Abstract

Stub loaded Pocket Shaped Fractal Antenna (PSFA) with defected ground structure of volumetric dimensions 32×36×1.6mm³ for UWB technology has been presented in this manuscript. Proposed antenna’s structure exhibits improved impedance bandwidth in juxtaposition to other geometries like antenna with partial ground plane and ground plane with defects. The ground plane of the proposed antenna has been modified for attaining the improved results. Final, structure of antenna with modified ground plane reveals the wider impedance bandwidth of 11.80GHz (149.36%) and 5.33GHz (30.75%) in the frequency range from 2.0 – 13.80GHz and 14.67 – 20.0GHz respectively. The peak realized gain of antenna is also being computed and divulged as 7.02dB at 9.7GHz frequency band. The co and cross-polarization radiation patterns in E and H-plane of proposed antenna are measured and presented at frequency points 3.0, 4.9, 7.3, 8.8, 10.2, 13.0, 16.6 and 19.4GHz. The proposed antenna has been simulated and its performance is also being investigated by using HFSS V13 simulator. Further, optimized antenna geometry is fabricated, and fair comparison between simulated and measured results has been drawn and divulged in reasonable agreement with each other. The proposed antenna has reported the wider bandwidth which made it a suitable candidate for distinct wireless applications in the UWB frequency range.

摘要

带有缺陷地面结构的短柱加载袖珍型分形天线 (PSFA)，体积尺寸为 32×36×1.6mm ³本手稿中介绍了超宽带技术。所提出的天线结构在与其他几何形状（如具有部分接地平面的天线和有缺陷的接地平面）并列时表现出改进的阻抗带宽。建议的天线的接地平面已被修改以获得改进的结果。最后，修改接地层的天线结构显示，在 2.0 – 13.80GHz 和 14.67 – 20.0GHz 的频率范围内，阻抗带宽分别为 11.80GHz (149.36%) 和 5.33GHz (30.75%)。在 9.7GHz 频段，天线的峰值实现增益也被计算和披露为 7.02dB。在频率点 3.0, 4.9, 7.3, 8.8, 10.2, 13.0, 16.6 和 19.4GHz 处测量并呈现所提议天线的 E 和 H 平面中的同极化和交叉极化辐射方向图。所提出的天线已经过仿真，其性能也正在使用 HFSS V13 仿真器进行研究。此外，制造了优化的天线几何形状，并得出了模拟结果和测量结果之间的公平比较，并以合理的一致性进行了披露。所提出的天线报告了更宽的带宽，使其成为 UWB 频率范围内不同无线应用的合适候选者。