Millimeter-wave and Terahertz Real-Time and Space Processing based on Metamaterial Technology

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Today’s exploding demand for faster, more reliable, and ubiquitous radio systems in communications, instrumentation, radar, imaging and sensors poses unprecedented challenges in microwave (mw), millimeter-wave (mmw) and terahertz (THz) engineering. Recently, the predominant trend has been to place increasing emphasis on digital signal processing (DSP). However, while offering device compactness and processing flexibility, DSP suffers from intrinsic drawbacks, such as limited speed, high-cost analog-digital conversion, high power consumption, and poor performance at high frequencies, leading to serious technological bottlenecks. For instance, in wireless communications, a 1,000-fold increase in data capacity demand over the 5 next years has been predicted, and it is widely recognized by industrial experts that current technologies will be largely insufficient to meet such requirements! Therefore, novel paradigms and disruptive technological solutions are urgently needed.