Characteristics of the Inclined Narrow-Slot on a Sectoral Waveguide
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摘要: 根据缝隙口面切向场的连续条件,采用解析数值法——矩量法,对扇面波导宽壁上窄的斜缝进行了计算,解得了磁流系数及其分布,并得到散射场、等效散射参量及等效阻抗等重要参数.假定波导中仅有TE-11主模传输,在X波段计算了散射参量和归一化等效串联阻抗,给出计算结果,为缝隙天线和缝隙阵列设计提供了依据.Abstract: According to the continuative condition of the tangential fields on the slot aperture which is the inclined narrow-slot on the broadwall of a sectoral waveguide,the moment method is used to calculate the magnetic current coefficient and distribution.Then the scattering field,the scattering parameter and the equivalent impedance are obtained.Leting only the TE-11 dominant mode propagates in the waveguide,the scattering parameters and the normalized equivalent series impedance in the X-band are computed.The basis disigned the slot antenna and the slot array is offered.
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Key words:
- waveguide /
- slot antennas /
- electromagnetic fields /
- radiation /
- sectoral waveguide /
- scattering parameter
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