【作者】 曹天豪； 张勇；

【Author】 CAO Tian-hao;ZHANG Yong;School of Electronic Science and Engineering,UESTC;

【机构】 电子科技大学电子科学与工程学院；

【摘要】 低噪放是接收系统的核心,在卫星通信,精确制导、毫米波雷达均有重要应用。本文设计了一款覆盖整个W波段的低噪放模块,该模块由波导-微带探针过渡结构、直流供电电路、低噪放芯片构成。波导-微带探针采用E面探针实现,仿真结果表明在68-112GHz回波损耗优于20dB,插损小于0.3dB。最终设计的低噪放模块在78GHz-104GHz小信号增益大于15dB,饱和输出功率为7dBm,输出P_1dB功率压缩点为6.5dBm。更多还原

【Abstract】 Low-noise amplifier is the core of the receiving system, and has important applications in satellite communications, precision guidance, and millimeter wave radar. In this paper, a low-noise amplifier module covering the entire W-band is designed. The module is composed of a waveguide-microstrip probe transition structure, a DC power supply circuit, and a low-noise amplifier chip,etc. The waveguide-microstrip probe is implemented with an E-surface probe. The simulation results show that the return loss is better than 20 dB at 68-112 GHz, and the insertion loss is less than 0.3 dB. The measured results of the LNA module show that small signal gain greater than 15 dB in the 78 GHz-104 GHz, Saturated output power is 7 dBm, output P_1dB power compression point is 6.5 dBm.更多还原