antenna using Planar Near-field Scanning Techniques and a Hologram CATR
Author :
Sehm, T. ; Hirvonen, T. ; Ala-Laurinaho, J. ; Räisänen, A.V.
Author_Institution :
Helsinki University of Technology, Radio Laboratory, P.O.Box 3000, FIN-02015 HUT, Finland. Phone: +358 9 451 2886, Fax: +358 9 451 2152, e-mail: tse@radio.hut.fi
Abstract :
Planar near-field scanning and a hologram type of compact antenna test range (CATR) are used to determine the radiation characteristics of a novel 40 GHz planar antenna. The results are compared with those obtained from a far-field measurement. The near-field scanning method works very well, and as a result, a complete three dimensional radiation pattern is obtained as well as the aperture distribution of the antenna under test (AUT). The same antenna was also measured with a hologram CATR. Despite the fact that the used hologram CATR had a design error making the quiet-zone too small, it was demonstrated that the hologram CATR method is feasible at long millimeter wavelengths.
Keywords :
Antenna measurements; Apertures; Extraterrestrial measurements; Gears; Near-field radiation pattern; Planar arrays; Probes; Sampling methods; Testing; Wavelength measurement;
Conference_Titel :
Microwave Conference, 1997. 27th European
Conference_Location :
Jerusalem, Israel
DOI :
10.1109/EUMA.1997.337906
