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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >Design of compact dual-frequency antenna with bandwidth enhancement
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Design of compact dual-frequency antenna with bandwidth enhancement

机译：具有带宽增加的紧凑型双频天线的设计

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摘要

A compact dual-frequency antenna with enhanced bandwidth is proposed in this paper. Dual-frequency operation is realized by cutting a slot in the elliptical patch, and bandwidth enhancement is achieved by using a partial ground plane. Compared with the conventional half-wave antenna, the antenna has a compact size of 24 x 20 mm(2), which equals to 0.38 lambda(1) x 0.31 lambda(1) ( l1, the guided wavelength at the first resonant frequency). The dual-frequency antenna with a partial rectangle ground and a partial arc-shaped ground is investigated for impedance matching. Simulated results indicate that the antenna with a partial arc-shaped ground can obtain a larger bandwidth for two bands than that with a partial rectangle ground. Experimental results show that the antenna with a partial arc-shaped ground can operate in 2.4 and 5 GHz bands, which covers the 2.4, 5.2 and 5.8 GHz for wireless local area network. The impedance bandwidths of two bands are 9.5 and 13.6%, respectively. Also, good radiation performances have been achieved at two bands.
机译：本文提出了一种具有增强带宽的紧凑型双频天线。通过在椭圆形贴片中切一个缝隙可实现双频工作，并通过使用局部接地层来实现带宽增强。与传统的半波天线相比，该天线的紧凑尺寸为24 x 20 mm（2），等于0.38 lambda（1）x 0.31 lambda（1）（l1，第一谐振频率下的引导波长） 。研究了具有部分矩形接地和部分弧形接地的双频天线的阻抗匹配。仿真结果表明，具有部分弧形接地的天线比具有部分矩形接地的天线在两个频带上可以获得更大的带宽。实验结果表明，具有部分弧形接地的天线可以在2.4 GHz和5 GHz频段工作，该频段覆盖无线局域网的2.4 GHz，5.2 GHz和5.8 GHz。两个频带的阻抗带宽分别为9.5和13.6％。而且，在两个频带上已经获得了良好的辐射性能。

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