DIGITAL PHASE SHIFTER Russian patent published in 1995 - IPC

FIELD: radio engineering. SUBSTANCE: phase shifter has section of strip transmission line and two switching components. First switching component is connected in series with first section of signal conductor and leads of second section of signal conductor, whose length is greater than that of first section, are connected on either side of switching component. Second switching component is connected to short-circuited switching stub. Additional section of conductor shorter in length than λ_d/4 is inserted between midpoint of second section and second switching component to which short-circuited and open-circuited stubs of total length λ_d/4. are connected. EFFECT: reduced difference in insertion loss in two phase states. 4 cl, 1 dwg