Abstract: An electronic device having a radiation part and a metallic frame is provided. The radiation part is L-shaped, and includes a feeding branch and an open branch. The metallic frame includes a first metallic part and a second metallic part. The first metallic part is L-shaped, wherein a first side of the first metallic part is near the open branch of the radiation part, and a first gap exists therebetween. The second metallic part is L-shaped, wherein an open terminal of a first side of the second metallic part is aligned with an open terminal of the first side of the first metallic part, and a second gap exists therebetween. The radiation part and the metallic frame forms an antenna to transceive a plurality of radio frequency signals.

Abstract: A wireless communication device including an antenna element and a resonant divider is provided. The antenna element has a resonant path so that an operation frequency of the antenna element covers a first band and a second band. The resonant divider is electrically connected to the antenna element and provides a current path connected in parallel with a part of the resonant path. The resonant divider delays a current flowing through the current path so that the antenna element is incapable of covering an interval band between the first band and the second band.

Abstract: An electronic device having a radiation part and a metallic frame is provided. The radiation part is L-shaped, and includes a feeding branch and an open branch. The metallic frame includes a first metallic part and a second metallic part. The first metallic part is L-shaped, wherein a first side of the first metallic part is near the open branch of the radiation part, and a first gap exists therebetween. The second metallic part is L-shaped, wherein an open terminal of a first side of the second metallic part is aligned with an open terminal of the first side of the first metallic part, and a second gap exists therebetween. The radiation part and the metallic frame forms an antenna to transceive a plurality of radio frequency signals.

Abstract: A wireless communication device including an antenna element and a resonant divider is provided. The antenna element has a resonant path so that an operation frequency of the antenna element covers a first band and a second band. The resonant divider is electrically connected to the antenna element and provides a current path connected in parallel with a part of the resonant path. The resonant divider delays a current flowing through the current path so that the antenna element is incapable of covering an interval band between the first band and the second band.

Abstract: A multi-band antenna including a ground plane, a radiation element, a first extension element and a second extension element is provided. The radiation element includes a first portion and a second portion electrically connected with each other. The first portion has a feeding point. The first and the second extension elements are extended from the ground plane. The first extension element and the first portion are spaced by a first coupling distance. The second extension element and the second portion are spaced by a second coupling distance. The multi-band antenna is operated in a first band through the radiation element. A feeding signal from the radiation element excites the first and the second extension elements through the first and the second coupling distances so that the multi-band antenna is operated further in a second band and a third band.

Abstract: A mobile device includes a dielectric substrate, a ground plane, an RF (Radio Frequency) module, an antenna structure, a bypass inductor, matching circuits, and a switch circuit. The antenna structure includes a first radiation element and a second radiation element. The first end of the first radiation element is connected to the RF module, and the second end of the first radiation element is open. The second radiation element is separate from the first radiation element. The first end of the second radiation element is open and adjacent to the first radiation element, and the second end of the second radiation element is connected through the bypass inductor to the ground plane. The switch circuit selects one of the matching circuits according to a control signal. The second end of the second radiation element is further connected through the selected matching circuit to the ground plane.

Abstract: An intelligent interactive TV remote-control system includes: a server, a TV device, a set-top box device, and an intelligent interactive remote-control device. The server is used for storing multimedia data and providing usage authentication service. The TV device is provided for playing multimedia data. The set-top box device is connected to the server and the TV device for downloading multimedia data from the server and outputting the same to the TV device for display. The intelligent interactive remote-control device is started for being connected to the server to perform usage authentication service thereby matching with the set-top-box device. When matching is successful, the intelligent interactive remote-control device is connected to the set-top box device and an interactive remote-control interface is generated corresponding to a playing window outputted from the set-top box device and displayed on the TV device for remotely controlling the set-top box device.

Abstract: An antenna includes a first antenna portion, a second antenna portion, a third antenna portion, a feed portion, and a ground portion. The first antenna portion perpendicularly connects to the feed portion and the ground portion. The second antenna portion connects to the first antenna portion. The third antenna portion connects to the feed portion. The first antenna portion and the second antenna portion are both located on a plane perpendicular to the feed portion. The feed portion, the ground portion, and the third antenna portion are coplanar.

Abstract: An antenna module includes a support and an antenna. The support includes an upper surface and has a through hole defined in a middle of the upper surface. The antenna includes a feed unit, a first radiator unit, and a second radiator unit. One end of the feed unit is positioned on the upper surface. The other end of the feed unit passes through the through hole, and extends and attaches to a surface opposite to the upper surface. The first radiator unit and the second radiator unit are both connected to the end of the feed unit positioned on the upper surface, and both extend away from the feed unit.

Abstract: An antenna module includes a support and an antenna. The support includes an upper surface and has a through hole defined in a middle of the upper surface. The antenna includes a feed unit, a first radiator unit, and a second radiator unit. One end of the feed unit is positioned on the upper surface. The other end of the feed unit passes through the through hole, and extends and attaches to a surface opposite to the upper surface. The first radiator unit and the second radiator unit are both connected to the end of the feed unit positioned on the upper surface, and both extend away from the feed unit.

Abstract: An antenna includes a first antenna portion, a second antenna portion, a third antenna portion, a feed portion, and a ground portion. The first antenna portion perpendicularly connects to the feed portion and the ground portion. The second antenna portion connects to the first antenna portion. The third antenna portion connects to the feed portion. The first antenna portion and the second antenna portion are both located on a plane perpendicular to the feed portion. The feed portion, the ground portion, and the third antenna portion are coplanar.