WIDEBAND ANTENNA SYSTEM WITH MULTIPLE ANTENNAS AND AT LEAST ONE PARASITIC ELEMENT

摘要

A wideband antenna system with multiple antennas and at least one parasitic element is disclosed. In an exemplary design, an apparatus includes a first antenna (310), a second antenna (320), and a parasitic element (330). The first antenna (310) has a shape of an open- ended loop with two ends that overlap and are separated by a gap. The second antenna (320) may also have a shape of an open-ended loop with two ends that overlap and are separated by a gap. The parasitic element (330) is located between the first and second antennas. The first and second antennas (310, 320) may be placed side by side on a board, located at either the top end or the bottom end of a wireless device, and/or formed on opposite sides (e.g., the front and back sides) of the board. The parasitic element (330) may be formed on a plane that is perpendicular to the plane on which the first and second antennas (310, 320) are formed.