Connect with us

Published

2 years ago

on

Researchers at the Indian Institute of Science (IISc) are working on designing antennas that can empower 6G technology, which is instrumental in realising efficient V2X (Vehicle to Everything) communications. In a recent study, the team, led by Debdeep Sarkar, Assistant Professor at the Department of Electrical Communication Engineering, shows how self-interference in full-duplex communication antennas can be reduced, and consequently the movement of signals across the communication network can be faster and more bandwidth-efficient.

“Such full-duplex antennas are particularly helpful for applications that require almost instantaneous relay of commands, like driverless cars”, Bengaluru-based IISc said in a statement on Friday.

Full-duplex antennas consist of a transmitter and a receiver to send and receive radio signals.

Traditional radio transceivers are half duplex, which means that they either use signals of different frequencies for sending and receiving or there is a time lag between the signal transmitted and the signal received.

This time lag is needed to ensure that there is no interference – the signals going back and forth should not cross paths with each other, similar to two people talking to each other at the same time, without pausing to listen to the other. But this also compromises the efficiency and speed of signal transfer.

In order to transmit data much faster and more efficiently, full-duplex systems are required, where both the transmitter and receiver can operate signals of the same frequency simultaneously. For such systems, eliminating self-interference is key. This is what Sarkar and his IoE-IISc postdoctoral fellow, Jogesh Chandra Dash, have been working on for the past few years, the statement said.

“The broad objective of the research is that we want to eliminate the signal that is coming as self-interference,” says Sarkar.

There are two ways to cancel self-interference – passive and active. Passive cancellation is done without any additional instrument, by just designing the circuit in a certain way (for example, increasing the distance between the two antennas).

Active cancellation relies on additional components like signal processing units to cancel out the self-interference. But the components needed for these steps can make the antenna bulky and expensive. What is needed, instead, is a compact, cost-efficient antenna which can be easily integrated into the rest of the circuitry of any device.

The antenna developed by Sarkar and Dash, by virtue of its design, relies on passive interference, allowing it to operate as a full-duplex system. It consists of two ports, either of which can act as transmitter or receiver. The two ports are isolated from each other by electromagnetic tools called metallic vias. Metallic vias are holes drilled into the metal surface of the antenna which disrupt the electric field. In this way, the team managed to cancel out most of the interference passively, alongside achieving a cost-effective and compact design.

“We are eliminating all the conventional techniques for self-interference cancellation, and we are integrating a very simple structure that can be installed in a car,” says Dash.

In the immediate future, the team plans to optimise their device so that it can entirely remove passive interference, and reduce the overall size of the antenna. Then, it can easily be fixed onto a vehicle where it can transmit and receive data at very high speeds, bringing driverless operation as well as 6G mobile connectivity closer to reality, the statement added.

Affiliate links may be automatically generated – see our ethics statement for details.

Related Topics:
Continue Reading

Science

Newly Detected Seaborgium-257 Offers Critical Data on Fission and Quantum Shell Effects

Published

3 hours ago

on

July 2, 2025

By

Newly Detected Seaborgium-257 Offers Critical Data on Fission and Quantum Shell Effects

German Scientists at GSI Helmholtzzentrum für Schwerionenforschung found a new superheavy isotope, 257Sg, named Seaborgium, which reveals unexpected details about the stability and nuclear fission. This study was published in Physical Review Letters and describes how this isotope, made by fusing chromium-52 with lead-206, survived for 12.6 milliseconds, longer than usual. The rare longevity and decay into 253Rf provide new indications of how K-quantum numbers or angular momentum impact the fission resistance. The findings fill in the gaps and give us an understanding of the effects of quantum shells in superheavy nuclei, which is crucial for preventing immediate disintegration.

Challenging Traditional Views on K-Quantum Numbers and Fission

As per the study by GSI, it challenges conservative views on how K-quantum numbers impact fission. Previously, it was found that the higher K values lead to greater fission hindrance, but after getting the findings from the GSI team, a more complex dynamic emerged. They found that K-quantum numbers offer hindrance to fission, but it is still ot known that it is how much, said Dr. Pavol Mosat, the study’s co-author.

Discovery of First K-Isomeric State in Seaborgium

An important milestone is the identification of the first K-isomeric state in seaborgium. In 259Sg, the scientists found that the conversion of the electron signal occurs 40 microseconds after the nuclear formation. This is clear evidence of the high angular momentum K-isomer. These states have longer lifetimes and friction in fission in a more effective way than their ground-state counterparts.

Implications for the Theorised Island of Stability

This discovery by the scientists provides key implications for the Island of stability, which has long been theorised. It is a region where superheavy elements could have comparatively long half-lives. If K-isomers are present in the still undiscovered elements such as 120, they can enable scientists in the detection of nuclei that would otherwise decay in just under one microsecond.

Synthesising 256Sg with Ultra-Fast Detection Systems

This team of German Scientists under GSI is now aiming to synthesise 256Sg, which might decay quicker than observed or predicted. Their success is dependent on the ultra-fast detection systems created by GSI, which are capable of capturing events within 100 nanoseconds. This continued research by the team may help in reshaping the search and studying the heaviest elements in the periodic table.

For the latest tech news and reviews, follow Gadgets 360 on X, Facebook, WhatsApp, Threads and Google News. For the latest videos on gadgets and tech, subscribe to our YouTube channel. If you want to know everything about top influencers, follow our in-house Who’sThat360 on Instagram and YouTube.

Further reading:
257Sg, seaborgium, K-isomer, superheavy, elements, nuclear stability, fission, GSI, TASCA, Physical Review Letters, element 120, island of stability

OpenAI Says It Has No Plan to Use Google’s In-House Chip



Apple Loses Bid to Dismiss US Smartphone Monopoly Case

Continue Reading

Science

NASA CODEX Telescope on ISS Reveals Hidden Secrets of the Sun’s Corona

Published

3 hours ago

on

July 2, 2025

By

NASA CODEX Telescope on ISS Reveals Hidden Secrets of the Sun’s Corona

A mini solar telescope aboard the International Space Station caught the first-ever images, which reveal the subtle and never-seen changes in the outer atmosphere of the Sun. It is known as the Coronal Diagnostic Experiment (CODEX) and has been designed to understand the solar corona, the outer layer of the Sun, in depth. This mini telescope functions like a coronagraph, which blocks the Sun’s disk to imitate the total solar eclipse. CODEX was delivered through SpaceX Dragon on November 5, 2024. It was mounted on the ISS using the Canadarm2 robotic arm on November 9, 2025.

Revolutionising Solar Observation

According to the report by NASA, the unique design of CODEX consists of an occulting disk the size of a tennis ball held by three arms made up of metal. It allows it to block the intense sunlight when imaging the faint corona. The first images were revealed on June 10, 2025, at the time of the American Astronomical Society’s meeting in Alaska. These comprised pictures of coronal streamers and footage of the temperature fluctuations in the outer corona over many days. This offers a fresh perspective on solar dynamics.

Measuring Solar Wind Like Never Before

CODEX is unlike the previous coronagraphs as it is the first to measure both the speed and temperature of the solar wind. There is a constant flow of superhot particles from the Sun. With the help of four narrowband filters, in which two are used for determining the temperature and two for speed, astronomers compare brightness to decode these properties, which helps in solving the mystery of how the solar wind reaches 1.8 million degrees Fahrenheit.

Tackling the Solar Weather Challenge

To know the solar wind, it is crucial to predict the geomagnetic storms triggered by the coronal holes. Shortly, the storms observed on June 13, 2025 and June 25, 2025, caused auroras because of these events. After refining the analysis of solar wind, CODEX can help in mitigating and forecasting such kind of disturbances.

A Timely Launch Amid Solar Peak

NASA’s CODEX started operations at a suitable moment, just as the current solar maximum comes to its end. As the magnetic field of the Sun shifts during the solar battle zone, CODEX is ready to catch the critical data that can change our understanding of the weather in space.

Continue Reading

Science

Rocket Lab Sets Record with ‘Symphony in the Stars’ Launch for Confidential Client

Published

4 hours ago

on

July 2, 2025

By

Rocket Lab Sets Record with 'Symphony in the Stars' Launch for Confidential Client

Rocket Lab has launched the mysterious satellite on Saturday, June 28, 2025, making another milestone, as it is the first ever record of their missions. At 12:38 p.m. IST, the Electron rocket lifted from Launch Complex 1 in Mahia. The mission is known as “Symphony in the Stars,” and carried a single spacecraft above 650 kilometres above the Earth’s orbit. This satellite was deployed for a confidential commercial client, and the details are still not revealed. However, Rocket Lab has made a record by doing so.

Confidential Launch, Yet Revealed

As reported by Rocket Launch, it was the 68th Electron launch of Rocket Lab overall and the tenth mission of 2025. Even after its confidentiality, it was confirmed that it had successfully launched into space. Rocket Lab shared its news on social media regarding Mission Success and confirmed payload deployment. They further wrote, “Music to our ears for “Symphony in the stars.” It was one of the two missions dedicated to the same client, with the second launch to happen later in 2025.

This launch went through 48 hours after the “Get the Haw Outta Here mission.” This set a new record for the company. This different and every achievement highlights the reliability and ability of Electron Rocket Lab to offer responsive and repeatable access to space. It is a significant milestone, especially for the demand for fast satellite deployment continuity to arise.

Rocket Launch’s Occupied Month

It was a busy month for Rocket Launch as it went through the completion of four missions alone. Further, in the queue, after “Symphony in the Stars,” they launched “Full Stream Ahead,” then “The Mountain God Guards,” and “Get The Hawk Outta Here.” Every mission has supported commercial satellite operators, which demonstrates the versatility of Electron in rapid deployment schedules and handling.

Continue Reading

Trending