A triple-slot active reflectarray cell using a ferroelectric capacitor

Kevin Nadaud (1) , Raphaël Gillard (1) , Erwan Fourn (1) , Caroline Borderon (1) , Hartmut Gundel (1)

1 IETR - Institut d'Électronique et des Technologies du numéRique

A tunable reflectarray phase-shifting cell, designed for a resonance frequency of 5.5 GHz, is presented. The cell is based on a triple-slot topology and loaded by a ferroelectric thin film capacitor with 60% tunability under 400 kV/cm bias electric field. The use of three slots allows reducing the losses and increasing the bandwidth of the cell. The cell provides 270 degrees of phase range with a maximum of 6 dB loss in the band.

Mots clés: thin film; tunability; Ferroelectric; reflectarray

Domaines: Electronique

Kevin Nadaud, Raphaël Gillard, Erwan Fourn, Caroline Borderon, Hartmut Gundel. A triple-slot active reflectarray cell using a ferroelectric capacitor. European Conference on Antennas and Propagation, Apr 2015, Lisbonnes, Portugal. ⟨hal-01116821⟩