The 240GHz band is a frequency range over 100 times wider than that used by mobile devices today (0.8-2GHz).
Story content courtesy of Fujitsu, Japan
Fujitsu and Fujitsu Laboratories have developed a technology for multistage amplifiers that increases amplification ratios while suppressing an amplifier’s oscillator effect, and a technology that efficiently transmits the amplifier’s output signal to the next stage. The result is that the receiver chip’s sensitivity is increased roughly tenfold, making possible the reception of large data volumes by smartphones or other mobile devices using a compact antenna.
A portion of these research results were obtained through “R&D Program on Multi-tens Gigabit Wireless Communication Technology at Subterahertz Frequencies,” a research program commissioned by Japan’s Ministry of Internal Affairs and Communications as part of its “Research and Development Project for Expansion of Radio Spectrum Resources.”
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