Photonics-Based Near-Field Measurement and Far-Field Characterization for 300-GHz Band Antenna Testing
- Others:
- Gifu University
- Institut d'Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN) ; Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA) ; Université catholique de Lille (UCL)-Université catholique de Lille (UCL)
- Photonique THz - IEMN (PHOTONIQUE THZ - IEMN) ; Institut d'Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN) ; Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA) ; Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA) ; Université catholique de Lille (UCL)-Université catholique de Lille (UCL)
- STMicroelectronics [Crolles] (ST-CROLLES)
- Laboratoire de Polytech Nice-Sophia (Polytech'Lab) ; Université Nice Sophia Antipolis (1965 - 2019) (UNS) ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)
- National Institute of Information and Communications Technology [Tokyo, Japan] (NICT)
- Chiba Institute of Technology (CIT)
- The measurements conducted in Lille received support from IEMN UHD Flagship, SPATIOTERA ANR Project, MEL-I-site Teril-Waves, and DYDICO projects as well as CPERPhotonics for Society. 300 GHz characterization steps are also supported by the ITN Marie-Curie "TERAOPTICS," funded under the E.U. Horizon 2020.
- This work was supported in part by the Horizon 2020, the European Union's Framework Program for Research and Innovation under Grant 814523.ThoR has also received funding from the National Institute of Information and Communications Technology in Japan.
- Laboratoire commun STMicroelectronics-IEMN T1
- PCMP CHOP
- ANR-19-CE24-0012,SPATIOTERA,Multiplexage SPATIal en gamme térahertz pour les cOmmunications sans fil à 1 TERAbit/s(2019)
- European Project: 956857,H2020,H2020-MSCA-ITN-2020,TERAOPTICS(2020)
- European Project: 814523,H2020,H2020-EUJ-2018,ThoR (2018)
Description
In this study, photonics-based near-field measurement and far-field characterization in a 300-GHz band are demonstrated using an electrooptic (EO) sensor with planar scanning. The field to be measured is up-converted to the optical domain (1550 nm) at the EO sensor and delivered to the measurement system with optical fiber. The typical phase drift of the system is 0.46° for the one-dimensional measurement time of 13 s, which is smaller than the standard deviation of the phase measurement of 1.2° for this time scale. The far-field patterns of a horn antenna calculated from the measured near-field distribution are compared with that measured with the direct far-field measurement system using a vector network analyzer. For the angular related parameters, the accuracy of the results obtained by our near-field measurement are comparable to that of those obtained by direct far-field measurements. The sidelobe level discrepancy (approximately 1 dB) between the results obtained based on our near-field measurement and those from the direct far-field measurements are attributed to the excess noise of the probe correction data. We believe that photonics-based near-field measurements with spherical EO probe scanning will pave the way for the characterization of high-gain antennas at the 300-GHz band.
Abstract
International audience
Additional details
- URL
- https://hal.archives-ouvertes.fr/hal-03694327
- URN
- urn:oai:HAL:hal-03694327v1
- Origin repository
- UNICA