An antenna of a radio apparatus, the directional pattern of which can be altered controllably. The antenna comprises at least one conductive element, additional from the viewpoint of the basic operation of the antenna, for shaping the directional pattern of the antenna. Such a conductive element (330,...http://www.google.com.au/patents/US20030189523?utm_source=gb-gplus-sharePatent US20030189523 - Antenna with variable directional pattern
