A Low-Power Process-Scalable Superheterodyne Receiver with Integrated High-Q Filters

📋 论文概要

该论文提出了一种低功耗、工艺可扩展的超外差接收机，集成了高Q滤波器，解决了传统低中频架构中滤波器面积大、不随工艺缩放的问题。通过采用超外差架构和集成高Q滤波器，实现了高性能和工艺可扩展性。

💡 主要创新点

• 提出了一种工艺可扩展的超外差接收机架构，克服了传统低中频架构中滤波器面积随工艺缩放困难的问题。
• 集成了高Q滤波器，实现了高性能的通道选择和镜像抑制，同时降低了功耗。

🏷 关键词

📄 原文摘要

low-IF, benefitting from a simple structure, and a high level of integration as image rejection is not a major concern, and channel selection is performed by low-frequency lowpass filters [Fig. 3.5.1(a)]. Dominated by linear capacitors and resistors, the lowpass filters which are typically active-RC occupy a large die area that does not scale with the technology. In addition, constraints such as 1/f noise, 2nd-order nonlinearity, and DC offset demand large device sizes for the IF blocks, further exacerbating the scalability issue. On the other hand, a superheterodyne architecture [Fig. 3.5.1(b)] does not experience the above shortcomings due to a considerably higher IF, but needs external filters for image rejection and channel selection. Recently it has been shown that frequency-translated BPFs offer high-Q filtering

👥 作者与机构

Ahmad Mirzaei1, Hooman Darabi1, David Murphy2, 1

Broadcom, Irvine, CA, 2University of California, Los Angeles, CA So far most integrated receivers are zero or