WCDMA multicarrier receiver for base-station applications
WCDMA multicarrier receiver for base-station applications
复制标题
用于基站应用的 WCDMA 多载波接收器
DOI：
10.1109/jssc.2006.873924
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发表时间：
2005
影响因子：
5.4
通讯作者：
K. Halonen
中科院分区：
文献类型：
--
作者：
J. Ryynänen;M. Hotti;V. Saari;J. Jussila;A. Malinen;L. Sumanen;T. Tikka;K. Halonen
本文所述的多载波接收机集成电路同时接收四个相邻的WCDMA信道，以减少基站的元件数量。该接收器采用低中频架构，它是一个0.25妈妈SiGe BiCMOS工艺制造，以满足高性能的基站应用程序的要求。该接收机内置双输入低噪声放大器（LNA）、正交混频器、本振（LO）分频器、IIP 2校准电路、10 MHz低通滤波器和ADC缓冲器。接收机的噪声系数，在下变频的WCDMA信道集中在2.5 MHz和7.5 MHz的中频测量，分别为3.0 dB和2.6 dB。在2.5V电源电压下，该接收机实现了47 dB的电压增益和-12dBm的带外IIP 3，功耗为535 mW
The multicarrier receiver IC described in this paper receives four adjacent WCDMA channels simultaneously in order to reduce the component count of a base-station. The receiver uses low-IF architecture and it is fabricated with a 0.25-mum SiGe BiCMOS process to meet the high-performance requirements set by the base-station application. The receiver includes a dual-input low-noise amplifier (LNA), quadrature mixers, a local-oscillator (LO) divider, IIP2 calibration circuits, 10-MHz low-pass filters, and ADC buffers. The receiver noise figures, measured over the downconverted WCDMA channels centered at 2.5-MHz and 7.5-MHz intermediate frequencies, are 3.0 dB and 2.6 dB, respectively. The receiver achieves 47-dB voltage gain and -12-dBm out-of-band IIP3 and consumes 535mW from a 2.5-V supply