Transmission line and circuit that restrain coupling between facing based on artificial surface etc. are from excimer ripples

The utility model discloses a transmission line based on couplings between the suppression of excimer ripples is faced such as artificial surface, including the dielectric substrate, the tow sides of dielectric substrate are provided with two sheetmetals respectively, and each sheetmetal includes a plurality of waveguide units, lie in and become inversion symmetries with two sheetmetals in the one side, from arbitrary port of sheetmetal orientation to the sheetmetal mid point, at least including the changeover portion that provides sequentially, asymptotic section and periodic structure section, at the changeover portion, the depth of groove of waveguide unit from zero step up to predetermined value, in asymptotic section, the depth of groove of waveguide unit is the predetermined value, and the waveguide is close to to the diad gradually, and in the periodic structure section, the depth of groove of waveguide unit is predetermined value and equal to the distance of diad, lie in not the sheetmetal on the coplanar, the position of waveguide unit corresponds opening opposite direction from top to bottom. The utility model provides a mutual coupling problem between neighbour, has strengthened the interference killing feature, and has saved circuit area, can make the syntype circuit, fine application prospect has.