Compact lens antenna for automobile anticollision radar at 77 GHz
- Others:
- Laboratoire d'Electronique, Antennes et Télécommunications (LEAT) ; 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)-Centre National de la Recherche Scientifique (CNRS)
- Orange Labs [La Turbie] ; France Télécom
- Institut d'Électronique et des Technologies du numéRique (IETR) ; Université de Nantes (UN)-Université de Rennes 1 (UR1) ; Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes) ; Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)
Description
We present a 130mm length * 100mm height antenna suitable for automotive radar at 77 GHz that can be included in the bumper. The antenna is simulated with a software developed by France Télécom R&D, SRSRD. The antenna is made of a primary source connected with a WR-10 waveguide feeding a dielectric lens made in Eccostock 0005 of 2.53 dielectric permittivity. The primary source is composed of a small circular horn continued by a circular waveguide and a circular to rectangular (WR-10) waveguide transition. The circular horn is optimized in order to radiate a vertical polarization. The source provides symmetrical radaition in E and H-planes with 16 dBi gain. The gain of the source is higher than in usual lens systems. It can be placed far from the lens reducing its width that implies the diminution of its dielectric losses. The complete antenna has been shielded and achieves 33.5 dBi gain, 2.7° beamwidth and side lobes level of -26 dB in E and H planes.
Abstract
International audience
Additional details
- URL
- https://hal.archives-ouvertes.fr/hal-00984155
- URN
- urn:oai:HAL:hal-00984155v1
- Origin repository
- UNICA