A Fully Integrated 32 Gbps 2x2 LoS MIMO Wireless Link with UWB Analog Processing for Point-to-Point Backhaul Applications
A Fully Integrated 32 Gbps 2x2 LoS MIMO Wireless Link with UWB Analog Processing for Point-to-Point Backhaul Applications
复制标题
具有 UWB 模拟处理功能的完全集成 32 Gbps 2x2 LoS MIMO 无线链路，适用于点对点回程应用
DOI：
10.1109/rfic49505.2020.9218371
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
A. Arbabian
中科院分区：
文献类型：
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作者：
Mahmoud Sawaby;Baptiste Grave;C. Jany;Cheng Chen;Siavash Kananian;P. Calascibetta;F. Gianesello;A. Arbabian
在本文中，我们展示了一个概念验证的130 GHz无线2x2视距（LoS）多输入多输出（MIMO）收发器，使用完全封装的发射和接收阵列和可扩展的模拟基带处理。该链路利用瑞利准则在LoS信道上传输独立的无线流。发射器（TX）和接收器（RX）芯片与集成毫米波天线完全封装在一起。双元件QPSK TX阵列的功耗为432 mW，而整个四通道QPSK MIMO RX的功耗为630 mW，支持四个并发的130 GHz毫米波通道，模拟通带带宽为20 GHz。无线测量表明，在40厘米的32 Gbps QPSK传输，允许83 pJ/ bit/ m的链路效率和33 pJ/ bit的能源效率。将系统从这里测量的两个通道扩展到RX芯片支持的四个通道，将使数据速率和报告的范围加倍。
In this paper, we demonstrate a proof-of-concept 130 GHz wireless 2x2 line-of-sight (LoS) multi-input multi-output (MIMO) transceiver using fully packaged transmit and receive arrays and scalable analog baseband processing. The link utilizes the Rayleigh criterion to transmit independent wireless streams over a LoS channel. The transmitter (TX) and receiver (RX) chips are fully packaged with integrated mm-wave antennas. The two-element QPSK TX array consumes 432 mW, while the entire four-channel QPSK MIMO RX consumes 630 mW and supports four concurrent 130 GHz mm-wave channels with a simulated passband bandwidth of 20 GHz. Wireless measurements demonstrate 32 Gbps QPSK transmission over 40 cm, allowing for a link efficiency of 83 pJ/ bit/ m and an energy efficiency of 33 pJ/ bit. Scaling the system from the two channels measured here to the four channels supported by the RX chip will double the data rate as well as the range reported.