Key Takeaways
1. The trial achieved a record data speed of 280 Gbps in the 300 GHz band, showcasing the potential of sub-terahertz spectrum for future technologies.
2. Keysight’s Vector Component Analyzer and advanced N524XB series PNA-X Microwave Network Analyzers played a crucial role in enhancing signal quality through digital predistortion.
3. This achievement surpassed the previous record of 240 Gbps set by Osaka University, reaching speeds 28 times faster than the theoretical limit of 5G.
4. The milestone will be presented at the International Microwave Symposium (IMS) 2025 in San Francisco, CA.
5. While 6G technology is still a few years away, consumers currently rely on 5G devices, with the Samsung Galaxy S25 Ultra being a notable option.
The recent trial, which took place in the 300 GHz band, marks a significant advancement in demonstrating that the sub-terahertz spectrum can provide the extremely high speeds necessary for future technologies such as real-time holographic communication, communication for autonomous vehicles, and AI on a city-wide scale.
Unprecedented Speed Achieved
This remarkable data speed was achieved through the use of an exceptionally clean signal. Keysight’s Vector Component Analyzer was crucial in this process — utilizing the advanced N524XB series PNA-X Microwave Network Analyzers, it allowed for spectral digital predistortion (DPD) to reduce distortion and enhance signal quality, resulting in a record-setting 280 Gbps. The experiment employed NTT’s indium phosphide-based J-band power amplifier, reaching 35 GBaud with 256-QAM modulation at 0 dBm output and +9.1 dBm saturated power.
Record Broken
The trial surpassed the previous record of 240 Gbps set by Osaka University’s team, headed by Professor Tadao Nagatsuma, in 2024. This achievement takes wireless speeds significantly beyond the theoretical 10 Gbps limit of 5G, achieving speeds that are 28 times faster. To put it in perspective, 280 Gbps can download a 50 GB file in around 1.4 seconds, which is comparable to a 2-hour Blu-Ray quality 4K movie.
Future Presentations
This milestone will be showcased at the International Microwave Symposium (IMS) 2025, scheduled for June 19, 2025, at the Moscone Center in San Francisco, CA, USA.
While consumer devices featuring 6G technology are still 3 to 4 years away, the world will have to rely on 5G devices for the time being. The Samsung Galaxy S25 Ultra, currently priced at $1,119 on Amazon.com, stands out as one of the top 5G-enabled options available on the market.
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