deng yaolin, liu qingxiang, li xiangqiang, et al. Optimization of L-band helical array antenna fed from radial waveguide[J]. High Power Laser and Particle Beams, 2009, 21.
Citation:
deng yaolin, liu qingxiang, li xiangqiang, et al. Optimization of L-band helical array antenna fed from radial waveguide[J]. High Power Laser and Particle Beams, 2009, 21.
deng yaolin, liu qingxiang, li xiangqiang, et al. Optimization of L-band helical array antenna fed from radial waveguide[J]. High Power Laser and Particle Beams, 2009, 21.
Citation:
deng yaolin, liu qingxiang, li xiangqiang, et al. Optimization of L-band helical array antenna fed from radial waveguide[J]. High Power Laser and Particle Beams, 2009, 21.
This paper describes a new antenna for realizing the directional radiation of helical array antenna fed from radial waveguide. The configuration parameters of the element and the layout of array antenna are optimized with the purpose of enhancing the aperture efficiency of the antenna. A circular array antenna composed of 6 elements with a frequency band of 1.5 GHz to 1.7 GHz is designed and simulated. The numerical simulation shows that at 1.57 GHz, the aperture efficiency reaches 99%, and the axial ratio at the normal direction is 1.15. In the range of 1.5 GHz to 1.7 GHz, the aperture efficiency is greater than 97%, the axial ratio is less than 1.35.
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