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Design of a Broadband Radome-Enclosed Dual-Polarization Antenna Array Covering Sub-6 GHz Band with Differential Feeding
International Journal of Antennas and Propagation ( IF 1.5 ) Pub Date : 2020-12-01 , DOI: 10.1155/2020/8881317 Zhirong An 1 , Mang He 1
International Journal of Antennas and Propagation ( IF 1.5 ) Pub Date : 2020-12-01 , DOI: 10.1155/2020/8881317 Zhirong An 1 , Mang He 1
Affiliation
A differentially fed dual-polarized antenna with low cross-polarization is proposed for sub-6 GHz applications. The main patch is fed through two pairs of symmetrical ports, and annular-ring slits are etched around the feedings. The broadband 180° phase shifter provides a stable differential feeding structure, and a 1 mm thick radome with a parasitic patch printed on its inner surface is utilized to expand the impedance bandwidth. The impedance bandwidth of the proposed antenna ranges from 3.3 to 6.0 GHz, covering the entire sub-6 GHz band. The 4-element antenna array features low profile, wide bandwidth, low cross-polarization level, and stable gain over the entire operating band. The prototype of the antenna array is fabricated and measured, and the design is well validated by experimental results.
中文翻译:
宽带馈线封闭双极化天线阵列覆盖低于6 GHz频带的差分馈电设计
对于低于6 GHz的应用,提出了一种具有低交叉极化的差分馈电双极化天线。主贴片通过两对对称端口馈入,并且在馈入周围蚀刻出环形环缝。宽带180 °移相器提供了稳定的差分馈电结构,并利用一个1毫米厚的天线罩(其内表面印有寄生贴片)来扩展阻抗带宽。拟议天线的阻抗带宽范围为3.3至6.0 GHz,覆盖整个6 GHz以下频带。4元素天线阵列具有低剖面,宽带宽,低交叉极化水平以及在整个工作频带内稳定的增益。天线阵列的原型被制造和测量,并通过实验结果很好地验证了设计。
更新日期:2020-12-01
中文翻译:
宽带馈线封闭双极化天线阵列覆盖低于6 GHz频带的差分馈电设计
对于低于6 GHz的应用,提出了一种具有低交叉极化的差分馈电双极化天线。主贴片通过两对对称端口馈入,并且在馈入周围蚀刻出环形环缝。宽带180 °移相器提供了稳定的差分馈电结构,并利用一个1毫米厚的天线罩(其内表面印有寄生贴片)来扩展阻抗带宽。拟议天线的阻抗带宽范围为3.3至6.0 GHz,覆盖整个6 GHz以下频带。4元素天线阵列具有低剖面,宽带宽,低交叉极化水平以及在整个工作频带内稳定的增益。天线阵列的原型被制造和测量,并通过实验结果很好地验证了设计。