Title :
Gain control methods for analog base band circuit in direct conversion W-CDMA receiver
Author :
Ichihara, Masaki ; Kimata, Yusuke
Author_Institution :
NEC Corp., Yokohama, Japan
Abstract :
In the analog baseband circuit of a direct conversion receiver especially for W-CDMA, large glitch noises, that would degrade receiving performance, could occur when the baseband gain rapidly and dynamically changes. This paper shows the mechanism of glitch noise occurrences, maximum allowable value for glitch noise and proposes a set of gain control methods to suppress them.
Keywords :
code division multiple access; gain control; interference suppression; mobile radio; radio receivers; W-CDMA; analog baseband circuit; direct conversion receiver; gain control; glitch noise suppression; receiving performance; wireless communication; Band pass filters; Bandwidth; Circuit noise; Degradation; Dynamic range; GSM; Gain control; Multiaccess communication; National electric code; Time division multiple access;
Conference_Titel :
Wireless Communications and Networking Conference, 2002. WCNC2002. 2002 IEEE
Print_ISBN :
0-7803-7376-6
DOI :
10.1109/WCNC.2002.993483
