CAMBRIDGE, Mass. — Terahertz imaging, which is already familiar from airport security checkpoints, has a number of other promising applications — from explosives detection to collision avoidance in cars. Like sonar or radar, terahertz imaging produces an image by comparing measurements across an array of sensors. Those arrays have to be very dense, since the distance between sensors is proportional to wavelength.

In the latest issue of IEEE Transactions on Antennas and Propagation, researchers in MIT’s Research Laboratory for Electronics describe a new technique that could reduce the number of sensors required for terahertz or millimeter-wave … Read More → "Terahertz Imaging on the Cheap"

Historically, reference oscillators used to clock a phase lock loop (PLL) circuit or provide a reference signal to any timing related circuit have predominantly utilized quartz crystals as the core resonators. The degree of difficulty associated with reducing the form factor of these devices, while controlling costs has been challenging. Furthermore, for wider temperature range solutions requiring tighter stabilities, crystal oscillators still tend to cost more than what the market is willing to bear. The newest generation of MEMS oscillators effectively addresses both challenges.

Microelectromechanical System (MEMS) based devices were first manufactured in the mid-1960s. Since … Read More → "Abracon Announces Relaunch of Its MEMS Oscillators Series"