ANTENNA GRID OF ELLIPTIC POLARIZATION Russian patent published in 2017 - IPC H01Q21/00 

FIELD: radio engineering, communication.

SUBSTANCE: antenna contains four identical symmetrical vibrators mounted on the mast support and tilted at the same angle with respect to the plane. Each symmetrical vibrator contains a radiator, a balun device and a coaxial cable. The emitter is made of two identical coaxial conductors, between which there is a gap. The symmetrical device is made in the form of a short-circuited two-wire line and includes two identical parallel conductors that are connected on one side to the conductors of the radiator in the gap, and on the other side are combined by a shorting third conductor that is connected to the mast. The coaxial cable is connected by its external conductor to one of the conductors of the radiator in the gap, and its internal conductor is connected to the second conductor of the radiator in the gap. An additional L-shaped conductor is inserted into each symmetrical vibrator, which is located between the parallel conductors of the two-wire line. The long arm of the additional L-shaped conductor is oriented along the two-wire line. Between the one end of the long arm of the additional L-shaped conductor and the short-circuiting conductor of the two-wire line there is a gap. The second end of the long arm of the additional L-shaped conductor is connected to one of the parallel conductors of the two-wire line by means of a short arm of an additional L-shaped conductor.

EFFECT: achievement of a small level of oscillations in the antenna pattern of the antenna array with elliptical polarization in the horizontal plane while providing a low level of the standing wave coefficient for the voltage at the antenna input.

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