The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A Class EF2 DC/AC inverter and a Class EF2 AC/DC rectifier are presented for a 25 W inductive Wireless Power Transfer (WPT) system operating at a frequency of 27.12 MHz. Class EF2 inverters and rectifiers are similar in construction to Class E circuits, but they contain an additional series LC circuit connected across the switch that is tuned to resonate at the second harmonic of the switching frequency...
This paper presents experimental results of energy harvesters working from ambient RF sources and an efficient inductive power transfer (IPT) system. A city-wide RF spectral survey was undertaken outside all of the 270 London Underground stations. Results from this unique survey demonstrate that DTV, GSM900, GSM1800 and 3G are the highest contributors. As a result, single and multiband rectennas were...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.