Yapici,A.C.Çiflikli,C.Airframe and Powerplant Maintenance2024-07-052024-07-052009978-142443861-710.1109/EURCON.2009.51676032-s2.0-70449623237https://doi.org/10.1109/EURCON.2009.5167603https://hdl.handle.net/20.500.14411/3596This study presents a feedforward linearizer, in order to reduce the intermodulation distortion (IMD) caused by the nonlinear properties of the radio frequency (RF) power amplifier (PA) in orthogonal frequency-division multiplexing (OFDM) systems. The design procedure and validation of OFDM system and feedforward linearizer have been carried out by Agilent-ADS. In order to evaluate the performance of the feedforward linearizer, sweeping back-off power has been used. Adjacent channel power ratio (ACPR) levels versus back-off power results are investigated to evaluate the performance of the linearization technique. Efficiency improvement is figured out by investigating the power added efficiency (PAE) versus back-off power. Simulation results have been shown that ACPR improvements were acceptable for OFDM system when the PA is utilized together with feedforward linearizer. © 2009 IEEE.eninfo:eu-repo/semantics/closedAccessFeedforward linearization techniqueIntermodulation distortionOFDMRF power amplifierConference Object52560