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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >A dual band-notched ultra-wideband monopole antenna with spiral-slots and folded SIR-DGS as notch band structures
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A dual band-notched ultra-wideband monopole antenna with spiral-slots and folded SIR-DGS as notch band structures

机译：具有螺旋槽和折叠式SIR-DGS作为陷波结构的双频带陷波超宽带单极天线

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摘要

In this paper, an ultra-wideband (UWB) planar monopole antenna with impedance bandwidth from 2.83 to 11.56 GHz and dual band-notched characteristics is presented. The antenna consists of a small rectangular ground plane, a bat-shaped radiating patch, and a 50-V microstrip line. The notched bands are realized by introducing two different types of structures. The half-wavelength spiral-slots are etched on the radiating patch to obtain a notched band in 5.15 5.925 GHz for WLAN, HIPERLAN, and DSRC systems. Based on the single band-notched UWB antenna, the second notched band is realized by etching a folded stepped impedance resonator as defected ground structure on the ground plane for WiMAX and C-band communication systems. The notched frequencies can be adjusted by altering the length of resonant cells. Surface current distributions and equivalent circuit are used to illustrate the notched mechanism. The performance of this antenna both by simulation and by experiment indicates that the proposed antenna is suitable and a good candidate for UWB applications.
机译：本文提出了一种阻抗带宽为2.83至11.56 GHz且具有双频带陷波特性的超宽带（UWB）平面单极天线。天线由一个小的矩形接地平面，一个蝙蝠形的辐射贴片和一条50V的微带线组成。通过引入两种不同类型的结构可以实现带状切口。将半波长螺旋槽蚀刻在辐射贴片上，以在WLAN，HIPERLAN和DSRC系统中获得5.15 5.925 GHz的陷波频带。基于单频带带缺口的UWB天线，通过在WiMAX和C频带通信系统的接地面上蚀刻折叠的阶梯式阻抗谐振器作为缺陷接地结构，可以实现第二个带隙频带。可以通过改变谐振单元的长度来调整陷波频率。表面电流分布和等效电路用于说明缺口机制。无论是通过仿真还是通过实验，该天线的性能均表明该天线非常适合UWB应用。

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