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.
Thermal issues pose significant challenges for today's RF power amplifier designs. Recently, layout-based electro-thermal simulation tools have become widely available across the industry. While these tools are most commonly used for device-level reliability and lifetime verification, electro-thermal simulation can also enable engineers to gain new insight into the performance effects that are brought...
Multi frequency coupling is widely used in plasma processing technology in order to improve controllability of plasma chamber. This paper researches about influence of multi-frequency operation of parallel connected high efficiency switching power amplifier, class D amplifiers. In the analysis, it is seen that variation in dc supply voltage of one amplifier leg does not influence to output waveform...
We investigated transmit performance of an 8-channel TX/RX multi-channel loop-based RF coil, with and without decoupling sub-circuits, excited by a single power amplifier followed by a power splitter and phase shifter. We compared TX simulation results for two different planar loop shapes, with a range of different aspect ratios. Transmit performance and transmit efficiency for brain excitation vary...
We present a hybrid analysis technique based on a decomposition approach to evaluate electromagnetic interference (EMI) effects on RF active and passive circuit components enclosed within multilayer cavities exposed to external electromagnetic waves. The adopted decomposition concept separates the analysis of the passive printed circuits and shielding cavity from the nonlinear components. The method...
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.