The specification discloses an automotive satellite antenna assembly adapted for placement within an automotive vehicle passenger compartment under the vehicle glass, such as the windshield, the rear window, a panoramic roof, or a sunroof. The assembly includes a satellite antenna, a ground plane electrically connected to the antenna, and a choke ring electrically connected to the ground plane and defining a conductive cavity in which the antenna is located. The dimensions of the ground plane are smaller than the wavelength of any signal within the frequency range of the antenna. Preferably the antenna, the ground plane, and the choke ring have substantially the same shape and are concentric with one another.