Dual‐wideband dual‐polarized rhombic antenna array for base‐station applications
Dual‐wideband dual‐polarized rhombic antenna array for base‐station applications
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DOI：
10.1002/mop.33239
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发表时间：
2022-03
影响因子：
1.5
通讯作者：
L. Ye;Yuanpeng Li;Jian‐Feng Li;Zhenxin Hu;Gary Zhang;Xiu Yin Zhang
中科院分区：
文献类型：
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作者：
L. Ye;Yuanpeng Li;Jian‐Feng Li;Zhenxin Hu;Gary Zhang;Xiu Yin Zhang
提出了一种用于室内基站的窄波束、低旁瓣的紧凑型双宽带双极化天线阵。四个较高频段的偶极单元插入四个较低频段的菱形排列的偶极单元。每个频段的偶极元件由两个幅值和相位相等的1-4功率分配器激励。利用该方案，在双频段上获得了稳定的窄带辐射方向图，在水平面和垂直面上都具有低副瓣电平。为了验证，设计了适用于VSWR<；1.5的双宽带菱形天线阵，带宽分别为49.3%(0.64-1.06 GHz)和52.3%(1.61-2.75 GHz)。它具有稳定的辐射方向图，3分贝波束宽度约33°，在水平面和垂直面上的低旁瓣电平均小于−22分贝。
A compact dual‐wideband dual‐polarized antenna array with a narrow beam and low side‐lobe level for indoor base‐station applications is presented. Four higher‐band dipole elements are inserted inside four lower‐band rhombic‐arranged dipole elements. Dipole elements for each band are excited by two 1‐to‐4 power dividers with equal magnitude and phase. By using this scheme, stable narrow radiation patterns with low side‐lobe levels both in the horizontal and vertical planes are obtained over the dual‐frequency bands. For verification, a dual‐wideband rhombic antenna array with bandwidths of 49.3% (0.64–1.06 GHz) and 52.3% (1.61–2.75 GHz) for VSWR < 1.5 is designed. It has a stable radiation pattern with 3‐dB beamwidths of around 33° and low side‐lobe levels of less than −22 dB both in the horizontal and vertical planes.