FIELD: radio engineering. SUBSTANCE: invention refers to superhigh frequency equipment and is intended for elimination of spurious coupling between crossed transmission lines in pattern-forming circuits and other intricate SHF devices incorporating various elements. Specific feature of crossed strip lines coming in the form of two identical strip conductors which length between crossing points with strip conductors of another strip line is equal to half-length of medium length of wave of operational range lies in presence of air spaces in dielectric substrates in points of crossing of strip conductors. Ends of strip conductor of first strip line bordering on air space are connected by straight line sector of conductor and ends of strip line conductor of second strip line bordering on air space are linked by two bent conductors placed in parallel. One of them is positioned above straight line sector of strip conductor and the other one in located beneath it and in symmetry with first conductor. Such arrangement secures absence of higher types of waves and diminishes capacitive coupling between crossed conductors. Mating elements of first strip line come in the form of sections of narrowed strip conductors in sections between air spaces and between branching of strip line and air space. These elements of second strip line have shape of sections of expanded strip conductors over same sections. EFFECT: provision for decoupling and matching of crossed strip lines on frequencies of centimeter range of length of waves. 2 cl, 3 dwg
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Authors
Dates
2002-01-27—Published
2000-08-09—Filed