PHASE CHANGER Russian patent published in 2014 - IPC H01P1/18 

FIELD: radio engineering, communication.

SUBSTANCE: phase changer, having a dielectric substrate on which is deposited a ferroelectric film and a four-slot line, having outer waveguide electrodes and inner control electrodes, is formed, wherein on the part of the dielectric substrate on which the ferroelectric film deposited, there are contact areas for applying voltage, areas for continuation of the waveguide electrodes and coplanar lines which connect the control electrodes of the slot line with the contact areas, wherein the centre control electrode is connected through a quarter-wave section to a first contact area, which is electrically connected to areas for continuation of the waveguide electrodes, and each control electrode neighbouring the centre electrode is connected to a second contact area through a series connection of two quarter-wave sections, parameters of the first of which are equal to parameters of the quarter-wave section connected to the centre control electrode, and parameters of the second quarter-wave section are selected based on the condition of maximum reflection of the operating signal.

EFFECT: design of a reflecting-type phase changer in which the control voltage supply circuit has minimal effect on its electrodynamic properties.

2 cl, 3 dwg