Design of a Small and Compact Monopole Ultra Wideband Antenna

B. Wang, Yanyu Wei
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引用次数: 8

Abstract

A small and compact microstrip-fed monopole antenna, which consists of a rectangular patch and a truncated ground plane, is presented for ultra wideband (UWB) application. The antenna occupies a compact size of $\mathbf{26 mm\times 32 mm \times 0.762 mm}$, including the feeding mechanism. Proposed antenna, which is printed on Rogers substrate with a relative permittivity of 2.2 has been easily fabricated and has low manufacturing cost. Measured results show good agreement with the simulated results and the proposed antenna has an impedance bandwidth of 3.8-14.8 GHz for a voltage standing-wave ratio less than 2. Furthermore, good radiation patterns indicate that the proposed antenna is well suited to be integrated within various portable devices for UWB application.
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小型紧凑单极超宽带天线的设计
提出了一种适用于超宽带(UWB)的小而紧凑的微带馈电单极天线,该天线由矩形贴片和截断接平面组成。天线的紧凑尺寸为$\mathbf{26 mm\乘以32 mm\乘以0.762 mm}$,包括馈电机构。该天线印刷在Rogers衬底上,相对介电常数为2.2,制作简单,制造成本低。实测结果与仿真结果吻合较好,在电压驻波比小于2的情况下,天线的阻抗带宽为3.8 ~ 14.8 GHz。此外,良好的辐射方向图表明,所提出的天线非常适合集成在各种便携式设备中用于超宽带应用。
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