Spectral regrowth and waveform distortion caused by wideband signals input into active phased array antenna systems is the problem this paper addresses. The paper's unique contribution is the development of the impedance-dependent memory polynomial model, capable of solving nonlinear predistortion model parameters for a solid-state high power amplifier with varying load impedance resulting from active electronic beamsteering. Wideband load impedance mismatched tests demonstrate the effectiveness of this technique on a 2.7 GHz, 8 W amplifier.
Impedance-Dependent Wideband Digital Predistortion of Solid-State Radar Amplifiers
IEEE Transactions on Aerospace and Electronic Systems ; 53 , 5 ; 2290-2303
2017-10-01
1775271 byte
Article (Journal)
Electronic Resource
English
British Library Conference Proceedings | 2013
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