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 te11 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 文摘:根據(jù)縫隙口面切向場(chǎng)的連續(xù)條件,采用解析數(shù)值法矩量法,對(duì)扇面波導(dǎo)寬壁上窄的斜縫進(jìn)行了計(jì)算,解得了磁流系數(shù)及其分布,并得到散射場(chǎng)、等效散射參量及等效阻抗等重要參數(shù).假定波導(dǎo)中僅有te11主模傳輸,在x波段計(jì)算了散射參量和歸一化等效串聯(lián)阻抗,給出計(jì)算結(jié)果,為縫隙天線和縫隙陣列設(shè)計(jì)提供了依據(jù)