Title :
A triple-slot active reflectarray cell using a ferroelectric capacitor
Author :
Nadaud, Kevin ; Gillard, Raphael ; Fourn, Erwan ; Borderon, Caroline ; Gundel, Hartmut W.
Author_Institution :
Univ. of Nantes, Nantes, France
Abstract :
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.
Keywords :
active antenna arrays; ferroelectric capacitors; reflectarray antennas; thin film capacitors; ferroelectric capacitor; ferroelectric thin film capacitor; frequency 5.5 GHz; loss 6 dB; phase shifting cell; triple slot active reflectarray cell; Antennas; Bandwidth; Capacitors; Copper; Standards; Topology; Ferroelectric; reflectarray; thin film; tunability;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon
