If you’re partial to browsing AliExpress, Banggood, or eBay for unusual hardware, you may have seen the HB100 Doppler Radar modules. These are a PCB with a metal can on board, and their reverse side ...

A new material barely thicker than kitchen cling film can block more than 99.9999999 percent of electromagnetic waves in frequencies used by radar and communications. It’s also flexible, exceptionally ...

Radars send and receive radio-frequency signals to determine object location, movement, and characteristics based on the time and direction of returned signals. Different radar systems operate at ...

MECHANICSBURG, Pa. – U.S. Navy logistics experts needed spare radar common frequency generators for the AN/SPQ-9B target-detection-and-tracking radar aboard Navy surface warships. They found a ...

A new review in the Journal of Materials Science maps how multifunctional polymer composites, metamaterials, and active ...

China has developed a radar system that could detect stealth fighters from a long distance, its creator has told state media. Liu Yongtan, a member of the Chinese Academy of Sciences, told Naval and ...

Two of the radar wavelengths employed are down in the UHF (900 MHz) and C bands (5 GHz). These frequencies tend to diffract around sharp corners or creep around curves, after which they can bounce off ...

It’s been more than a year since [Henrik Forstén] built the first iteration of his synthetic-aperture radar (SAR) imaging drone, and he’s certainly been productive in the meantime. Not only did he ...

A team of scientists from the Naval Research Laboratory, the Air Force Research Laboratory’s (AFRL’s) Research Vehicles Directorate, Kirtland Air Force Base, N.M., and the University of New Mexico ...