MIMO Energy harvesting Antennes BIE Luneburg lens End-fire Fabry Perot Cavity Slot antennas Radiation efficiency Varactor diode Poles Antennas Antenna measurements Microwave antennas FDTD Cylindrical structures Wireless communication systems Efficiency Thin film Operating frequency Electromagnetic absorption Beam scanning Network characteristic modes Metamaterials Polymères Anechoic chambers Reverberation chamber Anechoic chamber Periodic structures Epitaxy Inhomogeneous lenses Antenne Conformal Design Patch antenna Polymère électro-optique Millimeter waves Compact Cavity antenna Continuous beam steering Permittivity Wideband antenna Rectenna High efficiency Bandwidth Angular momentum Polymer Parallel plates Antennes miniatures ANTENNE Antenna radiation patterns Fabry-Perot cavity Schottky diode Antennes Miniaturized antennas Directivity Rectifier Wideband Monopole antennas UWB antenna Dielectric Tunability Reconfigurable hardware Analytical modeling Thin films Plasma antenna Microstrip antenna Complex natural resonance Directive antennas Perovskite Antenna Retournement temporel All-optical analog-to-digital converter Reconfigurable Singularity expansion method Measured results Antenna characterization Multiband Dielectric properties Broadband antenna Bandwidth enhancement Helix antenna Reconfigurable radiation patterns Matrix pencil method Microstrip antennas Near field Lens antennas Antenna arrays Miniaturization Orbital angular momentum Metamaterial Superdirectivity Compact antenna Antenna array Varactor diodes Reconfigurable antenna Ferroelectric Ku-band Propagation Characteristic modes Prediction