角截断AMC反射面轴比增强宽带圆极化孔径天线

2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI:10.1109/IMWS-AMP.2015.7324935

Baolin Cao, Danyun Li, Yuan Zhao, Hao Wang, Yong Huang

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引用次数: 1

摘要

本文提出了一种用于宽带圆极化应用的角截断人工磁导体(CT-AMC)反射面背背八角形孔径(OSA)天线。通过引入CT-AMC反射器，使OSA天线的双向辐射变为单向辐射，轴比带宽和增益明显增加。此外，电磁模拟和天线性能的测量结果在整个感兴趣的频率范围内一致。测量结果表明:S11 <时，3db轴比(AR)带宽提高到31.6%，阻抗带宽提高到38.3%;-10，在5.0 GHz频率下实现8.0 dBi增益。

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Axial ratio enhanced wideband circularly polarized aperture antenna with corner-truncated AMC reflector

In this paper, a corner-truncated artificial magnetic conductor (CT-AMC) reflector backed octagonal-shaped aperture (OSA) antenna is proposed for wideband circularly polarized application. By introducing a CT-AMC reflector, a bidirectional radiation of OSA antenna is changed to unidirectional radiation, and the axial ratio bandwidth and gain increased obviously. Moreover, electromagnetic simulations and measurements of antenna performances agree well over the whole frequency range of interest. The measured results show that 3 dB axial ratio (AR) bandwidth increase to 31.6 % with impedance bandwidth of 38.3% for |S11|<; -10, and the gain of 8.0 dBi is achieved at the frequency of 5.0 GHz.

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来源期刊

2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)

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