Title :
A Low-Power CMOS SAW-Less Quad Band WCDMA/HSPA/HSPA+/1X/EGPRS Transmitter
Author :
Cassia, M. ; Hadjichristos, A. ; Hong Sun Kim ; Jin-Su Ko ; Jeongsik Yang ; Sang-Oh Lee ; Sahota, G.
Author_Institution :
Qualcomm Inc., San Diego, CA
fDate :
7/1/2009 12:00:00 AM
Abstract :
In this paper we present a multi-band CMOS transmitter for cellular applications. The transmitter covers a wide range of frequency bands and it is designed to minimize power consumption in order to increase handset talk-time. The output noise performance allows the removal of SAW for certain W-CDMA and CDMA bands; moreover it can be configured to be used for SAW-less GSM/EDGE operations while maintaining an excellent linearity.
Keywords :
CMOS integrated circuits; broadband networks; cellular radio; code division multiple access; low-power electronics; radio transmitters; radiofrequency integrated circuits; EGPRS transmitter; GSM-EDGE operation; HSPA transmitter; WCDMA; low-power CMOS SAW-less quad band transmitter; multiband CMOS transmitter; power consumption; 3G mobile communication; Baseband; Batteries; Energy consumption; Frequency; GSM; Multiaccess communication; Radio transmitters; SAW filters; Telephone sets; Cellular; EDGE; HSPA; SAW-less; WCDMA; direct conversion transmitter; multi-band transmitter; multi-mode transmitter;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2009.2020228
