PHASED ANTENNA ARRAY ELEMENT Russian patent published in 2012 - IPC H01Q21/00 

FIELD: physics, radio.

SUBSTANCE: invention relates to elements of microwave and EHF wireless devices. The disclosed phased antenna array element operates on circularly polarised waves. The element includes the following, arranged in series in a housing: a dielectric radiator, a radiator waveguide, a matching waveguide, dielectric insert which is inserted into the matching waveguide, a Faraday-type waveguide ferrite phase shifter with magnetic memory and a reflector. The phase shifter consists of a ferrite bar with a square section on whose lateral surface there is a first current-conducting coating, a magnetisation winding which is wound around the bar and a magnetic conductor encircling the winding. The magnetic conductor is in form of clamps, each lying on each face of the ferrite bar. The reflector has the shape of the cross-section of the ferrite bar and is in form of a section of a below-cutoff waveguide which is open on one end, having a first current-conducting coating on the lateral surface which is common with the ferrite bar. The housing is in form of a thin-walled case. A cut, which is coated with a dielectric strip, is made along the longitudinal axis of one of the faces of the ferrite bar and the reflector in the first current-conducting coating. A second current-conducting coating whose width satisfies a certain ratio is deposited on the outer surface of the strip symmetrically with respect to the cut.

EFFECT: design of a high-technology, small-size element of a phased antenna array with low loss, high-speed operation and low control energy.

9 cl, 3 dwg