采用CMOS工艺的W波段相控阵收发机设计

W波段（75~110 GHz）拥有大可用带宽、低大气损耗、短波长以及在多尘和多雾条件下工作的能力，因此具有巨大的应用潜力，涵盖从通信、传感、成像到短程高速数据通信的多个领域。因此，W波段收发机的研究和应用受到了越来越多的关注。本文提出了基于耦合线的收发开关、移相器和衰减器，旨在对应用于W波段的CMOS毫米波相控阵收发机芯片中重要模块和关键技术予以研究。其中，收发开关在复用为功率放大器的输出匹配网络和低噪声放大器的输入匹配网络的同时有效降低了插入损耗，移相器和衰减器实现了极高的分辨率。以上3个关键模块的实现原理和电路设计均在文中进行了详细的阐述，并通过了流片验证。仿真结果和测试结果说明了采用CMOS工艺制造W波段相控阵芯片的可实现性。

A W-Band Transceiver Front-End in 65 nm CMOS Technology

The W-band (75-110 GHz) has great potential for applications ranging from communications, sensing and imaging to short-range high-speed data communication due to its large available bandwidth, low atmospheric losses, short wavelength and ability to operate under dusty and foggy conditions. Therefore, more and more attention has been paid to the research and application of W-band transceivers. In this paper, the transceiver switch, phase shifter and attenuator based on coupling line are proposed to study the important modules and key technologies in the W-band CMOS millimeter-wave phased array transceiver. Among them, the transceiver switch can reduce the insertion loss effectively while multiplexing the output matching network of the power amplifier and the input matching network of the low noise amplifier, and the phase shifter and attenuator achieve very high resolution. The realization principle and circuit design of the above three key modules are described in detail in this paper. The simulation results and measurement results show that the fabrication of W-band phased array chip by CMOS process is feasible.