9 - Wireless MEMS for space applications

Abstract

For most wireless devices, the increase of capability with concurrent reduction in size has also required for mechanical components a reduction in size, a feat accomplished in part by micro-electromechanical systems (MEMS) technology. The same is true for spacecraft applications, with the exception of some large satellites where power and weight reduction achievable by MEMS devices is minimal and does not validate some of the shortcomings of the reduction in size. But in general, with the high launch cost, and also the goal to launch constellations of small satellites, MEMS is one technology enabling satellites to be made smaller without a reduction in capability. One reason for the advancement of MEMS in the commercial sector, of course, is quantity; there is the opportunity to manufacture mechanical components identically and at high volume. However, spacecraft and instrument payloads are not a quantity commodity, and for the near future small quantities and custom builds will be the norm. With the growth in small constellations, we may be seeing a change in the future.