Analysis and Design of a Full-Duplex Two-Element MIMO Circulator-Receiver With High TX Power Handling Exploiting MIMO RF and Shared-Delay Baseband Self-Interference Cancellation
Analysis and Design of a Full-Duplex Two-Element MIMO Circulator-Receiver With High TX Power Handling Exploiting MIMO RF and Shared-Delay Baseband Self-Interference Cancellation
复制标题
利用 MIMO RF 和共享延迟基带自干扰消除的高 TX 功率处理全双工两元件 MIMO 循环器接收器的分析和设计
DOI：
10.1109/jssc.2019.2945303
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发表时间：
2019
影响因子：
5.4
通讯作者：
H. Krishnaswamy
中科院分区：
文献类型：
--
作者：
Mahmood Baraani Dastjerdi;Sanket Jain;Negar Reiskarimian;A. Natarajan;H. Krishnaswamy
在本文中，我们介绍如何使用 RF 和基带 (BB) 自干扰消除 (SIC) 将全双工 (FD) 操作与多输入多输出 (MIMO) 操作集成。 MIMO 操作将 SIC 要求提高了 <inline-formula> <tex-math notation="LaTeX">$N^{2}$ </tex-math></inline-formula> 倍，导致严重的面积、功耗和噪声损失。我们介绍了应对这一挑战的 RF/BB 消除器的详细分析、设计和实现，以及增强集成环行器接收器 (circ.-RX) 功率处理能力的自举技术。具有集成 <inline-formula> <tex-math notation="LaTeX">$N$ </tex-math></inline-formula> 基于路径滤波器的非磁性环行器的 65 nm CMOS 可扩展二元件 MIMO FD circ.-RX 阵列描述为：1) 利用环行器中的自举 <inline-formula> <tex-math notation="LaTeX">$N$ </tex-math></inline-formula>路径滤波器可将发射机 (TX) 功率处理能力提高 8 dB，2) 具有面积和功率高效的无源 RF 和有源 BB 宽带 MIMO 消除功能，并具有共享延迟元件，可解决 O(<inline-formula> <tex-math notation="LaTeX">$N^{2}$ </tex-math></inline-formula>) 取消挑战。该原型展示了：1) 在 40/20MHz 带宽下平均 SIC 高达 35/45dB； 2) 40-/20-MHz BW 上的平均串扰 (CT)-SIC 超过 42-/53-dB，RX NF 下降 <2.1-dB； 3) 通过时钟自举实现 +14 dBm 的整体 TX 功率处理。
In this article, we present how full-duplex (FD) operation can be integrated with multi-input multi-output (MIMO) operation using RF and baseband (BB) self-interference cancellation (SIC). MIMO operation increases the SIC requirements by a factor of <inline-formula> <tex-math notation="LaTeX">$N^{2}$ </tex-math></inline-formula>, resulting in severe area, power consumption, and noise penalty. We present the detailed analysis, design, and implementation of RF/BB cancellers that address this challenge, as well as a bootstrapping technique to enhance the power handling of integrated circulator-receivers (circ.-RX). A 65-nm CMOS scalable two-element MIMO FD circ.-RX array with integrated <inline-formula> <tex-math notation="LaTeX">$N$ </tex-math></inline-formula>-path-filter-based nonmagnetic circulators is described that: 1) exploits bootstrapping in the circulator <inline-formula> <tex-math notation="LaTeX">$N$ </tex-math></inline-formula>-path filters to enhance Transmitter (TX) power handling by 8 dB and 2) features area- and power-efficient passive RF and active BB wideband MIMO cancellation with shared-delay elements to address the O(<inline-formula> <tex-math notation="LaTeX">$N^{2}$ </tex-math></inline-formula>) cancellation challenge. The prototype exhibits: 1) up to 35-/45-dB average SIC across 40-/20-MHz BW; 2) more than 42-/53-dB average crosstalk (CT)-SIC across 40-/20-MHz BW with <2.1-dB degradation in RX NF; and 3) overall TX power handling of +14 dBm enabled by clock bootstrapping.
影响因子：
5.4
作者：
Dinc, Tolga;Nagulu, Aravind;Krishnaswamy, Harish
通讯作者：
Krishnaswamy, Harish
从单向坡道到双向高速公路：用于全双工无线的集成无磁非互易天线接口
影响因子：
3.6
作者：
Reiskarimian, Negar;Dinc, Tolga;Zhou, Jin;Chen, Tingjun;Dastjerdi, Mahmood Baraani;Diakonikolas, Jelena;Zussman, Gil;Krishnaswamy, Harish
通讯作者：
Krishnaswamy, Harish