Patent ID: 6781561
Filing Date: 2004-08-24
Classification: H01Q

Abstract:
An antenna for a tyre pressure detector, the antenna mounted on an RF circuit board of the tyre pressure detector and comprising:a seat (10) having a bottom plate (11), a post (12) uprightly formed on the bottom plate (11), an aperture (14) defined through the bottom plate (11), a hole (15) defined through the post (12) and coaxial with the aperture (14), and a plurality of positioning members evenly formed at an outer periphery of the post (12); a wire (40) electrically connected with the RF circuit board and coiled round the post (12) and positioned in the positioning members; a cover (20) having a body (21) provided outside the seat (10), a central portion (22) extending in the hole (15), and an opening (23) defined through the central portion (22) and aligned with the aperture (14); and a bolt (30) inserted through the opening (23) and the aperture (14) to fasten the antenna on the RF circuit board.