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 fast characterization method to determine the optimal second harmonic injection required at the input for enhancing the efficiency of RF power amplifiers is demonstrated. The second harmonic is injected with a small frequency offset to automatically sweep the phase during one modulation cycle. The power amplifier performance figures of merit are characterized over the second-harmonic amplitude and...
With the explosive growth of the smartphone and tablet markets, wide bandwidth voice and data communication have become ubiquitous. Users expect to use their wireless portable phone/computing devices at any place and at any time. Furthermore, with the today?s economy of scale, yesterday?s high-performance devices are today?s entry-model devices.
In this article, we have reviewed various advanced broadband and pulsed measurement techniques which have been developed for sampler-based NVNAs. We have seen that the RF modulation capability of sampler based NVNAs was not limited by the IF bandwidth of its receiver. Two methods for pulsed-RF, pulsed-bias measurements were also presented. The method based on the concept of multiple recordings enables...
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.