Physorg February 8, 2018 A team of researchers in the US (UT Austin, City University of New York) has shown that a non-magnetic device free of an external power source can dramatically break transmission symmetry and realize efficient broadband isolation. Using two judiciously designed nonlinear resonators connected through a delay line, they showed that this is the minimal configuration for enabling low-loss one-way transmission over a broad bandwidth. The combined components, which were printed on a circuit board, formed a highly effective, fully passive isolator that provides excellent signal integrity… read more. TECHNICAL ARTICLE
Tag Archives: Communications technology
Ocean of Things Aims to Expand Maritime Awareness across Open Seas
Source: DARPA, December 6, 2017 DARPA’s Ocean of Things program seeks to enable persistent maritime situational awareness over large ocean areas by deploying thousands of small, low-cost floats that could form a distributed sensor network. Each smart float would contain a suite of commercially available sensors to collect environmental data—such as ocean temperature, sea state, and location—as well as activity data about commercial vessels, aircraft, and even maritime mammals moving through the area. The floats would transmit data periodically via satellite to a cloud network for storage and real-time analysis. The technical challenge lies in two key areas: float development […]