Patent ID: 7205950

Claim:
A radio wave lens antenna comprising: a hemispherical radio wave lens for focusing radio wave beams; a reflective plate attached to a half-cut surface of the sphere of the radio wave lens for reflecting radio waves incoming from the sky or radiated toward targets; and primary feeds positioned at arbitrary radio wave focus points of the radio wave lens for transmitting or receiving the radio waves, wherein the primary feeds include at least one pair of primary feeds installed closely and each of the two closely disposed primary feeds includes a dielectric loaded waveguide antenna where a dielectric body is loaded at an end opening of a waveguide, a center of the end of the dielectric body being located off the extension of the waveguide's center axis and the centers of the ends of the dielectric bodies of the two closely disposed primary feeds being disposed at off-centered positions such that the centers are remotely spaced apart from each other.