The invention relates to antenna technology and is intended for use in a communication equipment as a single broadband transducer element and as a low-profile array antenna. The technical result - expanding the bandwidth of an antenna system with a stable gain of the antenna. For this purpose, the central part of the proposed antenna radiator (3) is disposed in a plane parallel to the plane of the screen (2), above the H-shaped slit, and two opposite sides are curved upwardly so that in the emitter section (3) has the shape of a trapezoid. The height of the non-emissive edges of the radiator (3) over the screen (2) is less than three tenths of a wavelength at the center frequency of the radiation, the width of the radiator (3) is not less than four-tenths of the wavelength of evanescent edge length less than half the wavelength, the angle of bending the sides of the radiator ( 3) is in the range 30-60 °, the width of the center side parallel to the screen (2) of the radiant element (3) is not more than one tenth of the wavelength, and coupling slit dimensions do not exceed 0,3λ × 0,3λ, where λ, - the length wave at the center frequency.
展开▼
