圆柱形腔内由弯曲交叉偶极子组成的圆极化天线

2013 11th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services (TELSIKS) Pub Date : 2013-10-01 DOI:10.1109/TELSKS.2013.6704416

I. Radnović, A. Nesic, M. Ilic, D. Nešić

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引用次数: 0

摘要

提出了一种圆极化空腔背印天线。天线辐射元件是两个交叉的双弯曲偶极子，印刷在介电基片上，具有复杂的共轭阻抗。为了减小环境影响，天线被放置在金属圆柱腔内。通过使用双弯曲偶极子，天线的整体尺寸显著减小。对CBACP在5.9 GHz频段的工作进行了仿真和实现。仿真结果与实测结果吻合良好。此外，为了实现(a)最小轴比、(b)最大增益和孔径效率以及(c)更宽的轴比带宽(AR< 3 dB)，研究了空腔参数及其对天线特性的影响。

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Antenna with circular polarization composed of bent crossed dipoles in a cylindrical cavity

The paper presents cavity backed printed antenna with circular polarization (CBACP). The antenna radiating elements are two crossed double bent dipoles that are printed on the dielectric substrate and have complex conjugated impedances. In order to diminish environmental influences the antenna is placed in the metallic cylindrical cavity. By using double bent dipoles the overall antenna dimensions are significantly reduced. CBACP is simulated and realized for operation around 5.9 GHz. Simulated and measured results show good agreement. Furthermore, investigation of cavity parameters and their effect on antenna characteristics has been carried out in order to achieve (a) minimal axial ratio, (b) maximal gain and aperture efficiency and (c) broader axial ratio bandwidth (AR<;3 dB).

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来源期刊

2013 11th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services (TELSIKS)

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