Article
Volterra Behavioral Model for Wideband RF Amplifiers
Author/s | Crespo Cadenas, Carlos
Reina Tosina, Luis Javier Madero Ayora, María José |
Department | Universidad de Sevilla. Departamento de Teoría de la Señal y Comunicaciones |
Publication Date | 2007-03 |
Deposit Date | 2022-03-07 |
Published in |
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Abstract | This paper proposes a behavioral modeling approach for the description of nonlinearities in wideband wireless communication circuits with memory. The model is formally derived exploiting the dependence on frequency of the ... This paper proposes a behavioral modeling approach for the description of nonlinearities in wideband wireless communication circuits with memory. The model is formally derived exploiting the dependence on frequency of the amplifier nonlinear transfer functions and reduce the number of parameters in a general Volterra-based behavioral model. To validate the proposed approach, a commercial amplifier at 915 MHz, exhibiting nonlinear memory effects, has been widely characterized using different stimuli, including two tones, quadrature phase-shift keying wideband code division multiple access, and 16-quadrature amplitude modulation signals with rectangular and root-raised cosine conforming pulses. The theoretical results have been compared with experimental data demonstrating that the model performance is comparable to the well-established memory polynomial model. Calculated and measured baseband waveforms, signal constellation, spectral regrowth and adjacent channel power ratio are tightly coincident in all cases, emphasizing the relevance of the proposed model |
Project ID. | TEC2004-06451-C05-03 |
Citation | Crespo-Cadenas, C., Reina-Tosina, L.J. y Madero-Ayora, M.J. (2007). Volterra Behavioral Model for Wideband RF Amplifiers. IEEE Transactions on Microwave Theory and Techniques, 55 (3), 449-457. |
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