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Starlink satellite is out of control and tumbling toward Earth

A malfunctioning Starlink satellite has suffered a partial breakup in orbit and is now spinning uncontrollably as it descends ...
IEEE

Energy Efficient Design of Active STAR-RIS-Aided SWIPT Systems

Abstract: In this paper, we consider the downlink transmission of a multi-antenna base station (BS) supported by an active simultaneously transmitting and reconfigurable intelligent surface (STAR-RIS) ...
IEEE

Millimeter-Wave Active Beam-Tilted Phased Array Modules and Seamless Integration Design With Ultrawideband Sub-6 GHz Antenna for Future V2X Applications

Abstract: In this article, an antenna system that seamlessly integrates millimeter-wave (mmWave) active phased array modules and an ultrawideband Sub-6 GHz antenna is proposed for future ...

Active thermal metasurfaces amplify heat signatures by a factor of nine

Light undergoes a unique phenomenon called superscattering, an optical illusion where a very small object scatters far more ...