Air Traffic Controllers use Automatic Dependent Surveillance-Broadcast (ADS-B) as an alternative to secondary radar to track aircraft. The ADS-B is transmitted by the aircraft and contains information ...

If you’ve seen a big air-variable capacitor, you may have noticed that some of the plates may have slots cut into them. Why? [Mr Carlson] has the answer in the video below. The short answer: you can ...

Abstract: To address the dual requirements of antenna miniaturization and medium-to-long range communication for marine uncrewed surface vehicles (USVs), this letter proposes a dynamic seawater ...

Abstract: This study introduces a novel rectenna array that combines a dipole antenna with a loop antenna, using a rectifying diode as the dipole and two LEDs as the loop. The simulated ...

During its record-setting flyby in December 2024, the spacecraft got closer to the Sun than any human-made object ever has. From just under 4 million miles away, Parker’s Wide-Field Imager (WISPR) ...