TWO-CHANNEL QUADRIFILAR SPIRAL ANTENNA Russian patent published in 2022 - IPC H01Q9/04 

FIELD: antenna technology.

SUBSTANCE: invention relates to antenna technology and serves as an antenna of a satellite navigation receiver. The expected result is achieved by the fact that in the proposed two-channel quadrifilar spiral antenna, the power supply circuit is made in the form of two antiphase power dividers into two channels and a quadrature bridge, the side arms of the antiphase power dividers into two channels form the signal outputs of the power supply circuit, and the side arms of each of the antiphase power dividers into two channels are shifted around the axis of symmetry by 180°, the central arms of the power dividers into two channels are connected to the outputs of the quadrature bridge, and its inputs form the inputs of the two-channel quadrifilar spiral antenna.

EFFECT: extension of the operating range of the antenna position angles to the full range of 0-180° and an increase in the signal-to-noise ratio at the antenna output when operating in the receiving mode.

1 cl, 15 dwg