Micro-Electro-Mechanical Systems (MEMS) are becoming an integral
part of our lives through a wide range of applications, including
MEMS accelerators for air bag deployment in vehicles, micromirrors
in projection devices, and various sensors for chemical/biological
applications. MEMS are a key aspect of everincreasing significance
in a myriad of commercial and military applications. Because of
this importance, this thesis utilizes MEMS devices that can deploy
and retract an antenna suitably sized for placement on an insect or
microrobot for communication purposes. A target monopole antenna
with a length of 1 mm was used as a test metric. From this
requirement, several MEMS designs using scratch drives and thermal
actuators as the basis for powering the motor were developed. Some
of the fabricated and tested designs included a gear with side
flaps that flip up perpendicular to the substrate; gears that push
an antenna beam off the edge of the substrate; and an antenna beam
that is moved upwards such that it stands perpendicular to the
substrate. These designs had the highest likelihood of success.
Other designs included an array of micro gears and guiding beams, a
large wheel powered by scratch drives, and a gear with the pawl
requiring assembly. For these designs to be successful, several
basic modifications would be necessary. The antenna beam that moves
into a position perpendicular to the substrate was successfully
self-assembled.
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