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发明公开
CN107946765A 一种加载引向器的高增益Vivaldi阵列天线 审中-实审

一种加载引向器的高增益Vivaldi阵列天线
摘要：
本发明涉及天线技术领域，尤其涉及一种加载引向器的高增益Vivaldi阵列天线，包括微带SIW转换结构、基于SIW的一分八路功分器和八个Vivaldi天线单元，微带SIW转换结构将由微带线馈入的电磁波转换为SIW传输段的电磁波；微带SIW转换结构包括微带线、梯形微带渐变线、金属地和SIW传输段；基于SIW的一分八路功分器包括金属层和感性金属通孔，Vivaldi天线单元包括Vivaldi辐射单元、椭圆形金属贴片和半椭圆形介质基板。本发明可以覆盖39.5-46GHz频段，并在原有阵列天线的基础上，在所覆盖频段内提高天线增益1dB以上。
摘要（英）：

The invention relates to the technical field of antennas, and particularly relates to a high-gain Vivaldi array antenna loaded with a director. The high-gain Vivaldi array antenna comprises a microstrip SIW conversion structure, an SIW-based one-to-eight power divider and eight Vivaldi antenna units. The microstrip SIW conversion structure converts the electromagnetic waves fed in by a microstripline into the electromagnetic waves of the SIW transmission band. The microstrip SIW conversion structure comprises the microstrip line, a trapezoid microstrip transition line, a metal ground and theSIW transmission band. The SIW-based one-to-eight power divider comprises a metal layer and inductive metal through holes. Each Vivaldi antenna unit comprises a Vivaldi radiation unit, an elliptical metal patch and a semi-elliptical dielectric substrate. The 39.5-46GHz frequency band can be covered and more than 1dB of the antenna gain can be enhanced within the frequency band coverage on the basis of the original array antennas.

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