rectenna उदाहरण वाक्य

A rectenna is a circuit containing an antenna and a diode, which turns electromagnetic waves into direct current electricity.
A microwave beam could be used to send power to a rectenna, for " microwave electric propulsion ".
In 1964 William C . Brown demonstrated a miniature helicopter equipped with a combination antenna and rectifier device called a rectenna.
Powered by a rectenna, it could fly at 13 miles ( 21 km ) altitude and stay aloft for months.
The NASA rectenna was made of a thin plastic film, with dipole antennas and receiving circuits embedded in its surface.

A commonly proposed approach to ensuring fail-safe beam targeting is to use a retrodirective phased array antenna / rectenna.
As of 2012, only a few optical rectenna devices have been built, demonstrating only that energy conversion is possible.
Baratunde Cola, a professor at Georgia Institute of Technology, led the team that developed this optical rectenna using carbon nanotubes.
The rectenna on the aircraft was embedded in the wings and tail surfaces, eliminating the need for the separate antenna body.
The most apparent advantage optical rectennas have over semiconductor photovoltaics is that rectenna arrays can be designed to absorb any frequency of light.