Asteroid 2023 JF flew about 199,000 miles (320,000 km) away from Earth. It's estimated size is about 34 feet wide (10 meters), roughly the size of a bus. Orbit animation courtesy: NASA/JPL-Caltech ...

Count to ten – that’s all it takes for the RAF Typhoon to go airborne and rocket into a vertical climb. In this video, we capture the jaw-dropping moment as the Typhoon, proudly wearing D-Day ...

The proposed antenna element shown in Fig. 3 (a) is based on the stepped-fat dipole approach, with cut-off sections optimized to enlarge the bandwidth and decrease the mutual coupling with the ...

[DXCommander] shows us his 40 meter two-element vertical antenna build in the video below. A typical Yagi is just a dipole with some slightly longer or shorter elements to direct or reflect the ...

Near Vertical Incidence Skywave (NVIS) communication uses the ionosphere as a reflector to cover a continuous area with a radius of at least 150 km around the transmitter, on frequencies typically ...

The antenna consists of an open reflector cavity, as well as a power supply generated by an SMA connector that is connected together with a T-shaped copper structure integrating two Γ-shaped feeders, ...

In conclusion, a dipole antenna is a key component of any radio communication system. Whether it is used for broadcasting, wireless communication, or radar systems, a dipole antenna offers a ...

One of the essential issues in modern advanced materials science is to design and manufacture flexible devices, in particular in the framework of the Internet of Things (IoT), to improve integration ...

Think of a dipole antenna as a horizontally oriented vertical antenna. Instead of an antenna sticking up from the surface with a network of ground radials, however, there are two, equally sized ...

This work reports a three-dimensional (3D) stretchable wideband dipole antenna from mechanical assembly to simultaneously reduce the frequency detuning and enhance on-body performance.