A Multi-Band 16-52-GHz Transmit Phased Array Employing 4 x 1 Beamforming IC With 14-15.4-dBm $P_{ sat}$ for 5G NR FR2 Operation
A Multi-Band 16-52-GHz Transmit Phased Array Employing 4 x 1 Beamforming IC With 14-15.4-dBm $P_{ sat}$ for 5G NR FR2 Operation
复制标题
DOI：
10.1109/jssc.2021.3134325
复制
发表时间：
2021-12-21
影响因子：
5.4
通讯作者：
Rebeiz, Gabriel M.
中科院分区：
文献类型：
--
作者：
Alhamed, Abdulrahman;Gultepe, Gokhan;Rebeiz, Gabriel M.
本文介绍了一种支持第五代（5G）新射频范围2（NR FR 2）频段的毫米波（mm波）多频段发射（Tx）相控阵设计。采用两个宽带16-52 GHz 4x 1 Tx波束形成器芯片和锥形缝隙Vivaldi天线阵列，提出了一种八单元相控阵模块。波束形成器芯片采用SiGe BiCMOS工艺设计，并在印刷电路板（PCB）上翻转。SiGe集成电路（IC）具有四个差分射频（RF）波束成形通道，每个通道由有源巴伦、基于模拟加法器的移相器（PS）、可变增益放大器（VGA）和两级AB类功率放大器（PA）组成。RF输入信号使用紧凑型威尔金森网络分配到四个通道。在20-50 GHz频率范围内，测得峰值增益为28.3 dB，输出功率为13.5-14.7 dBm，饱和功率为14 ~ 15.4 dBm。在${P_{1，{ dB}}$时，每个通道采用2 V和3 V电源时的功耗为250 mW。波束形成器芯片使用64-QAM波形进行测试，并在5.2%rms EVM和9.6-dBm平均功率下实现2.4 Gb/s的数据速率。八元件相控阵模块具有出色的方向图和+/- 60度扫描能力，在19.5-51 GHz时具有32-34 dBm的峰值有效各向同性辐射功率（EIRP）。在EIRP为21-22 dBm时，400 MHz 256-QAM 5G-NR兼容波形以
This article introduces a millimeter-wave (mm-wave) multi-band transmit (Tx) phased-array design supporting the fifth-generation (5G) new radio frequency range 2 (NR FR2) bands. An eight-element phased-array module is presented employing two wideband 16-52 GHz 4x1 Tx beamformer chips and tapered slot Vivaldi antenna array. The beamformer chips are designed in a SiGe BiCMOS process and flipped on a printed circuit board (PCB). The SiGe integrated circuit (IC) has four differential radio frequency (RF) beamforming channels each consisting of an active balun, analog adder-based phase shifter (PS), variable gain amplifier (VGA), and a two-stage class-AB power amplifier (PA). The RF input signal is distributed to the four channels using a compact Wilkinson network. The measured peak gain is 28.3 dB with 13.5-14.7 dBm output ${P_{1,{dB}}}$ and 14-15.4 dBm ${P_{ sat}}$ at 20-50 GHz. Each channel dissipates 250 mW from 2 V and 3-V supplies at ${P_{1,{ dB}}}$ . The beamformer chip is tested using 64-QAM waveforms and achieves a data rate of 2.4 Gb/s at 5.2% rms EVM and 9.6-dBm average power. The eight-element phased-array module shows a broadband performance with excellent patterns and +/- 60 degrees scanning capability and with a peak effective isotropic radiated power (EIRP) of 32-34 dBm at 19.5-51 GHz. At an EIRP of 21-22 dBm, 400-MHz 256-QAM 5G-NR compliant waveforms are transmitted with