Abstract: An assembled wearable electronic device includes a first body, a second body and an engaging assembly. The first body has a primary system for providing the independent operation of the first body and producing a related first data. The second body has a secondary system and a fixing assembly. The secondary system is for providing the independent operation of the second body and producing a related second data. The engaging assembly is disposed at one of the first and second bodies. When the engaging assembly is located at a first position, the first and second bodies contact each other to be combined through the engaging assembly. When the engaging assembly moves to a second position, the first and second bodies are configured to be separated from each other. When the first and second bodies are connected to each other, the second data is read by the primary system.

Abstract: An electronic device and an antenna reception tuning method thereof are provided. The electronic device includes a first main body, a second main body, a sensing unit, and a processing unit. The second main body, including an antenna and a matching unit, is disposed on the first main body through a hinge and adapted for being opened or closed relative to the first main body. The sensing unit is disposed on the electronic device, adapted for detecting a distance between the first main body and the second main body, and generates a control signal according to the distance, wherein the distance includes an angle and an open/close state between the first and the second main bodies. The processing unit is electrically connected to the sensing unit and the matching unit, and adjusts the matching unit according to the received control signal.

Abstract: A multi-band antenna including a metal plate and a radiation element is provided. The metal plate is electrically connected to a ground plane and has a slot. A resonant path is formed by the edges of the slot. The radiation element has a feeding point and is located in the slot of the metal plate. A feeding signal from the radiation element is coupled to the metal plate, and the multi-band antenna excites a resonant mode by the resonant path of the metal plate, so as to receive or transmit a first radio frequency signal.

Abstract: A multi-frequency antenna comprises a first conductor, a second conductor, a grounding member, and a third conductor. The first and second conductors are respectively arranged on a first plane and a second plane. The grounding member is arranged on a third plane existing between the first and second planes. The third conductor is connected with the first conductor and arranged on the first plane also. The first and third conductors are respectively coupled to the radiated signals of the second conductor to form a first electrical path and a second electrical path. The first electrical path and the second electrical path have a phase difference of 180 degrees. The present invention features the additional third conductor. The third conductor and the first conductor are coupled to the radiated signals of the second conductor to generate opposite-phase signals. Thus are counterbalanced the interferences among the antenna systems of an identical frequency band.

Abstract: An electronic device including a first casing, a second casing, at least one first connecting unit and at least one feeding unit is provided. The first casing includes a conductive material. The second casing includes a conductive material. The first casing and the second casing are conducted with each other through the first connecting unit. The feeding unit is electrically connected to the first casing and has a feeding point and a capacitor component, wherein the capacitor component is connected with the feeding point, and the electronic device forms an antenna structure with the first casing, the second casing, the first connecting unit and the feeding unit and transmits an electromagnetic signal via the feeding unit.

Abstract: An antenna including a ground plane, a radiation element and a frequency selective structure is provided. The ground plane has a reflection area, and a first side edge of the reflection area is aligned with an edge of the ground plane. The radiation element is disposed near the first side edge of the reflection area and is operated at a resonant frequency. A width of the reflection area is related to a wavelength of the resonant frequency of the radiation element. The frequency selective structure is disposed on the ground plane along side edges of the reflection area except the first side edge and is adapted to reflect an electromagnetic wave from the radiation element.

Abstract: An electronic device and an antenna reception tuning method thereof are provided. The electronic device includes a first main body, a second main body, a sensing unit, and a processing unit. The second main body, including an antenna and a matching unit, is disposed on the first main body through a hinge and adapted for being opened or closed relative to the first main body. The sensing unit is disposed on the electronic device, adapted for detecting a distance between the first main body and the second main body, and generates a control signal according to the distance, wherein the distance includes an angle and an open/close state between the first and the second main bodies. The processing unit is electrically connected to the sensing unit and the matching unit, and adjusts the matching unit according to the received control signal.

Abstract: An electronic device including a first casing, a second casing, at least one first connecting unit and at least one feeding unit is provided. The first casing includes a conductive material. The second casing includes a conductive material. The first casing and the second casing are conducted with each other through the first connecting unit. The feeding unit is electrically connected to the first casing and the second casing, wherein the electronic device forms an antenna structure with the first casing, the second casing, the first connecting unit and the feeding unit and transmits an electromagnetic signal via the feeding unit.

Abstract: An electronic device including a first shell, a second shell, a connecting unit, an antenna unit and an isolating unit is provided. A material of the first shell includes a conductive material. A material of the second shell includes a conductive material. The connecting unit includes two connecting portions connected to the first shell and the second shell. The antenna unit includes a first antenna and a second antenna. The first antenna and the second antenna correspond to the two connecting portions respectively and are disposed on the first shell or the second shell. The isolating unit is disposed between the first antenna and the second antenna and includes at least one isolating conductor. The isolating conductor is connected to the first shell and extends toward the second shell, such that the first shell and the second shell form a conducting circuit through the isolating conductor.

Abstract: A multi-frequency antenna comprises a radiation conductor, a connection interface device, a ground plane, a feeder cable, and an extension conductor. The radiation conductor further comprises a feeder member and a connection member extending serpentinely and far away from the feeder member and having a terminal. One lateral side of the connection interface device is connected to the terminal of the connection member. Another lateral side of the connection interface device is arranged on the ground plane and electrically connected to the ground plane. The present invention adopts a loop-antenna design. In the present invention, a radiation conductor is used to excite a low-frequency resonant mode and a first high-frequency resonant mode, and an extension conductor is used to excite a second high-frequency resonant mode, whereby the antenna system covers several operation frequency bands and features broadband.