Patent ID: 6778140
Filing Date: 2004-08-17
Classification: H01Q

Abstract:
A patch horn antenna device operable in two different frequency bands comprising:a print circuit board including a control circuit of an wireless electronic product and a plurality of components for installation; a horn antenna formed on one side of the print circuit board, the horn antenna including a horn opening formed at one side, the opening having an angle formed between two oblique sides thereof, and an elongate recess extended inward from a corner of the angle; and a first patch line formed on the other side of the print circuit board, the first patch line being served as a feed transmission line of signal wave, the first patch line having one end coupled to the control circuit printed on the other side of the print circuit board and the other end extended substantially parallel with one side of the recess, turned 90 degrees to cross the recess, and turned 90 degrees again to extend substantially parallel with the other side of the recess.