ANTENNA UNIT Russian patent published in 2012 - IPC H01Q11/08 

FIELD: radio engineering.

SUBSTANCE: antenna unit comprises a left-wound spiral and a right-wound spiral installed above a metal screen, a phase changer, two switches, a matching ring, a dielectric frame and a splitter, to one of outputs of which the right-wound spiral is connected, and to the other output via the phase changer the left-wound spiral is connected, at the same time both spirals and the matching ring are installed on the dielectric frame.

EFFECT: development of a compact antenna unit with a variable vector of polarisation and improved polarisation properties.

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