A dual polarized aperture coupled circular patch antenna using a C-shaped coupling slot
A dual polarized aperture coupled circular patch antenna using a C-shaped coupling slot
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DOI：
10.1109/tap.2003.820947
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发表时间：
2003-12
影响因子：
5.7
通讯作者：
S. Padhi;N. Karmakar;C. Law;S. Aditya
中科院分区：
文献类型：
--
作者：
S. Padhi;N. Karmakar;C. Law;S. Aditya
介绍了一种C波段双线极化口径耦合圆形微带贴片天线的设计与研制。该天线采用了对称和非对称耦合槽的新配置。研究了正交馈线间的隔离度和天线轴比随耦合槽位置的变化，实现了宽带隔离度和轴比。原型天线产生7.6 dBi的峰值增益，70/spl度/ 3 dB的波束宽度，25 dB的交叉极化水平和两个端口之间的隔离优于28 dB。与外部正交混合耦合器连接到两个正交馈线，天线产量3 dB轴比带宽超过30%，在5.8 GHz。
The design and development of a dual linearly polarized aperture coupled circular microstrip patch antenna at C-band are presented. The antenna uses a novel configuration of symmetric and asymmetric coupling slots. Variations in isolation between orthogonal feedlines and antenna axial ratio with the position of coupling slots are studied and broadband isolation and axial ratio are achieved. The prototype antenna yields 7.6 dBi peak gain, 70/spl deg/ 3-dB beam width, 25 dB cross-polarization levels and an isolation better than 28 dB between the two ports. With an external quadrature hybrid coupler connected to the two orthogonal feedlines, the antenna yields 3-dB axial ratio bandwidth of more than 30% at 5.8 GHz.