Li Xue-Ping, Xu Gang, Duan Chang-Jiao, Ma Ming-Rong, Shi Shui-E, Li Wei
College of Electronic and Electrical Engineering, Henan Normal University, Xinxiang 453600, China.
Henan Key Laboratory of Optoelectronic Sensing Integrated Application, Henan Normal University, Xinxiang 453600, China.
Micromachines (Basel). 2021 Aug 27;12(9):1029. doi: 10.3390/mi12091029.
A novel compact tapered-slot-fed antenna (TSA) with anti-spiral shape and lumped resistors is presented for ultra-wideband (UWB) applications. Unique coplanar waveguide (CPW) to coplanar strip (CPS) feeding structure and exponential slot are designed to ensure the continuous current propagation and good impedance matching. With a pair of anti-spiral-shaped structure loadings at the end of the antenna, the radiation performance in lower operating band can be enhanced obviously. The typical resistor loading technique is applied to improve the time domain characteristics and expand the bandwidth. The fabricated prototype of this proposed antenna with a size of 53 × 63.5 mm was measured to confirm simulated results. The proposed antenna has S11 less than -10 dB in the range of 1.2-9.8 GHz, and the group delay result is only 0.4 ns. These findings indicate the proposed antenna can be taken as a promising candidate in UWB communication field.
本文提出了一种用于超宽带（UWB）应用的新型紧凑型带集总电阻的反螺旋形渐变槽馈电天线（TSA）。设计了独特的共面波导（CPW）到共面带线（CPS）馈电结构和指数槽，以确保电流的连续传播和良好的阻抗匹配。在天线末端采用一对反螺旋形结构加载，可以明显提高较低工作频段的辐射性能。应用典型的电阻加载技术来改善时域特性并扩展带宽。制作了尺寸为53×63.5mm的该天线原型进行测量，以验证仿真结果。所提出的天线在1.2 - 9.8GHz范围内S11小于-10dB，群延迟结果仅为0.4ns。这些结果表明，所提出的天线可作为超宽带通信领域中一个有前景的候选方案。
