用于ka波段卫星通信的低轮廓宽带高效圆极化相控阵天线

2020 IEEE 3rd International Conference on Electronic Information and Communication Technology (ICEICT) Pub Date : 2020-11-13 DOI:10.1109/ICEICT51264.2020.9334250

Yang Dai, Feng Tan

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引用次数: 0

摘要

提出了一种用于ka波段卫星的宽带高效低轮廓圆极化相控阵天线。该天线采用了微带线和圆形贴片的公共接地结构，减小了外形，使天线易于集成。此外，互补的金属栅格和缺陷地有效地减少了单元之间的耦合，提高了天线的增益。同时，在天线阵中采用顺序旋转技术来扩大轴比带宽。天线轮廓为0.076λ0 (λ0为自由空间波长)。S11<-10 dB的阻抗带宽为15.8%，整个工作频带AR低于3dB。整个波段的辐射效率可达90%以上。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Wideband High-Efficiency Circularly Polarized Phased Array Antenna with Low Profile for Ka-Band Satellite Communication

This paper presents a wideband high-efficiency circularly polarized (CP) phased array antenna with low profile for Ka-band satellite. The antenna introduces a common ground structure for both microstrip line and circular patch to reduce the profile and make the antenna easily integration. In addition, complementary metal grids and defective ground effectively reduce the coupling between units to improve the gain of the antenna. At the same time, the sequential rotation technique is applied in the antenna array to expand the axial ratio bandwidth. The profile of the antenna is 0.076λ0 (λ0 is the wavelength in free space). The impedance bandwidth for S11<-10 dB is 15.8%, and the AR is below to 3dB in the whole operating band. The radiation efficiency can reach more 90% over the whole band.

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来源期刊

2020 IEEE 3rd International Conference on Electronic Information and Communication Technology (ICEICT)

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