Samenvatting
Abstract—In the framework of wireless power transmission
and RF energy harvesting, the main objective is to design a harvester
that collects ambient Radio Frequencies (RF) broadcasted
from DTV (Digital TV) stations. This paper summarizes the main
challenges experienced, when designing such a harvester. The
distance and the free space path loss between the transmitting
station and the harvesting location are calculated. Using Friis
equation, the available power at the harvesting location is
predicted. A novel broad-band Yagi-Uda antenna that covers the
DTV broadcasting frequencies (470 MHz - 810 MHz) is presented.
The antenna design is based on integrating a wide-band strip
dipole into a Yagi-Uda antenna. Moreover, The rectifier part,
which converts the harvested RF power into DC is discussed, the
simulated and measured input impedance and the output voltage
of different commercial rectifiers are shown. A voltage multiplier
is used to maximize the output voltage, and a matching network
is presented to match the impedance of the multiplier to that of
the antenna.
| Originele taal-2 | Engels |
|---|---|
| Titel | Proceedings of the 2012 Loughborough Antennas & Propagation Conference, 12-13 November 2012, Loughborough, UK |
| Plaats van productie | Loughborough - UK |
| Uitgeverij | Institute of Electrical and Electronics Engineers |
| Status | Gepubliceerd - 2012 |