In this letter, we propose 2×2 array antenna capable of 3D beam steering and operating frequency adjustment. Each element consists of a patch antenna and a narrow-width I-shaped stub, with two ...

A silicon-lithium niobate metasurface controls light through air at gigahertz speeds, advancing compact systems for optical ...

Why does Turkey’s new stealth fighter, the TF Kaan, bear such a close resemblance to the legendary F-22 Raptor? The reason is not merely cosmetic, but rather in the physics and engineering of evading ...

As the Fourth of July approached, President Trump was riding high—unaware that a political firestorm from his own base was about to consume his administration.

But the next phase aims to raise the stakes significantly. By 2027, DARPA reportedly plans to transmit 10 kilowatts over 200 kilometers, potentially using airborne relays to beam power to drones ...

Work on the Route 6 reconstruction project is into the final phase as traffic transitions to the new lanes later this month. Traffic is expected to start using the reconstructed lanes of Route 6 ...

This article describes a polar phase-tracking receiver (PT-RX) architecture that can work with various modulations including differential phase shift keying (DPSK), amplitude phase shift keying (APSK) ...