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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Compact triband slotted printed monopole antenna for WLAN and WiMAX applications
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Compact triband slotted printed monopole antenna for WLAN and WiMAX applications

机译：紧凑的三频缝隙印刷单极天线，用于WLAN和WiMAX应用

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摘要

This work presents a triband antenna, which is compact, low profile, and covers thebandwidth requirements for WLAN and WiMAX applications. The proposed designis a modified and miniaturized printed monopole antenna. It consists of bevelingrectangular patch, a Pi-shape slot element, and an inverted-L slot element to achieveresonance in three bands. The physical size of the antenna is 27.5 × 20 mm~2 whilethe electrical size is 0.26 λ_0 × 0.23 λ_0 at the lower operating frequency which is verycompact as compared to other triband designs. It works in three bands, that is, 2.37to 2.52 GHz, 3.35 to 3.90 GHz, and 4.97 to 7.85 GHz with |S_(11)| < − 10 dB withinthese operating bands. The prototype of the proposed miniaturized antenna has beenfabricated and the measured results are provided for validation. Antenna performanceis studied in terms of input match, gain, radiation efficiency, surface currentdistributions, and radiation pattern. The antenna shows a nearly omnidirectionalradiation pattern with peak efficiency of 90% and acceptable gain of 4 dBi over thethree operating bands of WLAN and WiMAX. The prototype of the antenna is fabricated,and simulated results have been verified through measurements.
机译：这项工作提出了一种紧凑，薄型的三频天线，涵盖了WLAN和WiMAX应用的带宽要求。提出的设计是一种改进的小型化印刷单极天线。它由斜角矩形贴片，Pi形缝隙元件和倒L形缝隙元件组成，以实现三个频段的共振。天线的物理尺寸为27.5×20 mm〜2，而在较低的工作频率下，电气尺寸为0.26λ_0×0.23λ_0，与其他三频设计相比非常紧凑。 || _（11）|可以在三个频带中工作，即2.37至2.52 GHz，3.35至3.90 GHz和4.97至7.85 GHz。在这些工作频带内<-10 dB。所提出的微型天线的原型已经被制造出来，并且所提供的测量结果用于验证。根据输入匹配，增益，辐射效率，表面电流分布和辐射方向图研究天线性能。该天线显示了几乎全向的辐射方向图，在WLAN和WiMAX的三个工作频段上，其峰值效率为90％，可接受的增益为4 dBi。制作了天线原型，并通过测量验证了仿真结果。

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