2014/06/30 ELASTx Stretches Potential for Future Communications Technologies with Fully Integrated All-Silicon “System on a Chip” Transmitter Many existing compact, high-data-rate millimeter-wave wireless communications systems use integrated circuits (ICs) made with gallium arsenide (GaAs) or gallium nitride (GaN). These circuits provide high power and efficiency in small packages but are costly to produce and difficult to integrate with silicon electronics that provide most other radio functions. Silicon ICs are less expensive to manufacture in volume than those with gallium compounds but until now have not demonstrated sufficient power output and efficiency at millimeter-wave frequencies used for communications and many other military applications, such as radar and guidance systems.
2014/06/16 Defense Sciences Office: at the Edge of Science and National Security Scientists and engineers in DARPA’s Defense Sciences Office (DSO) promote and exploit new discoveries across the frontiers of physics, chemistry, and mathematics to identify and accelerate potentially game-changing technologies for U.S. national security. After recently spinning off biological technologies into a new office, DSO’s investment portfolio, which continues to create new materials and explore the boundaries of physical phenomena, is expanding to include novel approaches to understanding, predicting, designing, and developing engineered complex systems.
2014/06/19 Advanced CLARITY Method Offers Faster, Better Views of Entire Brain For decades, researchers’ understanding of brain structure and function has remained fragmented due to difficulties integrating observations and insights at the levels of individual brain cells, neural circuits and systems-level information processing. Now a new research protocol promises to help overcome this barrier by allowing scientists to visualize the brain across multiple scales. As described in a newly published scientific report, DARPA-funded performers have developed a new protocol that incorporates two major technological advances that enable more efficient application of the CLARITY method to study brain tissue.
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