DIFFERENTIAL MICROWAVE PHASE SHIFTER Russian patent published in 2005 - IPC

FIELD: radio engineering; basic components of various microwave devices.

SUBSTANCE: proposed differential microwave phase shifter has phase-shifting channel on single stub-supported transmission line and communication line; single transmission line is made in the form of odd number of alternating sections of homogeneous transmission lines interconnected in symmetrical cascade with wave impedances p and p₀; lengths of sections having wave impedance p are monotonously increasing and those of sections whose wave impedance is p₀ are monotonously reducing toward center of single line, stub being inserted in middle of central section and its length being shorter than that of central section; p₀ equals wave impedance of inlet lines.

EFFECT: enhanced precision of phase shift in wide frequency band during reduction of maximal standing-wave ratio at phase-shifting channel input.

1 cl, 3 dwg