Reflectarray Antenna Leaky waves Transmit arrays Ka-band Circular waveguides Reconfigurable Apertures Antenna measurements Orbital angular momentum Slotted waveguides Antennes Transmitarray Periodic structures Planar lens Substrate integrated waveguides Wideband Transmitting antennas Parallel plate waveguide Directive antennas Optimization Reflectarrays IPO Prototypes Feeds Aperture antennas Bandwidth Reconfigurable antenna Rectangular waveguides Patch antenna Arrays Bessel beams Horn antenna Antenna array Satellite communications Biological effects Scanning antennas Radar Directional patterns antenna Substrates 60-GHz band Unit-cell Millimeter-wave antennas Design Transmitarray antenna Antennes BIE Near field Millimeter waves Reflectarray antennas Large bande Discrete lens Fabry-Perot cavity Microwave antenna arrays Microwave antennas Passive repeater FDTD Dual-polarization Broadband antennas Metasurface Antenna phased arrays Ka band Reconfigurable hardware Slot antennas Lens antennas Method of moments Antenna radiation patterns Wireless power transfer Dosimetry Phase shifters Directivity 60 GHz Inhomogeneous lenses Traveling wave antennas 5G Circular polarization Millimeter-waves Multibeam antennas High gain antenna Focusing Scan blindness Near-field focusing Antennas Tunability Waveguides Microwave Leaky wave antennas Antenna lobes Frequency selective surfaces Plasma antenna Microstrip antennas Mutual coupling Horn antennas Imaging systems Antenna arrays Gain Frequency bands Millimeter wave DG-FDTD Cylindrical structures Equivalent circuits