A Reconfigurable Magneto-Electric Dipole Antenna Using Bent Cross-Dipole Feed for Polarization Diversity
A Reconfigurable Magneto-Electric Dipole Antenna Using Bent Cross-Dipole Feed for Polarization Diversity
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DOI：
10.1109/lawp.2016.2581259
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发表时间：
2017-06
影响因子：
4.2
通讯作者：
Fan Wu;K. Luk
中科院分区：
文献类型：
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作者：
Fan Wu;K. Luk
本文提出了一种单馈入宽带极化可重构磁电偶极天线。利用一个弯曲的交叉偶极子与一个p-i-n二极管插入到它的四个臂中的每一个来激励天线。通过控制四个p-i-n二极管的开/关状态，所提出的天线可以被重新配置为提供一对正交的线性极化。所提出的天线的原型设计，制造和测量。在1.86-2.35 GHz范围内，两种极化的重叠阻抗带宽（$S $11 < −14 dB或SWR <1.5）均为23.2%。该天线在整个工作频带内具有8 ± 0.6 dBi的稳定增益。详细的模拟和测量的反射系数，增益和辐射模式。
A single-feed wideband polarization-reconfigurable magneto-electric dipole antenna is presented in this letter. A bent cross dipole with one p-i-n diode inserted into each of its four arms is utilized to excite the antenna. The proposed antenna can be reconfigured to provide a pair of orthogonal linear polarizations by controlling the on /off states of four p-i-n diodes. A prototype of the proposed antenna is designed, fabricated, and measured. An overlapped impedance bandwidth ($S$ 11 < −14 dB or SWR <1.5) of 23.2% covering 1.86–2.35 GHz is achieved for both polarizations. The antenna shows a stable gain of 8 ± 0.6 dBi across the operating band. Details of the simulated and measured reflection coefficient, gain, and radiation patterns are presented.