A transmitting-receiving-separated dual-polarization antenna comprising: a conductor substrate, a patch antenna configured for transmitting in a transmitting band (3-T) and a patch antenna configured for receiving in a receiving band (3-R) installed on a conductor substrate, the patch antenna for the transmitting band and the patch antenna for the receiving band having a predetermined spacing there between, wherein each of the patch antenna for the transmitting band and the patch antenna for the receiving band comprises: a top dielectric substrate, a middle dielectric substrate, and a bottom dielectric substrate, which are arranged in a stacked manner; an upper-stage ground conductor constituted by a metal foil adhered to an upper surface of the middle dielectric substrate; a lower-stage ground conductor constituted by a metal foil adhered to a lower surface of the bottom dielectric substrate; a feeding conductor configured for feeding a horizontally polarized wave and a feeding conductor configured for feeding a vertically polarized wave, each constituted by a metal foil adhered to an upper surface of the bottom dielectric substrate; a feed slot formed on the upper-stage ground conductor; a patch constituted by a metal foil adhered to an upper surface of the upper dielectric substrate and electromagnetically coupled with the feeding conductor for a horizontally polarized wave and the feeding conductor for a vertically polarized wave via the feed slot; and an electromagnetic shielding member (23; 29) connected with the upper-stage ground conductor and the lower-stage ground conductor in a state in which the electromagnetic shielding member is located around the feeding conductor for a horizontally polarized wave and the feeding conductor for a vertically polarized wave, and wherein the top, middle, and bottom dielectric substrates of the patch antenna for the transmitting band, and the top, middle, and bottom dielectric substrates of the patch antenna for the receiving band, are provided in a manner separated from one another. a patch antenna configured for transmitting in a transmitting band (3-T) and a patch antenna configured for receiving in a receiving band (3-R) installed on a conductor substrate, the patch antenna for the transmitting band and the patch antenna for the receiving band having a predetermined spacing there between, wherein each of the patch antenna for the transmitting band and the patch antenna for the receiving band comprises: a top dielectric substrate, a middle dielectric substrate, and a bottom dielectric substrate, which are arranged in a stacked manner; an upper-stage ground conductor constituted by a metal foil adhered to an upper surface of the middle dielectric substrate; a lower-stage ground conductor constituted by a metal foil adhered to a lower surface of the bottom dielectric substrate; a feeding conductor configured for feeding a horizontally polarized wave and a feeding conductor configured for feeding a vertically polarized wave, each constituted by a metal foil adhered to an upper surface of the bottom dielectric substrate; a feed slot formed on the upper-stage ground conductor; a patch constituted by a metal foil adhered to an upper surface of the upper dielectric substrate and electromagnetically coupled with the feeding conductor for a horizontally polarized wave and the feeding conductor for a vertically polarized wave via the feed slot; and an electromagnetic shielding member (23; 29) connected with the upper-stage ground conductor and the lower-stage ground conductor in a state in which the electromagnetic shielding member is located around the feeding conductor for a horizontally polarized wave and the feeding conductor for a vertically polarized wave, and a top dielectric substrate, a middle dielectric substrate, and a bottom dielectric substrate, which are arranged in a stacked manner; an upper-stage ground conductor constituted by a metal foil adhered to an upper surface of the middle dielectric substrate; a lower-stage ground conductor constituted by a metal foil adhered to a lower surface of the bottom dielectric substrate; a feeding conductor configured for feeding a horizontally polarized wave and a feeding conductor configured for feeding a vertically polarized wave, each constituted by a metal foil adhered to an upper surface of the bottom dielectric substrate; a feed slot formed on the upper-stage ground conductor; a patch constituted by a metal foil adhered to an upper surface of the upper dielectric substrate and electromagnetically coupled with the feeding conductor for a horizontally polarized wave and the feeding conductor for a vertically polarized wave via the feed slot; and an electromagnetic shielding member (23; 29) connected with the upper-stage ground conductor and the lower-stage ground conductor in a state in which the electromagnetic shielding member is located around the feeding conductor for a horizontally polarized wave and the feeding conductor for a vertically polarized wave, and wherein the top, middle, and bottom dielectric substrates of the patch antenna for the transmitting band, and the top, middle, and bottom dielectric substrates of the patch antenna for the receiving band, are provided in a manner separated from one another.