Abstract
The nonlinear distortion in InGaP/GaAs HBT power amplifiers for long-term evolution applications is analyzed using Volterra series. The interdependence between third-order intermodulation (IM3) and harmonic load impedance suggests an alternative technique to improve PAs' linearity. The measurement results show that IM3 is suppressed by more than 6 dB, whereas other performances are not affected. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:341–344, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27286
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