Multiple polarized dish antenna

A multiple polarized dish antenna, comprising:

• a main dish reflector comprising an inner concave surface;
• and
• a multiple polarized antenna source at least partially disposed beside the inner concave surface, wherein the inner concave surface of the main dish reflector reflects a radiation energy emitted by the multiple polarized antenna source, and the multiple polarized antenna source comprises:
• a carrier having a conductive layer;
• at least one radiator disposed above the carrier, wherein a resonance gap is between the at least one radiator and the conductive layer;
• a plurality of feeding portions disposed beside the at least one radiator, wherein a projection of each of the feeding portions on a plane where the corresponding radiator is located is at least partially overlapped with the radiator, each of the feeding portions is insulated from the conductive layer, and a number of the feeding portions is greater than 2, the multiple polarized dish antenna resonates at an antenna frequency band, and the resonance gap is 0.08 times a wavelength to 0.5 times the wavelength of the antenna frequency band;
• and
• a hollow waveguide member surrounding at least a portion of the multiple polarized antenna source, a diameter of the hollow waveguide member is between 0.5 times a wavelength and 5 times the wavelength of the antenna frequency band, and a height of the hollow waveguide member is between 0.5 times the wavelength and 5 times the wavelength of the antenna frequency band.