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A CDMA system wideband feedforward linearizer design based on an analytical model

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2 Author(s)
Coskun, A.H. ; ASELSAN Electron. Ind. Inc., Ankara, Turkey ; Demir, S.

Feedforward systems are complicated due to the presence of two nonlinear amplifiers and the requirement of amplitude, delay and phase match in two different loops. Analytical tools that characterize this complexity help the designer a lot in rapid and accurate initial optimizations, particularly for wideband applications. In this work we present a wideband feedforward linearizer design for CDMA applications, based on an analytical model and speed and accuracy aspects of the results are compared with RF simulations performed by real power amplifiers and components.

Published in:

Radio and Wireless Conference, 2003. RAWCON '03. Proceedings

Date of Conference:

10-13 Aug. 2003