Abstract: A communication device includes a main body, a mother board, a housing and a first antenna. The main body is formed with a rim. The mother board is arranged at a first side of the main body. The housing is mounted on the main body and configured to cover the mother board. An orthogonal projection of the housing onto the main body defines a covering range. The first antenna is electrically connected to the mother board and arranged along the rim of the main body. Wherein, at least one portion of the first antenna is located outside the covering range of the housing.

Abstract: An antenna of a communication device includes a metal frame, a metal back cover and a printed circuit board. The printed circuit board includes a first circuit block and a second circuit block electrically connected to the first circuit block. A first conductor is connected between a first part of the metal frame and a signal terminal of the first circuit block. A second conductor is connected between a second part of the metal frame and a ground terminal of the first circuit block. A third conductor is connected to a third part of the metal frame. A fourth conductor is connected to a ground terminal of the second circuit block, and at least one coupling gap is defined between the third conductor and the fourth conductor. A signal terminal of the second circuit block is electrically connected to a fourth part of the metal frame.

Abstract: An antenna of a communication device includes a metal frame, a metal back cover and a printed circuit board. The printed circuit board includes a first circuit block and a second circuit block electrically connected to the first circuit block. A first conductor is connected between a first part of the metal frame and a signal terminal of the first circuit block. A second conductor is connected between a second part of the metal frame and a ground terminal of the first circuit block. A third conductor is connected to a third part of the metal frame. A fourth conductor is connected to a ground terminal of the second circuit block, and at least one coupling gap is defined between the third conductor and the fourth conductor. A signal terminal of the second circuit block is electrically connected to a fourth part of the metal frame.

Abstract: A communication device comprises a front housing, a back cover, a main body, a display panel, a signal feed point, a ground point, an antenna and a conductor. The main body is located between the front housing and the back cover. The antenna is installed on the main body and corresponding to an adjacent edge of the display panel. The antenna comprises a first metal part and a second metal part. The first metal part is coupled to the signal feed point, and the second metal part is coupled to the ground point. A coupling gap is defined between the conductor and the antenna, and at least one part of the conductor corresponds to the display panel.

Abstract: A communication device comprises a front housing, a back cover, a main body, a display panel, a signal feed point, a ground point, an antenna and a conductor. The main body is located between the front housing and the back cover. The antenna is installed on the main body and corresponding to an adjacent edge of the display panel. The antenna comprises a first metal part and a second metal part. The first metal part is coupled to the signal feed point, and the second metal part is coupled to the ground point. A coupling gap is defined between the conductor and the antenna, and at least one part of the conductor corresponds to the display panel.

Abstract: The present invention relates to a communication device antenna, including a metal housing, a first antenna and a second antenna. The metal housing has a first lateral side and a second lateral side. The first antenna includes a first metal part, a second metal part, a third metal part and a fourth metal part. The third metal part is connected between the first and second metal parts, and adjacent to the first lateral side of the metal housing. The fourth metal part is connected to the metal housing. The second antenna includes a first metal part and a second metal part. The first metal part of the second antenna is connected to the signal feed point and the second metal part of the first antenna. The second metal part of the second antenna is connected to the ground point and the fourth metal part of the first antenna.

Abstract: The present invention relates to a communication device antenna including a metal housing and an excitation component. The metal housing has a first lateral side, a second lateral side and a connection side extended and connected between the first lateral side and the second lateral side. An opening is formed and located adjacent to the connection side. A coupling gap is defined between the excitation component and the connection side of the metal housing. The excitation component is connected to the signal feed point and the ground point. The excitation component is configured to perform electromagnetic energy excitation, such that the metal housing can be utilized as a radiation unit.

Abstract: The present invention relates to a communication device antenna, including a metal housing, an antenna and a conductor. The metal housing has a first lateral side and a second lateral side. The antenna includes a first metal part, a second metal part, a third metal part and a fourth metal part. The third metal part is extended and connected between the first metal part and the second metal part, and the third metal part is located adjacent to the first lateral side of the metal housing. The fourth metal part is connected to a ground point, and the fourth metal part is connected to the first metal part and the metal housing. The conductor is located adjacent to the second metal part of the antenna. A coupling gap is defined between the conductor and the second metal part. The conductor is connected to a signal feed point.

Abstract: A quick connecting device includes a first connector, a metallic mounting ring, a first electric cord, a second connector, a second electric cord, a metallic conductive plug, and an elastic member. Thus, the second exposed electric wires of the second electric cord is clamped by the conductive plug, and the first exposed electric wires of the first electric cord is clamped between the conductive plug and the mounting ring, so that the second electric cord is connected to the first electric cord exactly.

Abstract: A twin monopole antenna is disclosed. This twin monopole antenna comprises: a substrate having a first surface and a second surface; an upper ground plane that is located on the first surface of the substrate and comprises: a first ground plane, a second ground plane and a third ground plane; a lower ground plane that is located on the second surface of the substrate and comprises: a fourth ground plane; and an inverted-U shaped ground plane having a hollow rectangular surface; a first radiating line located on the first surface of the substrate, wherein a first included angle is located between the first radiating line and the second ground plane; and a second radiating line located on the first surface of the substrate, wherein a second included angle is located between the second radiating line and the second ground plane, and an interval between the first radiating line and the second radiating line.

Abstract: A twin monopole antenna is disclosed. This twin monopole antenna comprises: a substrate having a first surface and a second surface; an upper ground plane that is located on the first surface of the substrate and comprises: a first ground plane, a second ground plane and a third ground plane; a lower ground plane that is located on the second surface of the substrate and comprises: a fourth ground plane; and an inverted-U shaped ground plane having a hollow rectangular surface; a first radiating line located on the first surface of the substrate, wherein a first included angle is located between the first radiating line and the second ground plane; and a second radiating line located on the first surface of the substrate, wherein a second included angle is located between the second radiating line and the second ground plane, and an interval between the first radiating line and the second radiating line.