Title :
The Research of the Micro-transmitter Feed-Forward Power Amplifier Based on the ADS
Author_Institution :
Coll. of Inf. & Commun. Eng., North Univ. of China, Taiyuan, China
Abstract :
The feed-forward power amplifier is a current, a high linearity and high-power amplifier in communication systems. By analyzing the principle of the feed-forward power amplifier, the feedforward amplifiers was designed based on ADS. The results show that reasonable setting parameters can improve the feed-forward amplifier linearity; the amplifier efficiency will be improved when the main amplifier work on 1 dB compression point; the distortion characteristics is improve more (47 dBm output improvements over 60 dB) when output power is closed to 47 dBm.
Keywords :
electrical engineering computing; feedforward amplifiers; power amplifiers; radio transmitters; ADS simulation; advanced design system; amplifier linearity; high-power amplifier; microtransmitter feedforward power amplifier; Attenuators; Couplings; Delay; Feedforward systems; High power amplifiers; Linearity; Microwave amplifiers; Nonlinear distortion; Power amplifiers; Power generation; Advanced Design System (ADS) simulation; Feed-forwards; distortion signal; linearity; microwave power amplifier;
Conference_Titel :
Information Technology and Applications, 2009. IFITA '09. International Forum on
Conference_Location :
Chengdu
Print_ISBN :
978-0-7695-3600-2
DOI :
10.1109/IFITA.2009.263
