Publication of this article in an open access journal was funded by the Portland State University Library’s Open Access Fund.
Power amplifiers -- Design and construction, Orthogonal frequency division multiplexing, Wireless communication systems -- Technological innovation, Resource allocation -- Mathematical models, 5G mobile communication systems
Dual-band RF amplifiers play increasingly important roles in next-generation mobile communication systems including 5G, and the out-of-band intermodulation products are often not negligible since they generate interference to adjacent channels. In this article, following our previous modeling of cross-modulation for amplified dual-band signals, an analytical expression of out-of-band intermodulation for dual-band orthogonal frequency-division multiplexing signals is derived using the third-order intercept points IP3. The experimental measurement results validate the proposed analytical expression.
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Yang, X.; Yan, S.; Li, X.; Wu, Q.; Li, F. Spectrum Modeling of Out-of-Band Intermodulation for Dual-Band RF Amplifiers in OFDM Modulation. Electronics 2020, 9, 691.