A 37–42-GHz 8 × 8 Phased-Array With 48–51-dBm EIRP, 64–QAM 30-Gb/s Data Rates, and EVM Analysis Versus Channel RMS Errors
A 37–42-GHz 8 × 8 Phased-Array With 48–51-dBm EIRP, 64–QAM 30-Gb/s Data Rates, and EVM Analysis Versus Channel RMS Errors
复制标题
具有 48-51-dBm EIRP、64-QAM 30-Gb/s 数据速率以及 EVM 分析与通道 RMS 误差的 37-42-GHz 8 × 8 相控阵
DOI：
10.1109/tmtt.2020.2998183
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发表时间：
2020
影响因子：
4.3
通讯作者：
Gabriel M. Rebeiz
中科院分区：
文献类型：
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作者：
Yusheng Yin;S. Zihir;T. Kanar;Q. Ma;Hyunchul Chung;Li Gao;Gabriel M. Rebeiz
本文介绍了一种5G 37-42 GHz$8×8$相控阵。该阵列基于SiGe技术中的$2\x 2$SiGe发射/接收(TRX)波束形成器芯片，具有6位相位控制和8位增益控制。详细研究了阵级幅相误差对阵元辐射误差矢量值的影响。该阵列在低副瓣的方位面上扫描到±60°，在仰面上扫描到±50°。在PSAT处测得的峰值有效各向同性辐射功率为51dBm，3分贝带宽为36-41.5 GHz。文中还展示了一个39 GHz的通信系统，以及一个高通滤波器和一个集成的上/下变频器，获得了50dBc的本振(LO)和镜像抑制电平，满足了FCC对<；−13dBm/MHz的总泄漏功率的要求。该阵列使用-QAM 200 MHz波形，在所有扫描角度(包括LO和上变频器/下变频器)的平均EIRRP值为44dBm时，实现了5%的均方根电平(−26分贝)。还显示了一条采用-QAM调制的30 Gb/S通信链路。据我们所知，这是面向5G应用的39 GHz相控阵通信系统的首次演示。
This article presents a 5G 37–42-GHz $8\times 8$ phased array. The array is based on $2\times 2$ SiGe transmit/receive (TRX) beamformer chips in the SiGe technology with 6 bits of phase control and 8 bits of gain control. A detailed study is presented, showing the effects of array-level amplitude and phase errors on the radiated error vector magnitude (EVM) of 64-element arrays. The array scans to ±60° in the azimuth plane and ±50° in the elevation plane with low sidelobes. The measured peak effective isotropic radiated power (EIRP) is 51 dBm at Psat with a 3-dB bandwidth of 36–41.5 GHz. A 39-GHz communication system is also demonstrated along with a high-pass filter and an integrated upconverter/downconverter and achieves a local oscillator (LO) and image rejection level of 50 dBc, meeting FCC requirements of <−13 dBm/MHz of total leakage power. The array achieves < 5% EVM (−26 dB) using a 64-QAM 200-MHz waveform at an average EIRP of 44 dBm over all scan angles, including the LO and upconverter/downconverter contributions. A 30-Gb/s communication link with 64-QAM modulation is also shown. To our knowledge, this is the first demonstration of a 39-GHz phased-array communication system for 5G applications.