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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Metamaterial inspired CPW-fed compact antenna for ultrawide band applications
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Metamaterial inspired CPW-fed compact antenna for ultrawide band applications

机译：超材料激发了CPW馈电的紧凑型天线，适用于超宽带应用

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摘要

A small size, planar and co-planar waveguide fed metamaterial inspired antenna is proposed for ultra-wideband (UWB) application. The main radiating element consists of three split-ring resonators (SRR) and placed along one axis. Moreover, coplanar waveguide (CPW)-fed line along with modified ground plane is used to improve the impedance matching. The physical size of proposed antenna is 25(W) x 22 (L) x 1.6 (H) mm(3). The CPW-fed metamaterial inspired antenna provides bandwidth of 10.4 GHz from 3.1 to 13.5 GHz based on the 3:1 (voltage standing wave ratio [VSWR] 2). Over the range of UWB frequency, peak realized gain varies from 2.5 to 4 dBi. The proposed antenna provides omnidrectional radiation patterns. Further, fidelity factor of the proposed antenna is also calculated and measured. The calculated fidelity factor is suitable for UWB applications. Finally, prototype of the antenna is developed and tested using network analyzer. The simulated and measured results are in good agreement.
机译：提出了一种小型，平面和共面波导馈电超材料激发天线，用于超宽带（UWB）应用。主辐射元件由三个开口环谐振器（SRR）组成，并沿一个轴放置。此外，共面波导（CPW）馈线与修改后的接地平面一起用于改善阻抗匹配。建议的天线的物理尺寸为25（W）x 22（L）x 1.6（H）mm（3）。由CPW馈电的超材料激发天线基于3：1（电压驻波比[VSWR] <2）提供从3.1到13.5 GHz的10.4 GHz带宽。在UWB频率范围内，峰值实现增益在2.5至4 dBi之间变化。所提出的天线提供全向辐射图。此外，还计算并测量了所建议天线的保真度。计算出的保真度系数适用于UWB应用。最后，使用网络分析仪开发并测试了天线原型。仿真和测量结果吻合良好。

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