Title :
A translinear-based chip for linear LINC transmitters
Author :
Bo Shi ; Sundstrom, L.
Author_Institution :
Dept. of Appl. Electron., Lund Univ., Sweden
Abstract :
The LINC transmitter provides linear amplification using nonlinear but power efficient amplifiers. The signal component separator (SCS) is a crucial function of LINC. This paper presents a 200 MHz IF SCS chip implemented in a 0.8 /spl mu/m BiCMOS process using a novel design based on translinear circuits. The experimental LINC transmitter, built with the chip and nonlinear amplifiers, had output spurious levels around -55 dBc for both a NADC signal and a PHS signal. This implies a high degree of linearity.
Keywords :
BiCMOS analog integrated circuits; Radio transmitters; VHF amplifiers; 0.8 micron; 200 MHz; BiCMOS process; IF signal component separator chip; NADC signal; PHS signal; linear LINC transmitters; linear amplification; nonlinear amplifiers; translinear-based chip; Circuit synthesis; Digital signal processing; High power amplifiers; Linearity; Particle separators; Power amplifiers; Radiofrequency amplifiers; Signal processing; Transmitters; Wireless communication;
Conference_Titel :
VLSI Circuits, 2000. Digest of Technical Papers. 2000 Symposium on
Conference_Location :
Honolulu, HI, USA
Print_ISBN :
0-7803-6309-4
DOI :
10.1109/VLSIC.2000.852851
