Bhatta Ayush, Kamrojjaman Md, Sim Sanghoon, Kim Jeong-Geun
Department of Electronic Engineering, Kwangwoon University, Seoul 01897, Republic of Korea.
School of Electronics Engineering, Chungbuk National University, Cheongju 28644, Republic of Korea.
Sensors (Basel). 2024 Mar 20;24(6):1983. doi: 10.3390/s24061983.
This paper presents a 5G new radio (NR) FR2 beamforming system with an integrated transceiver module. A real-time operating module providing enhanced flexibility and capability has been proposed. The integrated RF beamforming system with an integrated transceiver module can be operated in 8Tx-8Rx mode configuration simultaneously. A series-fed structure 8 × 7 microstrip antenna array for compact size and improved directivity is employed in the RF beamforming module. The RF beamforming module incorporates a custom 28 GHz, eight-channel fully differential beamforming IC (BFIC). An eight-channel BFIC in a phased-array beamforming system offers advantages in terms of increased antenna density and improved beam steering precision. The RF beamforming module is integrated with an RF transceiver module that enables the simultaneous up-conversion and down-conversion of the baseband signal. The RF transmitter module consists of a transmitter, a receiver, a signal generator, a power supply, and a control unit. The RF beamforming system can scan horizontally from -50° to +50° with a step of 10°. To achieve an optimized beam pattern, a calibration was conducted. The transmit and receive conversion gain of around 20 dB is achieved with the transceiver module. To verify the communication performance of the manufactured integrated RF beamforming system, a real-time wireless video transmission/reception test was performed at a frequency of 28 GHz, and the video file was transmitted smoothly in real time without interruption within a range of ±50°.
本文介绍了一种具有集成收发器模块的5G新无线电（NR）FR2波束成形系统。提出了一种具有增强灵活性和能力的实时操作模块。具有集成收发器模块的集成射频波束成形系统可以同时在8Tx-8Rx模式配置下运行。射频波束成形模块采用了串联馈电结构的8×7微带天线阵列，以实现紧凑尺寸和提高方向性。射频波束成形模块集成了一个定制的28GHz八通道全差分波束成形集成电路（BFIC）。相控阵波束成形系统中的八通道BFIC在增加天线密度和提高波束转向精度方面具有优势。射频波束成形模块与一个射频收发器模块集成在一起，该模块能够对基带信号进行同时上变频和下变频。射频发射机模块由发射机、接收机、信号发生器、电源和控制单元组成。射频波束成形系统可以在-50°至+50°范围内以10°的步长进行水平扫描。为了获得优化的波束方向图，进行了校准。收发器模块实现了约20dB的发射和接收转换增益。为了验证所制造的集成射频波束成形系统的通信性能，在28GHz频率下进行了实时无线视频传输/接收测试，视频文件在±50°范围内实时顺利传输且无中断。
