Compact Electrically Small Antenna for Smart Watch Application

With the rise in popularity of wearable gadgets and the birth of the internet of things, new challenges are presented to antenna engineers with respect to the design space available. To this end, a compact, electrically small inverted-F antenna is designed for use in a smart watch. The design is carried out in-vitro, using numerical modelling techniques, and is benchmarked against a traditional planar inverted-F antenna from literature. The novel design presented reduces the overall size of the antenna by a factor of 3.5. It has a gain of -12.7 dB, and a half-power fractional bandwidth of 32%, and is shown to operate well within the specific absorption rate regulatory limits when operated at 25 mW.