Special considerations for specifying oscillator components with resonators on the micro/nanoscale

Some micro/nanoscale resonator oscillators´ phase noise and temperature stability performance is inferior to traditional quartz crystal oscillators. But, does that matter? In other areas, micro/nanoscale resonator oscillators have demonstrated one or two orders of magnitude better performance. Measured devices have demonstrated frequency stability under vibration and a resiliency to shock not possible in traditional-sized quartz. Certain applications may have component specifications which can be derived differently by keeping in mind how a micro/nanoscale component will respond differently under these environmental conditions. A comparison of most important requirements for oscillator components in communication, navigation, and radar radio applications is presented. Areas of specification relief are identified related to measured performance of micro/nanoscale oscillators. Rockwell Collins has measured developmental and Commercial-off-the-shelf (COTS) Microelectromechanical systems (MEMS) / Nanoelectromechanical systems (NEMS) resonator oscillators as part of the DARPA Mesodynamics Architectures (Meso) program. This includes piezoelectric, piezoresistive, and electrostatic devices. Rockwell Collins has used these devices to demonstrate improved performance to existing radio hardware.