Low loss phase shifter based on piezo-controlled layered dielectric structure

Piezo-controlled microwave devices

“…They are elaborated, in the first place, for area of hydroacoustics. In some more recent works [8,9], these actuators are planned for microwave tunable device implementation. The choice between these actuators depends on the design and estimated parameters of the device.…”

“…A new type of electrically controlled phase shifter for centimeter and millimeter waves has been recently proposed and tested in [9]. Phase control is realized by dielectric plate transposition above the CPW (Fig.…”

“…Waveguide experiment with piezo-controlled phase shifter, matched at 8-12 GHz and filled by various low-loss ceramics: (a) used design, (b) effective dielectric constant versus gap size, and (c) specific (per 1 cm) phase shift depending on gap size andactuator voltage[9].…”