Japanese scientists have developed THz wireless communication technology 20 times faster than WiFi

While we are still lamenting that the next generation of 802.11n Wi-Fi is so fast, Japanese scientists have begun to study the key technologies of the next generation of wireless networks. They recently broke the world record for Wi-Fi wireless transmission speed, with a transfer rate of 20 times higher than the current Wi-Fi transmission speed.

By using a 1mm-cubic-meter device as a resonant diode, scientists increase the current at a lower voltage, and then adjust the current to make the resonant diode resonate, finally, high-frequency electromagnetic signals are emitted. The electromagnetic signal is located in the frequency band between GHz and 3 THz. scientists call it the T-ray frequency band. The high-frequency and high-speed problem is easy to understand-the high-frequency can carry more data in the same cycle, but the design difficulty for RF hardware will increase exponentially.

According to developers, the results of the current device test are already amazing: the transmission speed using the THz wireless communication technology can reach 3 Gb/s, with a frequency of up to 542 GHz, this is nearly 20 times faster than normal Wi-Fi transmission, enabling file transmission within dozens of kilometers. The researchers also said that in the future this technology can achieve at least 100 Gbit/s transmission speed, but it is only out of the conceptual research phase, the real commercialization is still far away.