Published April 5, 2005 | Version v1
Conference paper Metadata-only

94 GHz Zonal rings reflector for helicopter collision avoidance

Nguyen, B. D.
Migliaccio, Claire
Pichot, Christian
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)
IET

Description

A single-layer reflector antenna combining eight and four correcting Fresnel zones is presented. The progressive phase shift is achieved by circular and annular patches. The choice of a quarter-wavelength thickness substrate provides naturally 0 and 180° correcting zones that simplify the reflector design. A prototype of reflector antenna working at 94 GHz has been designed, built and measured. Measurement results show 70% improvement of antenna aperture efficiency compared to the half-wave Fresnel zone plate reflector .

Abstract

International audience

Additional details

Identifiers Origin repository
Created:
December 3, 2022
Modified:
November 30, 2023