Patent ID: 7318268

Claim:
A method for manufacturing flat-plate antenna comprising the steps of: forming a conductive flat-plate having a slit portion with width proportional to frequency band width, a radiating element portion disposed one side of said slit portion, and a ground portion disposed other side of said slit portion, said slit portion is formed by press punching through a lead-frame; laminating over said lead-frame with a resinous film; forming a first connecting hole through which a part of said lead-frame of said radiating element portion is exposed, and forming a second connecting hole through which a part of said lead-frame of said radiating element portion is exposed; press punching said laminated lead-frame including said slit portion, said radiating element portion and said ground portion; and connecting a first conductor of a power supply line with a part of said radiating element portion exposed through said first connecting hole, and connecting a second conductor of a power supply line with a part of said ground portion exposed through said second connecting hole.