The present invention relates to an active element having a CPW (Coplanar Waveguide) structure and outputting a data signal and an active element for outputting a data signal, And a plurality of parasitic elements disposed around the active element, wherein the active element comprises a first, a second substrate, a transmission line patterned on each of the first and second substrates, And a ground line spaced apart from the transmission line on each of the first and second substrates.
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