Keysight Technologies, Inc. (NYSE: KEYS), in collaboration with National Physical Laboratory (NPL) and the University of Surrey, has made the first 6G connection at speeds greater than 100 gigabits per second (Gbps) over sub-terahertz (THz) frequencies in the U.K.
Future 6G use cases, such as augmented reality and autonomous vehicles, will require data throughput speeds from 100 Gbps to 1 terabit per second (Tbps). To achieve the extreme data speeds and low latencies required by these revolutionary use cases, the use of sub-THz frequencies is being explored. However, operations in sub-THz frequency bands introduce signal integrity and path loss challenges that can negatively impact performance.
Keysight, NPL, and the University of Surrey established the first sub-THz high throughput 6G testbed in the U.K. to address these challenges. Funded by the U.K. government for 6G research, NPL and Surrey scientists are using the testbed to study and characterize sub-THz signal performance to generate new techniques for optimizing data paths and calibration methodologies.
Located at NPL, this new 6G testbed achieved the U.K.’s first high-speed sub-THz data link. The demonstration was made at a frequency of 300 GHz using both 32 and 64 quadrature amplitude modulation (QAM). Built on Keysight’s 6G Sub-Terahertz R&D Testbed, the testbed uses the M8194A Arbitrary Waveform Generator (AWG) combined with Virginia Diode Inc. (VDI) upconverters / downconverters to generate the signal and Keysight’s UXR0704A Infiniium multichannel high-performance 70 GHz oscilloscope to analyze the signal.