NASA says Artemis II can fly without its big, broken deep space antenna

Beyond the range of GPS and tracking satellites, the moonship depends on radio dish arrays for communication and navigation.
Microwaves & RF

Accelerate Antenna Design for Metal-Heavy Devices with GPU-Powered Simulation

GPU-accelerated electromagnetic simulation is redefining how engineers design and validate antennas in complex, electrically ...

Quantum-dot device can generate multiple frequency-entangled photons

Researchers have designed a new device that can efficiently create multiple frequency-entangled photons, a feat that cannot be achieved with today's optical devices. The new approach could open a path ...
The New York Times

‘Counting Every Day’: The Soldier Who Spent More Than a Year on the Front Line

Serhii Tyschenko, a Ukrainian combat medic, spent 472 days in a bunker. His case appears to be an extreme example of a problem that has long plagued Kyiv’s military. By Cassandra Vinograd and ...
IEEE

Two-Dimensional Wide-Angle Scanning Phased Array Based on Pattern Reconfigurable Two-Element Subarray

Abstract: This paper presents a two-dimensional (2D) wide-angle scanning phased array based on a pattern reconfigurable two-element subarray. The two-element subarray design method enables flexible 1D ...
IEEE

Small Two-Element Rectangular Curl Antenna with Plane Symmetry

Abstract: This paper proposes a small two-element rectangular curl antenna with plane symmetry. By feeding both elements with equal amplitude and in-phase, the antenna achieves an electrical ...