一种具有缺陷接地结构的简单紧凑的cpw馈电超宽带印刷单极天线

2013 8th International Conference on Electrical and Electronics Engineering (ELECO) Pub Date : 2013-11-01 DOI:10.1109/ELECO.2013.6713881

Muzeyyen Karamanoğlu, M. Abbak, S. Simsek

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引用次数: 5

摘要

提出了一种基于CPW馈电的超宽带单极天线。天线的辐射片由上切的半圆和下缘的三角形组成。天线的底部包括具有两个不同对称斜面的矩形缺陷接平面。通过在地平面上切割这些斜角，可以提供除5.4-7 GHz频段外的整个UWB范围的带宽覆盖。为了增强5.4 ~ 7 GHz频段的输入阻抗带宽特性，对贴片下缘三角形部分和上缘顶切半圆部分的尺寸进行了优化。建议天线的总体尺寸为22×20×1 mm3。利用市售的ANSYS的HFSS程序进行了仿真，该程序采用有限元法(FEM)。结果表明，在VSWR< 2时，实现了3.6 ~ 12.2 GHz阻抗带宽的110%。此外，天线在XZ平面上具有稳定的全向方向图。此外，本文还在FR4基板上制作了天线，并对其进行了测量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A simple and compact CPW-fed UWB printed monopole antenna with defected ground structures

A planar simple and compact monopole antenna for UWB applications is proposed with CPW feeding. The radiating patch of the antenna consists of a top-cut half-circle together with a triangle on the lower edge. The bottom side of the antenna includes a rectangular defected ground plane with two different symmetrical bevels. By cutting out these bevels on the ground plane, bandwidth coverage of the overall UWB range except 5.4-7 GHz frequency band is provided. To enhance input impedance bandwidth characteristics at 5.4-7 GHz frequency band, dimensions of the triangular part on the lower edge of the patch and top-cut half-circle part on the upper edge are optimized. The overall size of the proposed antenna is 22×20×1 mm3. Simulations are carried out using commercially available ANSYS's HFSS program which uses the finite element method (FEM). Results show that 110% of the impedance bandwidth between 3.6 and 12.2 GHz for VSWR<;2 is achieved. Moreover, antenna has a stable omnidirectional pattern at XZ plane over the frequency band. Also, the presented antenna is fabricated on FR4 substrate and it is measured.

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来源期刊

2013 8th International Conference on Electrical and Electronics Engineering (ELECO)

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