球面共形阿基米德螺旋天线的仿真与分析

IEEE International Conference on Wireless Communications, Networking and Information Security Pub Date : 1900-01-01 DOI:10.1109/WCINS.2010.5541740

Lizhong Song

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Simulation and analysis of a spherical conformal Archimedean spiral antenna

This paper discussed the working performances of a kind of miniature spherical conformal Archimedean antenna. At first, a miniature planar Archimedean spiral antenna is modeled, then it is projected onto the surface of a dielectric sphere and the conformal Archimedean spiral antenna is formed. The proposed antenna model is simulated and the simulation results indicate that the simulated antenna has still ultra wide band (UWB) performance. The diameter of dielectric sphere is 82 millimeters and the relative permittivity is 2.2. For the working frequency range from 1GHz to 12GHz, the average voltage standing wave ratio (VSWR) is about 2 and the gain is more than 3dBi. The simulated antenna has approximately circular polarization characteristics within the frequency range from 2GHz to 12GHz. The discussed antenna basically maintains the UWB performances of the corresponding planar Archimedean spiral antenna and can be applied in some special cases such as UWB radar and communication systems.

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IEEE International Conference on Wireless Communications, Networking and Information Security

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