【作者】 杨怡杰； 吴琦；

【Author】 Yijie Yang;Qi Wu;School of Electronics and Information Engineering,Bcihang University;

【机构】 北京航空航天大学电子信息工程学院；

【摘要】 随着通信技术的不断发展,无源天线的带宽渐渐无法满足需求,尤其是低频无源天线尺寸较大。本文提出了一种有源集成接收天线,由领结天线和三级差分放大电路构成。领结天线采用扇形天线臂,单独工作时能够在390～980 MHz实现VSWR<2(相对带宽为86.1%)。差分放大电路在10 kHz～200 MHz对差模信号的最大增益可达54 dB。二者结合构成的有源集成天线,将进一步扩展工作带宽。更多还原

【Abstract】 With the continuous development of communication technology,the bandwidth of passive antenna gradually cannot meet the demand,active antenna gradually become popular.This paper presents an active integrated receiving antenna,which is composed of a bowtie antenna and a three-stage differential amplifier.The bowtie antenna adopts a fan-shaped antenna arm,which can achieve VSWR<2(relative bandwidth is 86.1 %) at 390～980 MHz when working alone.The maximum gain of differential mode signal can reach 54 dB in the range of 10 kHz～200 MHz.The combined active integrated antenna will further expand the working bandwidth.更多还原