Patent ID: 7439914

Claim:
An antenna unit comprising: a first antenna having a first radiating conductor defining a first side, a second side opposite to said first side and opposite ends, a second radiating conductor extending from said first side of said first radiating conductor, a third radiating conductor and a fourth radiating conductor extending from both ends of said second side of said first radiating conductor respectively, said second radiating conductor and said third radiating conductor being at the same level, the length of said fourth radiating conductor being longer than the length of said third radiating conductor, a parasitic element defining opposite ends, wherein one end of said parasitic element confronts the free end of said third radiating conductor, a first trap circuit connecting said fourth radiating conductor and said parasitic element, a first feeding point arranged at one end of said first radiating conductor which is near said fourth radiating conductor; a second antenna spaced from said first antenna, the second antenna having a third side, a fourth side connected to said third side to form an angle, a stair-shape side connecting said third side and said fourth side to form a first protrusion and a second protrusion, a slot opened on the central area of said dual band antenna, a second feeding point arranged at said first protrusion; and a ground portion spaced from said first radiating conductor of said first antenna and said first protrusion of said second antenna.