| 摘要 |
PURPOSE:To miniaturize the plane antenna by arranging a reinforcement frame to the outside of the frame, forming the circuit board together with the frame and the reinforcing frame by bonding, fixing the frame to a ground conductor plate and removing the reinforcing frame. CONSTITUTION:The reinforcing frame 20 is placed at the outside of the frame 5 whose width is narrowed to bond the feeder circuit board 2, the frame 5 and the reinforcing frame 20 by means of the hot press. The formed feeder circuit board 2 is placed on the ground conductor plate 1 via the frame 5 and a pin 10a of a connector 10 is soldered (24) to the feeding point of the feeder circuit board 2. Then the radiation circuit board 3 formed to the frame 6 and the reinforcing frame 22 similarly is placed on the feeder circuit board 2 via the frame 6 and the ground conductor plate 1 and the frames 5, 6 are fixed by a pin 8. Then the surrounding ends of the feeder circuit board 2 and the radiation circuit board 3 is cut by the cutter or the like to remove the reinforcing frames 20, 22. Thus, the width of the frames themselves is narrowed and the entire dimension of the plane antenna is decreased.
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