An RF Receiver for Intra-Band Carrier Aggregation

作者：Hwu Sy Chyuan^*; Razavi Behzad

来源：IEEE Journal of Solid-State Circuits, 2015, 50(4): 946-961.

DOI：10.1109/JSSC.2014.2386895

• Block downconversion
• broadband LNA
• carrier aggregation
• image rejection
• LTE

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.

• 出版日期2015-4