6G "ultra-broadband" chips are 10 times faster than 5G.

(Dan Tri Newspaper) - Engineers from China and the US have demonstrated a 6G chip that can deliver internet speeds of over 100 Gbps, 10 times faster than the theoretical speed and 500 times faster than the average speed of 5G networks.

Schematic diagram of the new chip (image: Tao et al., Nature, 2025).

Although 6G communication networks are not expected to be deployed until the 2030s, the foundation for 6G will require considerable time to prepare.

We've seen some prototypes achieve this speed, but they're generally not as efficient as the new chip recently developed by scientists at Peking University, City University of Hong Kong in China, and the University of California, Santa Barbara.

First, this chip is very small, only 11 mm x 1.7 mm. But inside that tiny size is an "ultra-wideband" spanning from 0.5 GHz to 115 GHz. Covering this spectrum requires nine different radio frequency bands, so it also needs to be equipped with a wider variety of components.

Thanks to the opto-modulator that converts radio signals into optical signals, this new system has been realized. Conversely, the chip uses an optoelectronic oscillator to generate radio frequencies in the ultra-wideband.

This allows the new chip to achieve clock speeds of over 100 Gbps. For comparison, 5G technology reaches a maximum speed of 10 Gbps, but in reality, it's much slower; for example, US providers typically offer average speeds of 150 to 300 Mbps.

Although tech companies still have a lot of work to do to develop the infrastructure, 6G wireless technology is almost certain to launch within the next decade, just in time to meet our growing data needs, thanks to ultra-high definition (UHD) streaming technology and the trend of integrating AI into everything.

Source: https://dantri.com.vn/cong-nghe/chip-6g-sieu-bang-thong-rong-co-toc-do-nhanh-hon-5g-gap-10-lan-20250907234732794.htm