Handheld electronic communication device with metallic keypad
The present invention relates to a handheld electronic communication device comprising, in a housing ( 1 ), a printed circuit board ( 2 ) for holding electrical components and providing several connection points, and a keypad ( 5 ) extending parallel to said printed circuit board ( 2 ) and including a keypad user's interface ( 5 c ), made of a metallic sheet, said device further comprising a radio communication module for transmitting and/or receiving signals, said radio communication module being connected to a radiating element via an antenna's feeding point on printed circuit board ( 2 ). According to the invention, said metallic sheet is provided with at least a connection area ( 5 e ) electrically connected to said antenna's feeding point of said printed circuit board ( 2 ), and said metallic sheet further comprises a slot ( 8 ), said keypad user's interface ( 5 c ) constituting then said radiating element whose working frequencies depend on the shape and the size of said slot.
1 . Handheld electronic communication device comprising, in a housing ( 1 ), a printed circuit board ( 2 ) for holding electrical components and providing several connection points, and a keypad ( 5 ) extending parallel to said printed circuit board ( 2 ) and including a keypad user's interface ( 5 c ), made of a metallic sheet, said device further comprising a radio communication module for transmitting and/or receiving signals, said radio communication module being connected to a radiating element via an antenna's feeding point on printed circuit board ( 2 ), characterized in that said metallic sheet is provided with at least a connection area ( 5 e ) electrically connected to said antenna's feeding point of said printed circuit board ( 2 ), and in that said metallic sheet further comprises a slot ( 8 ), said keypad user's interface ( 5 c ) constituting then said radiating element whose working frequencies depend on the shape and the size of said slot.
2 . Handheld electronic communication device according to claim 1 , characterized in that said slot ( 8 ) is designed to separate metallic sheet ( 5 c ) into two electrically isolated parts, a first part provided with said connection area ( 5 e ) electrically connected to said antenna's feeding point of said printed circuit board ( 2 ), and a second part provided with a second connection area ( 5 d ) electrically connected to a ground connection of said printed circuit board ( 2 ) for constituting a shield against electrostatic discharge phenomena.