Folding screen electronic device and antenna device used therefor

This case discloses a folding screen electronic device and its antenna device. The folding screen electronic device includes a metal connecting shaft to connect the first metal frame and the second metal frame, so that the first metal frame and the second metal frame can be unfolded or folded through the metal connecting shaft. The antenna device is arranged on the first metal frame, the second metal frame and the metal connecting shaft.In the antenna unit,A first breakpoint is arranged on the first metal frame,The first metal frame between the first breakpoint and the metal connecting shaft is used as the first radiation part;A second breakpoint is arranged on the second metal frame,Making the second metal frame system located between the second breakpoint and the metal connecting shaft as the second radiation part;A third breakpoint is arranged on the metal connecting rotating shaft,The metal connecting rotating shaft extending outwards at the third breakpoint is electrically connected with the first radiation part and the second radiation part;A matching circuit is electrically connected between the first radiation part and a signal feed source,A first aperture tuner is electrically connected to the second radiation part.本案揭露一種折疊屏電子裝置及其使用之天線裝置，折疊屏電子裝置包含一金屬連接轉軸連接**金屬框及第二金屬框，使**金屬框與第二金屬框透過金屬連接轉軸展開或折疊，天線裝置設置於**金屬框、第二金屬框及金屬連接轉軸上。在天線裝置中，一**斷點設置在**金屬框上，使位於**斷點與金屬連接轉軸之間的**金屬框係作為**輻射部；一第二斷點設置在第二金屬框上，使位於第二斷點與金屬連接轉軸之間的第二金屬框係作為第二輻射部；一第三斷點設置在金屬連接轉軸上，使位於第三斷點向外延伸的金屬連接轉軸電性連接**輻射部及第二輻射部；一匹配電路電性連接在**輻射部及一訊號饋入源之間，一**孔徑諧調器電性連接至第二輻射部。