PHASED-ARRAY ANTENNA ELEMENT Russian patent published in 2005 - IPC

FIELD: radio engineering.

SUBSTANCE: proposed antenna element that can be used for microwave antenna systems incorporating ferrite phase shifters to control selection of desired polarization in any desired sequence has integrated phase shifter and polarization selector switch, its base being one common metallized ferrite rod of similar or different round section through its length. It is provided with circular polarization phase shifter with control coil and ferrite magnetic cores symmetrically installed on round-section length of metallized ferrite rod forming round-section waveguide connected through adapter, minimum λ/8 long, to controlled polarization selector switch that includes other length of round-section metallized ferrite rod; it also mounts magnetic cores in the form of ring sections (two semi-rings or four quarter-rings) provided with slots for locking control coil of polarization selector switch. Among characteristic features of antenna element design is that it has no choke slits in metallized layer of ferrite rod which greatly facilitates its manufacture and reduces its cost. Antenna element is compact in design and easy to operate. It can operate with controlled polarization switch in any desired sequence which makes it suited to operate efficiently in modern radars.

EFFECT: reduced mass, size, cost, and power requirement, low loss and high speed of antenna element.

9 cl, 8 dwg