Patent attributes
A method of making a flat-plate antenna having thinner shape and excellent productivity, reducing labor for installation in an electrical apparatus or on a wall, and exhibiting desired antenna characteristics stably. The method includes forming a conductive flat-plate having a slit portion, a radiating element portion, and a ground portion formed by press punching a lead-frame. The method also includes laminating over the lead-frame with a resinous film. The method further includes forming first and second connecting holes through which a part of the lead-frame is exposed. The method also includes press punching the laminated lead-frame including the slit portion, the radiating element portion and the ground portion. The method still further includes connecting first and second conductors of a power supply line with the radiating element portion and the ground portion, respectively.