Testing of a 1.5-m reflector antenna at 322 GHz in a CATR based on a hologram

Author

Häkli, Janne ; Koskinen, Tomi ; Lönnqvist, Anne ; Säily, Jussi ; Viikari, Ville ; Mallat, Juha ; Ala-Laurinaho, Juha ; Tuovinen, Jussi ; Räisänen, Antti V.

Author_Institution

MilliLab, Helsinki Univ. of Technol., Espoo, Finland

Volume

53

Issue

10

fYear

2005

Firstpage

3142

Lastpage

3150

Abstract

Hologram-based compact antenna test range (CATR) is a potential method for testing large antennas at submillimeter wavelengths. This paper describes testing of a 1.5-m single offset parabolic reflector antenna with a 3-m-diameter hologram-based CATR. This is the first time such a measurement is carried out at submillimeter wavelengths. The antenna tests were done in a CATR that was specifically designed and constructed for these tests. The measured radiation pattern at the frequency of 322 GHz is presented. The measured pattern corresponds reasonably well to the simulated pattern of the antenna. The effect of the quiet-zone field nonidealities on the measurement results and the reasons for the discrepancies in the measured antenna beam are discussed.

Keywords

antenna radiation patterns; antenna testing; holography; offset reflector antennas; submillimetre wave antennas; submillimetre wave measurement; 1.5 m; 3 m; 322 GHz; CATR; antenna beam measurement; antenna testing; hologram-based compact antenna test range; parabolic reflector antenna; radiation pattern; submillimeter wavelength; Antenna measurements; Antenna radiation patterns; Etching; Frequency; Manufacturing; Reflector antennas; Submillimeter wave measurements; Submillimeter wave propagation; Testing; Wavelength measurement; Antenna measurements; compact antenna test range (CATR); hologram; submillimeter wave antennas;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2005.856343

Filename

1514566