A High Linearity Variable Gain LNA for WCDMA Receiver Front-end

摘要：

A high linearity variable gain low noise amplifier (VGLNA) used for WCDMA receiver is presented. Power constrained simultaneous noise and input matching (PCSNIM) technique is adopted to design the inductive source degenerated LNA. To improve the dynamic range of the receiver, capacitive divider and current steering technique are adopted to implement the three gain modes. The chip was manufactured using SMIC 0.13-μm CMOS technology. The resulting VGLNA achieves 2.65 dB noise figure with 15.9 dB voltage gain, and 2.3 dBm IIP3 at high gain mode. The core fully differential VGLNA consumes 8 mA from a 1.5 V power supply.

作者: Shilei Hao Jian Fu Yumei Huang Zhiliang Hong

作者单位: State Key Laboratory of ASIC and Systems, Fudan University, Shanghai 201203, China

会议类型: 国际会议

会议名称: 2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology(第十届固态和集成电路技术国际会议 ICSICT-2010)

会议地点: 上海

会议语种:英文

页码: 752-754

在线出版日期: 2010-11-01（万方平台首次上网日期，不代表论文的发表时间）