Antenna and antenna arrangement

An antenna comprising:

• a coil element comprising a core element and coil wound around the core element, said core element being arranged along a longitudinal direction and having a first front surface and a second front surface,
• a first metallic plate element arranged on a first side of the core element, wherein said first metallic plate element extends with its first end in said longitudinal direction beyond the first front surface of the core element and is arranged with its second end in said longitudinal direction adjacent the core element,
• a second metallic plate element arranged on a second side of the core element opposite said second side, wherein said second metallic plate element extends with its first end in said longitudinal direction beyond the second front surface of the core element and is arranged with its second end in said longitudinal direction adjacent the core element,
• a first terminal and a second terminal, both connected to the coil, and
• a third terminal connected to the first metallic plate element and a fourth terminal connected to the second metallic plate element,
• wherein the first metallic plate element and the second metallic plate element each have the shape of a triangle or an isosceles trapezoid,
• the first metallic plate element and the second metallic plate element being oriented to have bases of their respective triangular or isosceles trapezoid shapes furthest from a center of the core element along the longitudinal direction, and
• wherein the first metallic plate element and the second metallic plate element are mirror symmetric with respect to a symmetry plane that is perpendicular to the longitudinal direction.