An improved method and device for the reduction of aerodynamic drag and for improved performance of vehicles by increasing the pressure on the base of the trailing vehicle or vehicle component by controlling the boundary layer as it exists the vehicle trailing edge. The process receives an OFDM signal received from at least one antenna. A second pulse generator circuit may be configured to generate a second pulse signal that periodically transitions at an adjustable delay with respect to the periodic reference signal. Additionally, the end closure may include various safety features, such as a safety fold. The portion of the rounded oxide layer within the gate area is removed and a conformal oxide layer is formed over a part of the structure.