An RF Receiver for Intra-Band Carrier Aggregation
An RF Receiver for Intra-Band Carrier Aggregation
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DOI：
10.1109/jssc.2014.2386895
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发表时间：
2015-02
影响因子：
5.4
通讯作者：
Sy-Chyuan Hwu;B. Razavi
中科院分区：
文献类型：
--
作者：
Sy-Chyuan Hwu;B. Razavi
载波聚合是提高无线通信数据速率的一种有吸引力的方法。本文描述了一种高效的载波聚合接收器架构，该架构采用一个接收路径和单个合成器。块下变频可扩展接收器将所有通道转换为基带，并利用新的数字图像抑制技术来重建信号。采用 45 nm CMOS 技术和 FPGA 后端实现的接收器原型可提供至少 70 dB 的镜像抑制比和 3.8 dB 的噪声系数，同时功耗为 15 mW。
Carrier aggregation is an attractive approach to increasing the data rate in wireless communication. This paper describes an efficient carrier aggregation receiver architecture that employs one receive path and a single synthesizer. The block-downconversion scalable receiver translates all of the channels to the baseband and utilizes a new digital image rejection technique to reconstruct the signals. A receiver prototype realized in 45 nm CMOS technology along with an FPGA back end provides an image rejection ratio of at least 70 dB with a noise figure of 3.8 dB while consuming 15 mW.