Spiral antenna with parasitic radiating element

Vincent Callec (1) , Erwan Fourn (1) , Raphaël Gillard (1) , Hubert Diez (2)

1 IETR - Institut d'Électronique et des Technologies du numéRique
2 CNES - Centre National d'Études Spatiales [Toulouse]

This paper presents the integration of radiating elements over a two-arm Archimedean spiral antenna. The radiation bandwidth of a spiral antenna printed over a ground plane can be improved by these elements. In this way, a 1:10 bandwidth can be achieved with good performance. As an example, this paper presents a spiral antenna working from 1 to 10GHz with a constant gain thanks to two concentric rings placed 15mm above the antenna.

Mots clés: Archimedean spiral antenna; ultra-wideband antenna.

Mots clés: ultra-wideband antenna

Domaines: Electronique; Electromagnétisme

Vincent Callec, Erwan Fourn, Raphaël Gillard, Hubert Diez. Spiral antenna with parasitic radiating element. 43rd European Microwave Conference, Oct 2013, Nuremberg, Germany. pp.1719-1722. ⟨hal-00926424⟩