Millimeter-wave full-duplex wireless: Applications, antenna interfaces and systems
Millimeter-wave full-duplex wireless: Applications, antenna interfaces and systems
复制标题
DOI：
10.1109/cicc.2017.7993663
复制
发表时间：
2017-04
期刊：
影响因子：
--
通讯作者：
T. Dinc;H. Krishnaswamy
中科院分区：
文献类型：
--
作者：
T. Dinc;H. Krishnaswamy
毫米波提供比射频更宽的信道带宽（BW），并引起了短距离无线个人区域网络（wpan）、车载雷达和下一代（5G）蜂窝通信的极大兴趣。全双工是另一种新兴技术，理论上可以通过在同一频率上同时发送和接收数据，使数据容量增加一倍。本文综述了哥伦比亚大学毫米波全双工技术的最新进展，该技术融合了这两种新兴技术。在这种情况下，描述了毫米波全双工链路的潜在应用。讨论了在45nm SOI CMOS中实现的60GHz全双工收发器和25GHz无磁非互易无源环行器。60GHz全双工收发器采用基于极化的天线和射频对消，实现近80dB的自干扰（SI）抑制。25GHz环行器基于时空电导率调制，在4.6GHz 1dB插入损耗（IL） BW上实现3.2dB插入损耗，>18.3dB隔离（受测量设置限制），>20dBm输入P1dB。最后，对今后的研究方向进行了展望。
Millimeter-waves offer significantly wider channel bandwidths (BW) than RF and are drawing significant interest for short-range wireless personal area networks (WPANs), vehicular radar and next generation (5G) cellular communication. Full-duplex is another emergent technology which can theoretically double the data capacity by transmitting and receiving simultaneously on the same frequency. This paper reviews recent developments at Columbia University on millimeter-wave full-duplex which merges these two emergent technologies. In this context, potential applications for millimeter-wave full-duplex links are described. A 60GHz full-duplex transceiver and 25GHz magnetic-free non-reciprocal passive circulator implemented in 45nm SOI CMOS are discussed. The 60GHz full-duplex transceiver employs polarization-based antenna and RF cancellation to achieve almost 80dB self-interference (SI) suppression. The 25GHz circulator is based on spatio-temporal conductivity modulation and achieves 3.2dB insertion loss, >18.3dB isolation (limited by the measurement setup) over a 4.6GHz 1dB insertion loss (IL) BW, and an input P1dB of >20dBm. Finally, topics for future research are discussed.