Researchers have developed a new type of antenna that can provide 6G wireless communication. In this antenna, by using space-time coding, it is possible to change the direction, frequency and amplitude of electromagnetic waves. 6G wireless communication can also be achieved using this antenna.
According to Magentabyte, researchers are developing a new antenna with space-time coding technology. Professor John Chi-Ho from the City University of Hong Kong along with a research team built this innovative antenna.
Advantages of 6G wireless communication antenna
The first advantage of this antenna is to control the direction, frequency and intensity of the signal beam.
This antenna in 6G technology can be used to measure the sharing center and analyze information in the integration of this communication.
In current antennas, it is not possible to change some characteristics or antenna structure. But the space-time coding in the new antenna can help to change the direction, frequency and amplitude of electromagnetic waves.
This feature turns the desired antenna into a surface antenna without sideband. In this way, users will get a lot of flexibility.
In this feature, it uses metasurfaces, which are made of tiny metaatoms. The surface antenna has the ability to manipulate complex electromagnetic waves in the space and frequency domain with the help of software control. In this way, a suitable beam with a desired radiation pattern will be produced.
A successful combination of two developments
The invention of the new 6G antenna is a successful collaboration of space-time coding methods and AM leaky wave antennas.
In 2020, the concept of AM leaky wave antennas was first proposed by Dr. Wu Gang at CityU. This concept provides an analytical method to create antennas with the necessary emission patterns for different applications by only changing the structure and shape of the antennas.
Dr. Junyan Dai, a leading expert in space-time coding and digital metasurfaces for reconfiguring antenna performance, joined the research group of Prof. Cui Tijun and Cheng Qiang from the Nanjing Campus of Southeast University. At the same time, Dr. Dai came to CityU, which is known for many research studies and discoveries, and collaborated with Prof. Chan in the School of Knowledge Innovation Technology (SKIT).
His skill gave a new and exciting dimension to their research. These leaky AM antennas, once built, exhibit fixed radiation characteristics that can now be dynamically changed thanks to his innovative work.
Professor Chan and his team unveiled a revolutionary new design that uses waveguides to control electromagnetic waves in metasurfaces. A waveguide is a structure that guides and transmits waves such as electromagnetic waves or sound waves.
This advancement eliminated unwanted harmonic frequencies, known as “spectrum pollution,” while increasing the antenna’s directivity beam for secure communication. By taking advantage of internal wall reflection, scientists have provided possibilities in wireless transmission that were not possible before.
Important role of STC and AM technologies in ISAC for 6G wireless communication
With both of these technologies, scientists were able to achieve select radiation properties. These features can be controlled by the on-off duration and sequence on the switches on the antenna via STC.
Professor Chan’s amazing innovation harnesses the power of the radar-like supersurface STC antenna, allowing it to focus its energy on a single point with an adjustable or fixed focal length.
This feature can be used in ISAC for 6G wireless communication not only to create 3D holograms that allow users to talk face-to-face with their mobile phones, but also to provide superior eavesdropping protection over traditional transmitter architectures. to be used.