RF Energy Harvesting Antennas

Abstract

This thesis presents a study for RF energy harvesting antennas. The RF energy accumulated from air-space is very limited, at less than 1µW. However, conducting several experiments by using highly efficient receivers could accumulate large amount of energy especially there are millions of RF wireless devices in the surrounding environment as mobile phones, Wi-Fi, WiMax and Bluetooth. Frequency selection is an important consideration in RF Energy Harvesting (RFEH) system. These might be more useful to outdoor rather than indoor locations for harvesting applications. Generally, in the modern building environment, GSM mobile phones signals are prevalent, and propagate well both indoor and out door of buildings. Other promising bands include Wi-Fi hotspots (2.4GHz sources), as well as cellular (850MHz, 900MHz bands), personal communications services PCS (1900MHz band) and WiMax (2.3/3.5 GHz) network transmitters. The thesis is composed of five chapters together with the table of contents, the lists of figures and tables and the references used in thesis.