PROBLEM TO BE SOLVED: To provide a donor antenna for achieving high gain, high directivity, and enhanced voltage standing wave ratio.SOLUTION: A donor antenna 100 includes: a base plate 102 having a top surface and a bottom surface; a dipole antenna 101 array in which dipole antennas 101 are arranged in grid pattern, the dipole antennas being folded and mounted on the top surface of the base plate 102 by a plastic holder; and a prescribed feed network on the bottom surface for collectively supplying power to the dipole antenna 101 array by a connector. Each of the folded dipole antennas 101 includes a substrate having a symmetrical conductive band disposed on both sides of the substrate that forms an excitation arm and a ground arm of the folded dipole antenna.
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