Parallel plate VLF Mechanical Antenna

Darpa proposed a low-frequency (LF) transmitter operates by mechanically moving bound static charge. However, the bounding charge has a low carrier density and the existing high speed rotating technology limits the operate frequency. This paper introduces a parallel plate design to increase the density of charge density, by using mechanical amplification. The maximum displacement generated by the piezoelectric ceramic can be amplified. And the operation frequency can be extended to up to 100KHZ which covers most of the marine low frequency communication requirement.