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This paper proposed a novel design method to acquire high gain for coaxial collinear sleeve dipole array antenna. Based on the analysis of S21 of one element and two elements of the antenna, the current magnitude and phase on each element distribute equally. Thus high gain and good omnidirectional performance on the horizontal plane is obtained with the equilibrium of the energy on each element. Details...
A novel method of radiation pattern shaped of dipole-disk antenna by adding a hemisphere conductor is proposed in this paper. The improved dipole-disk antenna has identical beamwidths in E- and H-plane, while its profile does not increase. A model of this antenna is built, stimulated and optimized by a commercial software Ansoft HFSS. Numerical analysis based on stimulation results is made and the...
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