报告摘要：超材料是通过人工结构实现超常特性的一大类新型材料，有望成为一系列变革性技术的源头。这类材料在基本结构、性能和实现方法上与常规材料完全不同，其各自的优势和劣势也泾渭分明——常规材料源于自然，易于获得而难于设计；超材料则易于设计，但在很多情况下却难于获得。我们提出了通过超材料与常规材料融合发展兼具超材料和常规材料优势的新型功能材料的思想，拓展出三类新型材料系统。即：（1）融合自然机制、具有增强性能的超材料；（2）基于人工机制的高性能“常规材料”；（3）受超材料启发的超常自然材料。在上述思想指导下，在电磁超材料的性能增强与结构简化、常规材料功能极限的突破等方面取得若干进展。

Abstract: With more and more bandwidth readily available for the next generation of wireless applications, many intelligent products/services by leveraging the ambient radio waves unimaginable before are now possible. What impact will it bring to our lives? Many may wonder or even speculate if it is science fiction or real? In this talk, we will show that with more bandwidth, one can see many multi-paths, which can serve as hundreds of virtual sensors around us that can be readily leveraged as new degrees of freedom readily for our use (but we never realized that before!). We discovered for the first time that the time-reversal focusing spot is not a point but exhibiting a stationary power distribution of Bessel function which enabled accurate/reliable speed estimation under non-line-of-sight, severe multipath conditions, uncovering a new physical principle ideal for indoor applications. Together with the use of machine learning, a revolutionary wireless AI platform can be built to enable many IoT applications that have been dreamed for a long time but have never been possibly achieved.

Such a technology forms the core of a wireless sensing AI platform that can be applied to many device-free, non-obtrusive applications. We will show the world’s first ever centimeter-accuracy wireless indoor positioning systems that can offer indoor tracking without any costly infrastructure, home/office monitoring and security, radio human biometrics, vital signs detection, sleep monitoring, gait recognition, and fall detection, without any wearable but sorely relying on ubiquitous commodity Wi-Fi. In essence, now and in the future, it is the wireless sensing that will forever change Wi-Fi as we know it today, as well as future 5G/6G systems, allowing us to decipher our surrounding world with a new “sixth sense”. Some products/services of Origin have been deployed worldwide and will be demonstrated to illustrate how such a fundamental discovery can make the world a better place.

报告摘要：全球卫星互联网作为太空经济的核心组成部分和下一代信息网络中的变革性技术，已经成为大国竞争的战略关键。随着卫星技术的不断发展、新型应用场景不断涌现，亟需构建具备实时对地感知能力的卫星互联网反馈体系，这对现有卫星互联网的信息采集、传输和处理能力提出了新的要求和挑战。光子技术具有多维、宽带、大容量、低能耗等诸多优势，具备使能卫星信息“采传算”深度融合、互惠增强的能力，可以有效支撑卫星互联网对全球遥感信息的大容量实时感知与传输。报告介绍了对光子赋能的卫星信息“采传算”一体化所进行的一系列实践与探索，包括：利用计算光学编码，实现多维信息的降维压缩和超高速采集；提出一体化光通信架构，实现物理传输与业务内容的深度融合；探索高吞吐量光子智能计算架构，实现复值遥感图像的分类与识别。此外也对光子赋能的通感一体化网络、全时全域感知互联、海洋遥感数据追踪等未来应用做出了展望。

Abstract: The advent of 5G/6G/SATCOM and Radars/Sensors has triggered universal demand of frequency spectrums in the range of 10 GHz to sub-Terahertz. Antennas operating at such frequencies are in general classified as High frequency antennas (e.g. Millimeter-wave antennas) and have traditionally been considered for specific, low-volume applications. However in the past five years, the landscape surrounding high frequency antennas have undergone significant changes amid the growing concern of their limited applicability.

This talk attempts to discuss possible research and development strategies to dissuade this concern with specific examples.