DIRECTIONAL ANTENNA FOR GENERATING AND RECEIVING ELECTROMAGNETIC FIELD OF LINEAR POLARIZATION WITH HIGH CROSS-POLARIZATION ISOLATION IN TWO WIDE RADIO FREQUENCY RANGES Russian patent published in 2024 - IPC H01Q21/29 

FIELD: antenna equipment.

SUBSTANCE: invention relates to antenna engineering, particularly to microstrip antennas. Disclosed is a directional antenna for generating and receiving an electromagnetic field of linear polarization with high cross-polarization isolation in two wide radio frequency ranges, containing a broadband radiator of the lower sub-range in the form of a rectangular metal active radiator with a resonance size of 0.5λ_max, which is located above a metal screen with size of 0.8λ_max×0.8λ_max, at height of 0.035λ_max, characterized in that at the resonant sides of the active radiator there are passive arc-shaped elements with a cut-out middle part; power supply of active radiator is performed by means of broadband asymmetric strip line, rectangular passive radiators with resonance size of 0.5λ_min are located above the lower sub-range radiator at height of 0.05λ_min; for excitation of passive radiators of the upper sub-range in the radiator of the lower sub-range, a slit line is cut out above the attachment point of the supply line of the antenna.

EFFECT: simplified design, increased compactness and reliability.

8 cl, 10 dwg