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Power dissipation minimization in RF front ends

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4 Author(s)
P. G. M. Baltus ; Department of Electrical Engineering, Eindhoven University of Technology (TU/e), The Netherlands ; Yan Wu ; J. H. C. van den Heuvel ; J. P. M. G. Linnartz

In mobile and portable wireless devices, it is important to have low power dissipation so as to maximize battery life. As the overall power dissipation of a device is dominated by the radio frequency (RF) front end rather than the digital circuit, low-power RF front end design has become a very hot topic in both research and implementation. In this paper, we propose a design method to minimize the power dissipation of a RF front end. Specifically, given the overall specifications of gain, linearity and noise figure of a front end, we derive the optimal specification for each building block of the RF front end such that the overall power dissipation is minimized. By using a specific example of a front end consisting of a couple of cascaded circuit blocks using 90nm CMOS technology, we demonstrate that significant reduction in power dissipation can be achieved using the proposed design method.

Published in:

Personal, Indoor and Mobile Radio Communications Workshops (PIMRC Workshops), 2010 IEEE 21st International Symposium on

Date of Conference:

26-30 Sept. 2010