Testing of a 1.5-m reflector antenna at 322 GHz in a CATR based on a hologram
| Autor: | Janne Häkli, Anne Lönnqvist, Jussi Säily, Ville Viikari, Juha Mallat, Juha Ala-Laurinaho, Jussi Tuovinen, Antti V. Räisänen, Tomi Koskinen |
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| Rok vydání: | 2005 |
| Předmět: |
Physics
Coaxial antenna Cassegrain antenna business.industry Antenna measurement Astrophysics::Instrumentation and Methods for Astrophysics Holography Physics::Optics Test method compact antenna test ranges sub-millimeter waves law.invention Periscope antenna Radiation pattern Wavelength Optics law antenna measurements Electrical and Electronic Engineering business hologram Computer Science::Information Theory |
| Zdroj: | Häkli, J, Koskinen, T, Lönnqvist, A, Säily, J, Mallat, J, Ala-Laurinaho, J, Viikari, V, Räisänen, A V & Tuovinen, J 2005, ' Testing of a 1.5-m reflector antenna at 322 GHz in a CATR based on a hologram ', IEEE Transactions on Antennas and Propagation, vol. 53, no. 10, pp. 3142-3150 . https://doi.org/10.1109/TAP.2005.856343 |
| ISSN: | 0018-926X |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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