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Contactless Antenna Gain Pattern Estimation From Backscattering Coefficient Measurement Performed Within a Reverberation Chamber.
- Source :
-
IEEE Transactions on Antennas & Propagation . Mar2022, Vol. 70 Issue 3, p2318-2321. 4p. - Publication Year :
- 2022
-
Abstract
- This communication presents the antenna gain pattern estimation from backscattering coefficient measurement performed within a reverberation chamber (RC). The antenna backscattering coefficient is measured for two load conditions, namely, an open circuit (OC) and a 50 $\Omega $ load, enabling to distinguish the radiation and structural modes from the total backscattered field. This approach is applied to the measurement of the gain pattern of a Vivaldi antenna at 6.5 GHz and compared with a conventional transmission-type measurement within an anechoic chamber (AC). The main lobe of the radiation pattern is in good agreement between both measurements. The difference between maximal gains, retrieved after a reference measurement using a metallic plate, is equal to 0.04 dB. A second validation is performed using a log-periodic antenna at 3.5 GHz, showing less than 0.76 dB difference over the measured angular range. To the best of our knowledge, this is the first time that a contactless gain pattern measurement is performed and validated within an RC. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0018926X
- Volume :
- 70
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Antennas & Propagation
- Publication Type :
- Academic Journal
- Accession number :
- 155696661
- Full Text :
- https://doi.org/10.1109/TAP.2021.3111184