Title :
Switchable Faraday rotation by artificial electric gyrotropy in a slot-ring metamaterial structure
Author :
Kodera, Tatsuya ; Sounas, Dimitrios ; Caloz, C.
Author_Institution :
Dept. of Electr. Eng., Yamaguchi Univ., Ube, Japan
Abstract :
A switchable electric magnet-less non-reciprocal metamaterial (E-MNM) is proposed. This E-MNM uses antisymmetric FET-pair isolating loads along its ring particles, whose traveling-wave direction, and hence the direction of gyrotropy, can be reversed by switching the biasing voltages of the FET-pair circuit. The resulting electrostatically reversible Faraday rotation across an E-MNM screen is demonstrated experimentally.
Keywords :
Faraday effect; microwave field effect transistors; microwave metamaterials; optical rotation; E-MNM; antisymmetric FET-pair circuit; artificial electric gyrotropy; electrostatically reversible Faraday rotation; ring particles; slot-ring metamaterial structure; switchable Faraday rotation; switchable electric magnet-less nonreciprocal metamaterial; traveling-wave direction; Antennas and propagation; Faraday effect; Field effect transistors; Magnetic materials; Magnetic moments; Metamaterials; Switches; Faraday rotation; Gyrotropy; metamaterials; non-reciprocity; ring resonators;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
