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.
Recently, high performance power switching devices realize high performance power converters. High speed turn-on and turn-off however cause electromagnetic interference (EMI). EMI filters composed of inductors and capacitors are widely used to reduce EMI. Inductor is heavy and large so that it is better to reduce use of passive filters. There are several studies to reduce harmonics by modifying switching...
We describe the fabrication and characteristics of a filter with aluminum nitride thin film bulk acoustic resonators (FBAR) for the K-band. The FBAR has an air-gap beneath the resonator to acoustically isolate itself from the substrate, and is has an extremely thin film thickness to operate in the K-band. The FBAR has two structural features, a sacrificial layer to make the air-gap very thin in order...
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.