This can be for any year.

Layered Ferroics as Superior Microwave Dielectrics

Schematic and cross-sectional transmission electron micrograph of Srn+1TinO3n+1 thin films grown by molecular beam epitaxy. The “bricks” are RP phases and the “mortar” are additional SrO layers that are believed to accommodate non-stoichiometry and lead to lower dielectric losses.

Penn State MRSEC IRG1-TEAM (Strain-enabled multiferroics), in close collaboration with Cornell MRSEC, U Maryland, NIST and others, has designed and demonstrated the world’s best tunable microwave dielectric to date operating with the highest reported Figure of Merit up to 125GHz. This could result in a new generation of superior electronically tunable microwave filters, antennas, and phase shifters for improved wireless communications using Cellphones and other devices.