As a typical application in Industrial Internet of Things (IIoT), location-based service (LBS) are experiencing rapid development. To address the issue of user location privacy leakage during LBS, ...

In this paper, a new electromagnetic (EM) invisibility cloak is proposed utilizing phase gradient metasurfaces. The metasurfaces with high transmission efficiency are first design based on the ...

Israel had already destroyed Iran’s air defenses and taken control of its skies. President Donald Trump claimed that the air ...