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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >A novel single-feed reconfigurable antenna for polarization and frequency diversity
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A novel single-feed reconfigurable antenna for polarization and frequency diversity

机译：一种新颖的单馈可重构天线，用于极化和频率分集

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摘要

A novel dual-band single-feed reconfigurable annular-ring slot antenna with polarization diversity is proposed. This antenna has the ability to switch frequency bands and polarization at the same time whereas applying a simple structure. It consists of two concentric circular slots and two tuning stubs on one side of the substrate and a 50 Omega microstrip feed line and two stubs on the other side. The proposed antenna can be switched between two resonant frequencies, 2.4 GHz (WLAN) and 3.5 GHz (Wimax). Furthermore, it can be switched between linear polarization (LP), left-hand circular polarization (LHCP), and right-hand circular polarization (RHCP) at the first frequency band, LHCP and RHCP at the second band. All these capabilities are achieved by applying only five PIN diodes on both sides of the substrate. Simulation and experimental results indicate that the proposed antenna demonstrates a good impedance bandwidth at the two frequency bands and satisfactory radiation pattern in five different states.
机译：提出了一种新型的极化分集双频单馈可重构环形环缝天线。该天线具有在同时应用简单结构的同时切换频带和极化的能力。它由两个同心的圆形狭槽和两个位于基材一侧的调谐短截线以及一条50 Omega微带馈线和另一侧的两个短截线组成。所建议的天线可以在两个谐振频率2.4 GHz（WLAN）和3.5 GHz（Wimax）之间切换。此外，它可以在第一频带的线性极化（LP），左旋圆极化（LHCP）和右旋圆极化（RHCP）之间，在第二频带的LHCP和RHCP之间切换。通过在基板的两侧仅应用五个PIN二极管即可实现所有这些功能。仿真和实验结果表明，所提出的天线在两个频带上显示出良好的阻抗带宽，并且在五个不同状态下具有令人满意的辐射方向图。

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