A SAW-Less Reconfigurable Multimode Transmitter with a Voltage-Mode Harmonic-Reject Mixer in 14nm FinFET CMOS

📋 论文概要

本文提出了一种无SAW滤波器的可重构多模发射机，采用电压模式谐波抑制混频器，在14nm FinFET CMOS工艺中实现，解决了多模蜂窝RFIC中高线性度与低噪声之间的权衡问题，降低了物料成本。

💡 主要创新点

• 提出电压模式谐波抑制混频器，有效抑制谐波干扰，实现SAW-less发射机设计。
• 采用可重构架构，支持多模多频段操作，满足LTE和2G等不同标准的需求。
• 在14nm FinFET工艺中实现，兼顾高性能与低功耗，适用于移动设备。

🏷 关键词

📄 原文摘要

Multimode cellular RFICs need high dynamic range in order to simultaneously satisfy the high linearity requirements of LTE and the low-noise performance of 2G. Traditionally, SAW filters are employed to relax the noise-linearity trade-off at the cost of higher BOM. In a highly competitive market, mobile devices need to support >35 LTE bands, a number which is expected to rise further in the future, providing a strong motivation for SAW-less transmitter (TX) design. An LTE TX operating in the single resource-block (RB) mode is susceptible to spurious outof-band (OOB) emission due to the high power spectral density concentrated in narrow bandwidths at frequency offsets as large as 4.5MHz (LTE10) or 9MHz (LTE20) from the carrier [1]. The most challenging condition is for B13 where the

👥 作者与机构

Venumadhav Bhagavatula1, Daehyun Kwon2, Jaehun Lee2,

Quang-Diep Bui2, Jeong-Hyun Choi2, Siuchuang-Ivan Lu1, Sangwon Son1 Samsung Semiconductor, San Jose, CA Samsung Electronics, Gyeongii-do, Korea 1 2