一个多模 28 GHz CMOS 完全差异波束成形IC,用于分相阵列收发器.
Ayush Bhatta1, Jeongsoo Park2, Donghyun Baek3
1Department of Electronic Engineering, Kwangwoon University, Seoul 01897, Republic of Korea.
Sensors (Basel, Switzerland)
|July 14, 2023
概括
本研究介绍了一种用于28 GHz阶段阵列收发器的八通道光束成形集成电路 (BFIC). 该BFIC提供精确的增益和相位控制,用于先进的光束方向应用.
科学领域:
- 电气工程 电气工程
- 微波工程 微波工程
- 集成电路设计 集成电路设计
背景情况:
- 阶段阵列收发器需要先进的光束成型集成电路 (BFIC) 来实现精确的信号定向.
- 28 GHz频段对于新兴的高速无线通信系统至关重要.
研究的目的:
- 实施和描述一个完全差异的八通道光束成形IC (BFIC) 用于28GHz阶段式阵列收发器.
- 通过可调节的增益和相位设置,实现精细的光束方向和光束图案控制.
主要方法:
- 在65nmCMOS技术中实现一个八通道,完全差异化的BFIC.
- 集成两个阶段的双向放大器,六位相位变换器和每通道的三位数字步骤减弱器.
- 包括调位用于振幅和相位变化补偿.
主要成果:
- 在27.0-29.5 GHz之间实现了大约11 dB (Tx) 和9 dB (Rx) 的整体增益.
- 在Tx和Rx模式中,在27.0至29.5GHz范围内,已证明返回损失>10dB.
- 在5.6度分辨率下达到354°的最大相位移,在1dB的分辨率下达到31dB的衰减,RMS相位和振幅误差分别低于3.2°和0.6dB.
结论:
- 开发的28GHz BFIC可以为相控阵系统提供精确的光束方向和图案控制.
- 电路的性能指标,包括增益,返回损失,相位/振幅控制和低误差,适用于先进的收发器应用.
- 紧的芯片尺寸 (3.0 × 3.5 mm2) 和多模式操作增强了它在现代无线通信中的适用性.
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