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.
This paper, proposes a new architecture to reduce the silicon area of the Cartesian feedback (CFB) used to linearize a power amplifier in WCDMA communication standard. The first stage of the previous version consists of two CORDIC structures in vector mode for the phase computation following by a subtractor. Here, we propose to merge these two CORDIC structures to obtain directly the phase difference...
In this paper, a smart adaptive RF power amplifier linearization technique is presented. We invest a Mixed-Signal Cartesian Feedback Loop design to train an embedded Random Access Memory in order to overcome digital-stage latency and bandwidth limitation. The new design consists of a traditional analog stage including filters, I/Q modulator, feedback I/Q demodulator and an improved digital stage which...
In this paper, an improved digital-stage design of a mixed-signal Cartesian Feedback loop for a zero-IF WCDMA transmitter is presented. The transmitter architecture consists of an analog stage including filters, I/Q modulator, feedback I/Q demodulator and a digital stage which adjusts the phase misalignment around the loop. We propose an optimized CORDIC design for the digital part in order to improve...
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.