rectenna in a sentence

Examples

1. In September 1982 the Department of Communications gave the go-ahead to form a formal study group within the CRC, which studied rectenna design, leading to several patents on thin-film versions.
2. He was also generally credited with the concept that led to the development of the widely used rectenna, a device for the simultaneous capture of a microwave beam and its conversion back into direct current power.
3. A nantenna, an application of a nanophotonic resonator, is a nanoscale rectenna on the order of the optical wavelength size, which acts as an " antenna " for light, converting light into electricity.
4. For example, the 1978 NASA SPS study required a 1-km diameter transmitting antenna, and a 10 km diameter receiving rectenna, for a microwave beam at atmospheric absorption and even potential beam blockage by rain or water droplets.
5. In 1987, the Canadian Communications Research Center used such an improved rectenna to power a UAV with a wingspan of 5 meters ( 16 feet 5 inches ) and a weight of 4.5 kilograms ( 9.9 pounds ), as part of the Stationary High Altitude Relay Platform ( SHARP ) project.
6. This forces the transmitted beam to be centered precisely on the rectenna and to have a high degree of phase uniformity; if the pilot beam is lost for any reason ( if the transmitting antenna is turned away from the rectenna, for example ) the phase control value fails and the microwave power beam is automatically defocused.
7. This forces the transmitted beam to be centered precisely on the rectenna and to have a high degree of phase uniformity; if the pilot beam is lost for any reason ( if the transmitting antenna is turned away from the rectenna, for example ) the phase control value fails and the microwave power beam is automatically defocused.
8. The thinned array curse has consequences for microwave power transmission and wireless energy transfer concepts such as solar power satellites; it suggests that it is not possible to make a smaller beam and hence reduce the size of a receiver ( called a " rectenna " for microwave power beaming ) by phasing together beams from many small satellites.
9. In 1973 Peter Glaser was granted U . S . patent number 3, 781, 647 for his method of transmitting power over long distances ( e . g . from an SPS to Earth's surface ) using microwaves from a very large antenna ( up to one square kilometer ) on the satellite to a much larger one, now known as a rectenna, on the ground.
10. This assessment assumed ( optimistically ) that the antenna was a directional antenna array pointing directly at the sun; a rectenna that collects light from the whole sky, like a typical silicon solar cell does, would need the reverse-bias current to be even lower still, by orders of magnitude . ( The diode simultaneously needs a high forward-bias current, related to impedance-matching to the antenna .)