Design of Low Distortion RF Power Amplifier Using Analog Predistorter

• Main Authors: Han-ping Huang, 黃瀚平
• Other Authors: Ching-wen Hsue
• Format: Others
• Language: en_US
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/27145096922582162800

碩士 === 國立臺灣科技大學 === 電子工程系 === 100 === The advantages of analog predistorter are small size, low cost, low complexity, controllable loss, and high integration. We design both two watt and ten watt power amplifier. The two watt power amplifier is integrated with analog predistorter to improve the nonlinear distortion interface. In this thesis, we repeat the experiment to find the logical design of predistorter. The experiment result of two watt power amplifier using bias free predistorter shows the loss only 1.5 dB. The predistorter can improve output power of each carrier from 18.73 dBm to 22.48 dBm when IM3 is -30dbm. We trade loss of 1.5 dB for output power of 3.75 dB.