近场宽带电场耦合天线是一种新型的短距离、高速无线通信天线,它是索尼公司力推的近距离高速无线通信技术——TrallsfeIjetTM的工作天线.使用高频结构模拟器软件,对一种典型的近场宽带电场耦合天线进行了参数化的结构设计;通过仿真模拟,分析短截线的线长和线宽,以及耦合电极的面积对天线中心频率和工作带宽的影响:分析了天线问的距离和夹角,以及耦合电极的面积,对天线传输损耗和性能的影响.设计了一个满足TransferjetTM技术指标的小尺寸天线,给出了性能仿真结果.
Electric field coupling antenna is a new type of antenna that can be used in high speed wireless communication at a very short distance. It is the working antenna for TransferjetTM technology promoted by Sony Corporation. In this paper, we use the high frequency structure simulator to design a typical antenna of this kind with parametric structures. We analyze the influences of the length (Ls) and width (Ws) of the short stub, the height (H) of coupling electrode on the performance of the antenna corresponding to the centre frequency and bandwidth. We also analyze the effects of the distance (d) and angle (θ) between two antennas and the size of coupling electrode (Lc) on transmission loss. Finally, we design an antenna satisfying the technology standards of TransferjetTM, thus demonstrate its working performance.