As television moved out of the laboratory and into regular broadcasting schedules during the decade of the 1930s, it was obvious early on that the “hand signal” methodology used in radio broadcasts ...

Antenna design and wireless communication technologies form the backbone of modern telecommunication systems, enabling high-speed connectivity and broad spectral efficiency. Recent methodologies have ...

Metasurfaces, as 2D artificial electromagnetic materials engineered at subwavelength scales, enable efficient manipulation of electromagnetic waves far beyond natural materials, bridging the gap ...

Four parties will verify bidirectional communication by equipping optical wireless communication devices on Low Earth Orbit satellites and HAPS. The National Institute of Information and ...