Title :
MILC: Modified Implementation of the LINC Concept
Author :
Poitau, Gwénaël ; Kouki, Ammar
Author_Institution :
LACIME-Ecole de Technologie Superieure, Montreal, Que.
Abstract :
In this paper, a modified implementation of the LINC concept (MILC) is proposed. It consists of allowing a limited and controlled amplitude variation of the separated signals such that nonlinear amplifiers can still be used. Depending on the amplifiers´ gain variation of the allowed signal dynamics, a limited-range predistortion can be used. This novel architecture offers a very efficient way for amplifying high crest factor signals. Moreover, this architecture is less sensitive to branch imbalance
Keywords :
amplifiers; amplitude modulation; filtering theory; signal processing; LINC concept; MILC; controlled amplitude variation; high crest factor signals; limited-range predistortion; linear amplification; nonlinear amplifiers; nonlinear component; separated signals; Amplitude modulation; Constellation diagram; Filtering; Filters; Linearity; OFDM; Predistortion; Quadrature amplitude modulation; Quadrature phase shift keying; Signal generators;
Conference_Titel :
Microwave Symposium Digest, 2006. IEEE MTT-S International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9541-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2006.249782
