Bandwidth enhancement of single notch planar UWB antenna with single step feed line

2015 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT) Pub Date : 2015-12-21 DOI:10.1109/AEECT.2015.7360537

A. Abbas, M. Abdelazeez

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引用次数: 6

Abstract

A compact single notch microstrip-fed monopole ultra-wideband (UWB) antenna with bandwidth (BW) enhancement is proposed. To improve the impedance BW, a rectangular slot is etched in the bottom edges of a rectangular radiating patch and the feed line is modified in staircase manner with single step junction. As a result, the antenna achieves a wide operational impedance BW ranging from 3.25 to 40 GHz for return loss (RL) > 10 dB. Also, a band rejection with center frequency at 5.5 GHz is introduced to avoid the interference caused by WLAN system. The rejected band, inherent in the antenna characteristics, is created by etching a thin rectangular slot in the patch. The proposed antenna dimensions are 35×30×1.6 mm3 was built using FR-4 substrate. In comparison to other antenna designs devoted to enhance the impedance BW for future UWB applications, this antenna has simple structure suitable for fabrication and integration. RL, peak realized gain, radiation efficiency, surface current distribution, and the effect of varying geometric parameters of the antenna on the notch band are studied using high frequency structure simulator (HFSS).

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单阶馈线单缺口平面超宽带天线的带宽增强

提出了一种具有带宽增强功能的小型单缺口微带馈电单极超宽带天线。为了提高阻抗BW，在矩形辐射片的底边蚀刻矩形槽，并采用单阶结对馈线进行阶梯修正。因此，该天线在回波损耗(RL) bbb10 dB时实现了3.25至40 GHz的宽工作阻抗BW。同时，为了避免无线局域网系统的干扰，引入了中心频率为5.5 GHz的带抑制。通过在贴片上蚀刻一个薄的矩形槽来产生天线特性固有的拒绝带。提出的天线尺寸为35×30×1.6 mm3，采用FR-4基板构建。与其他致力于提高未来超宽带应用阻抗BW的天线设计相比，该天线结构简单，适合制造和集成。利用高频结构模拟器(HFSS)研究了RL、峰值实现增益、辐射效率、表面电流分布以及天线几何参数对陷波带的影响。

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2015 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)

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