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X.L. Sun, S.W. Cheung and T.I. Yuk, University of Hong Kong, Hong Kong, China

Articles

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Design of a Fifth-order Analog Predistorter for Base Station HPA of Cellular Mobile Systems

This article presents the design of a fifth-order analog predistorter for use in base station high power amplifiers (HPA). The predistorter employs two intermodulation (IM) signal generators with identical configuration, to individually generate the th...
August 8, 2011
X.L. Sun, S.W. Cheung and T.I. Yuk, University of Hong Kong, Hong Kong, China
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The high power amplifier is an important building block in wireless communication systems, but is inherently nonlinear. The nonlinearity results in intermodulation of the input signals, causing intermodulation distortion products at the output of the HPA and hence adjacent channel interference. 1 Thus, linearization methods are usually employed in...
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