射频变换器线性化技术对工艺、电压和温度变化具有鲁棒性

2014 IEEE Asian Solid-State Circuits Conference (A-SSCC) Pub Date : 2014-11-11 DOI:10.1109/ASSCC.2014.7008928

H. Kundur, E. Klumperink, B. Nauta, V. Srinivasan, Ali Kiaei

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引用次数: 4

摘要

提出了一种用于软件定义无线电接收机的可重构线性化低噪声跨导放大器的设计方案。该晶体管设计旨在以一种对工艺、电压和温度变化具有鲁棒性的方式实现RF的高线性度。它利用电阻退化与浮动电池旁通电路和副本偏置相结合，以鲁棒的方式提高IIP3。具有电流域混频器的LNTA是在45纳米CMOS工艺中实现的。与具有相同跨导的基于逆变器的LNTA相比，它将PIIP3从2 dBm提高到8 dBm的稳健PIIP3，但功耗增加了67%。

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RF transconductor linearization technique robust to process, voltage and temperature variations

A new reconfigurable linearized low noise transconductance amplifier (LNTA) design for a software-defined radio receiver is presented. The transconductor design aims at realizing high linearity at RF in a way that is robust for Process, Voltage and Temperature variations. It exploits resistive degeneration in combination with a floating battery by-pass circuit and replica biasing to improve IIP3 in a robust way. The LNTA with current domain mixer is implemented in a 45nm CMOS process. Compared to an inverter based LNTA with the same transconductance, it improves PIIP3 from 2 dBm to a robust PIIP3 of 8 dBm at the cost of 67% increase in power consumption.

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2014 IEEE Asian Solid-State Circuits Conference (A-SSCC)

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