The invention relates to a dual-polarized antenna including: a microstrip substrate (1), which, on a first surface, is covered by a metallization layer (M) and, on a surface opposite the first surface, by two microstrip lines; a dielectric resonator (2) having the shape of a rotationally symmetrical cylinder attached to an etching (4) provided in the substrate, a first end of a first of the two microstrip lines forming a first port of the antenna and a second end of the second microstrip line forming a second port of the antenna; and an electrically conductive linear element (3) positioned in contact with the dielectric resonator and connected to a second end of the first line (L1), via a hole (5) formed in the substrate (1), a second end of the second line (L2) being substantially vertical to the etching.
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