In sixth generation (6G) wireless communications, hybrid systems that can
The hybrid transmitter is realized opticallyprogrammable time-varying metasurface, which is created by heterogeneously integrating a high-speed and linear photoelectric detection circuit into a reflective programmable structure. The profile of the entire platform is about 2 mm.
With this hybrid integration strategyThe metasurface's microwave reflectance spectrum can be modulated by light intensity at high speed. This, as scientists note, ensures direct conversion and transmission of a light signal into a microwave signal.
Image: Xin Ge Zhang et al., Light Science & Application
The metasurface transmitter is capable of directlyconvert a light signal into the microwave region without using frequency downconversion. In addition, as the authors of the work note, the metasurface converts a single light signal into two microwave signals, using the dispersion characteristics of the metasurface.
To illustrate the operation of the transmitter onBased on the metasurface, the researchers have assembled a hybrid wireless communication system that allows two-channel data transmission over a light-microwave link. Testing has shown that such a system can transmit and receive two different videos simultaneously and independently.
Image: Xin Ge Zhang et al., Light Science & Application
“The presented technology is capable of simultaneouslyrealize visible light communication and microwave communication, which can be used for some typical applications where two different communication lines are required. Thus, this technology creates a platform for future 6G multi-domain integrated and full-spectrum wireless communications,” the scientists said.
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