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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >A CPW-fed uniplanar dual-band tri-polarization diversity antenna based on PIN diode for the wireless communication
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A CPW-fed uniplanar dual-band tri-polarization diversity antenna based on PIN diode for the wireless communication

机译：基于PIN二极管的CPW馈电单平面双频三极化分集天线用于无线通信

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摘要

In this paper, a coplanar waveguide (CPW)-fed dual-band uniplanar tri-polarization reconfigurable antenna based on the PIN diode switch is proposed. The proposed antenna can be reconfigured between the linear polarization (LP) and the circular polarization (CP) mode, including both the right-handed circular polarization and left-handed circular polarization simultaneously within the dual operating bands. The central frequencies of the bands are 2.63 and 4.42 GHz, respectively, and the overlapped operating bandwidth is 17.8 and 3.40%. The proposed reconfigurable antenna is a closed-slot antenna fed by the CPW transmission line and the reconfigurable mechanism is to regulate the T-shaped driven stub through switching the PIN diodes on and off. The scattering parameters, axial ratio, radiation pattern, gain, and the radiation efficiency of the proposed antenna are all investigated in the following. The optimized antenna has been fabricated to experimental test, the simulated and the measured results agree well with each other. The lower frequency band of the proposed antenna covers the 2.40 GHz WLAN specification and the upper band can be used for the 5 G communication (4.40-4.50 GHz); therefore it is suitable to be applied in the mobile wireless communication.
机译：提出了一种基于PIN二极管开关的共面波导馈电双频单面三极化可重构天线。所提出的天线可以在线性极化（LP）和圆极化（CP）模式之间重新配置，包括在双工作频带内同时包含右旋圆极化和左旋圆极化。频带的中心频率分别为2.63 GHz和4.42 GHz，重叠的工作带宽为17.8％和3.40％。所提出的可重构天线是由CPW传输线馈送的闭槽天线，可重构机制是通过打开和关闭PIN二极管来调节T形驱动短截线。下面，对所提出天线的散射参数，轴比，辐射方向图，增益和辐射效率进行了研究。优化后的天线已被制造用于实验测试，仿真结果与实测结果吻合良好。拟议天线的较低频段覆盖2.40 GHz WLAN规范，较高频段可用于5 G通信（4.40-4.50 GHz）；因此适用于移动无线通信。

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