Search results for Ultra Wideband

Astronomy Dec 26, 2023

Astronomers detect new pulsar wind nebula and its associated pulsar

Astronomers from the Western Sydney University in Australia and elsewhere report the detection of a new pulsar wind nebula and a pulsar that powers it. The discovery, presented in a paper published Dec. 12 on the pre-print ...

Optics & Photonics Oct 11, 2023

Ultra-wideband heterogeneous integrated photodiodes on thin-film lithium niobate platform

Owing to its strong electro-optic coefficient and wide transparency window, lithium niobate (LN) has become an attractive photonic material. Thin-film lithium niobate (TFLN) technology has enabled tight mode confinement and ...

Optics & Photonics Sep 26, 2023

Single sideband modulation technique can relax the bandwidth restriction

As an ultra-wideband microwave signal, amplitude shift keying (ASK) can be used in many applications, such as electronic warfare, wireless communications and modern radar systems. Initially, ASK microwave signals are generated ...

Astronomy Aug 29, 2023

Researchers propose new technology to improve observation sensitivity of QiTai radio telescope

The world's most powerful steerable 110-meter radio telescope, also known as the QiTai radio Telescope (QTT), will be built by Xinjiang Astronomical Observatory (XAO) of the Chinese Academy of Sciences (CAS) over a period ...

Space Exploration Aug 3, 2023

NASA's trio of mini rovers will team up to explore the moon

Working together without direct human input, three rovers each the size of a carry-on bag will map the lunar surface in 3D, using cameras and ground-penetrating radar.

Astronomy Jul 19, 2023

VERA unveils surroundings of rapidly growing black holes

An international team of astronomers used the state-of-the-art capability of VERA, a Japanese network of radio telescopes operated by NAOJ, to uncover valuable clues about how rapidly growing "young" supermassive black holes ...

Nanomaterials Jul 13, 2023

Scientists presents a one-step laser synthesis method for fabricating wideband microwave absorption metamaterial

Scientists from Chinese Academy of Sciences Ningbo Institute of Materials Technology and Engineering, National Physical Laboratory (U.K.), The University of Manchester (U.K.) and National University of Singapore have developed ...

Astronomy Jul 13, 2023

Study sets new constraints on the kinetic mixing of hidden photon dark matter

As dark matter is comprised of particles that do not absorb, emit or reflect light, it cannot be observed directly with the methods used to observe conventional matter. In recent years, astrophysicists worldwide have thus ...

Veterinary medicine Jun 20, 2023

Backpack-wearing chickens are helping change the way we study animal welfare

The chicken sheds I conduct research in are enormous—over three-quarters the length of a football field and 20 meters wide. In each house, around 28,000 near-identical broiler chickens, which are the type we use for meat, ...

Astronomy Aug 17, 2022

New discovery may offer clues to 'missing' pulsars

Millisecond pulsars (MSPs) are evolved neutron stars with short spin periods that have gone through a long period of mass transfer in a low-mass X-ray binary phase. Globular clusters (GCs)—conglomerations of tens of thousands ...

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