Sweden develops new technology: WiFi transmits 2.5TB of data per second
Two groups of researchers are developing new data transmission technologies that use twisted-wound beams and radio waves to dramatically increase data throughput. The radio waves transmitted by the antenna are in the form of a screw cone, like a vortex, each rotating at different angles, allowing the carrying of independent signals. Beijing time on July 2 news, according to foreign media reports, scientists at the Swedish Institute of Space Physics developed a new data transmission technology that enables the WiFi network to transmit data equivalent to 66 DVDs per second. The way they take is to use spiral radio waves that can transmit multiple signals in the same bandwidth. The bandwidth of the radio is limited and it is also an expensive resource. U.S. telecommunications giants Verizon and AT&T have paid up to $3.6 billion and $1.6 billion for the use of radio bands. In the United Kingdom, the amount of the radio band contract signed between the government and major telecommunication operators also reached millions of dollars. Researcher Fabrizio Tamberini of the Institute of Space Physics said that by twisting radio waves, multiple signals can be transmitted in the same frequency band, allowing a given fixed bandwidth to have a nearly unlimited number of channels. When radio data is transmitted in this way, the radio waves transmitted by the antenna are in the shape of a screw cone, which looks like a vortex. Each rotation angle is different, allowing independent signals to be carried. In Venice, scientists at the Institute of Space Physics conducted tests on the systems they developed, transmitting two sets of signals to different receivers, one set spinning, and the other set spinning. Both sets of signals have a frequency of 2.4 GHz, which is the same as most modern WiFi routers. The transmission distance is 442 meters. The team pointed out that the signal strength of the rotation is slightly weaker than the normal signal, but this is not a big problem. In the New Journal of Physics, scientists published their findings. Researchers at the University of Southern California collaborated with NASA's Jet Propulsion Laboratory and Tel Aviv University to conduct similar experiments. The team used two beams, one set of four, each with a different rotation angle. The 8 beams are entangled, transmitted to a receiver and then decomposed. In this way, 2.5TB of data can be transmitted per second. The transmission distance of this experiment is only 1 meter. Professor Alex Werner, the head of the research team, stated that their next step is to use fiber optic cable to transmit this signal. He said: “Turbulence in the atmosphere is one of the challenges we face. If it is to transmit large amounts of data within a distance of less than 1 km, this is undoubtedly a very attractive way. Of course, this method can also be used for satellites. There is no turbulence in space," Juan Torres of the Barcelona Photonics Institute said: "These studies have opened a new chapter in the history of telecommunications. They have further explored Ethernet. The potential of OAM technology has greatly improved the data transmission capabilities." (Qiu Ling) Tool carts are favorable due to lower price and large storage space. Big power tools can be stored on shelves. Drawer Tool Cart,Service Tool Cart,Utility Tool Cart,Drawer Utility Cart Changzhou Xingsheng Tianhe Electric Appliance Co., Ltd , https://www.roller-tool-cabinet.com
