Abstract: A steerable antenna allows transmission of an electromagnetic signal between a fixed feed source or an image thereof and a target moving within an antenna coverage region. The peak gain of the signal beam varies as a function of the target position following a desired signal gain profile. The antenna includes a reflector defining a reflector surface for reflecting the signal between the feed source or its image and the target. The reflector surface defines a focal point, a center point and a normal axis perpendicular to the reflector surface at the center point. The normal axis and the feed axis intersecting the center point and the feed source or its image define a common offset plane. An elevation rotary actuator rotates the reflector about a rotation axis perpendicular to the offset plane adjacent to the center point so that the antenna provides a nominal signal gain profile over the coverage region.