A new symmetric feeding technique for a broadband series-fed antenna-array

Creators: Bisognin, A.; Ferrero, Fabien; Luxey, C.; Jacquemod, G.; Pilard, R.; Gianesello, F.; Gloria, D.; Titz, D.; Brachat, P.

Others:: STMicroelectronics [Crolles] (ST-CROLLES); 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)-Université Côte d'Azur (UCA); Electronique pour Objets Connectés (EpOC) ; 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)-Polytech Nice-Sophia-Université Côte d'Azur (UCA); Orange Labs [La Turbie] ; France Télécom; CREMANT

Description

In this paper, we present a new symmetric feeding technique for a broadband planar antenna-array. The antenna consists of four linear series-fed arrays of four microstrip patches positioned in parallel. To avoid any beam tilt during frequency scanning, one side of the array is supplied by a 0° signal whereas the same 180° out-of-phase signal feeds the other side of the array. A rat-race is especially designed to generate these two feeding signals. In comparison with other feeding techniques, there is no need to add some resistive load. To validate the concept, a 60 GHz prototype is designed and measured on Taclamplus substrate.

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A new symmetric feeding technique for a broadband series-fed antenna-array

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