Abstract: A mobile device includes a metal housing and an antenna structure. A ground plane and a ground branch form at least a portion of the metal housing. The ground branch is coupled to the ground plane. A slot is formed between the ground branch and the ground plane. A circuit element is coupled to the ground branch and the ground plane. The antenna structure is formed by the ground branch. The antenna structure is excited by a signal source.

Abstract: A wireless communication device that has a circuit board, an RF signal module, a capacitive touch-sensing component, or a functional component, and an antenna component is provided. The touch-sensing signal module is disposed on the circuit board. The capacitive touch-sensing component includes a sensing layer and a ground layer. The sensing layer is electrically connected to the touch-sensing signal module. The antenna component includes a feed point and a radiating body. The feed point is disposed on the ground layer and is electrically connected to the RF single module. The radiating body incorporates at least parts of the ground layer. Alternatively, the feed point is disposed on the sensing layer, and the radiating body incorporates at least parts of the sensing layer. Therefore, the radiating body is incorporated into the sensing layer or ground layer of the capacitive touch-sensing component and can save accommodating space.

Abstract: A mobile device includes a system circuit board, a metal frame, a first feeding element, a second feeding element, and an RF (Radio Frequency) module. The system circuit board includes a system ground plane. The metal frame includes a first portion and a second portion. The metal frame has a first cut point positioned between the first portion and the second portion. The first feeding element is directly or indirectly electrically connected to the first portion. A first antenna structure is formed by the first feeding element and the first portion. The second feeding element is directly or indirectly electrically connected to the second portion. A second antenna structure is formed by the second feeding element and the second portion. The RF module is electrically coupled to the first feeding element and the second feeding element, so as to excite the first antenna structure and second antenna structure.

Abstract: A mobile device includes a first circuit board, a metal frame, an extension radiation element, an electronic component, a second circuit board, and an RF (Radio Frequency) module. The first circuit board includes a system ground plane. The metal frame includes a first portion coupled to the system ground plane. A clearance region is formed between the first portion and the system ground plane. The first portion and the extension radiation element are both coupled to a feeding point. An antenna structure is formed by the first portion and the extension radiation element. The second circuit board is coupled to the electronic component. The electronic component and the second circuit board are both adjacent to the first portion. The RF module is coupled to the feeding point, so as to excite the antenna structure.

Abstract: A wireless communication device is provided. The wireless communication device includes a housing, a circuit board, a radio frequency module and an antenna. The housing has a frame and a back cover to define a receiving space. The circuit board is disposed in the receiving space, and defines a clearance area from the housing in the receiving space. The circuit board includes a ground terminal, a first feeding point, and a second feeding point. The antenna includes at least one metal conductor coupled to the first feeding point and the second feeding point, respectively, to provide a low frequency resonant path, a first middle frequency resonant path, a second middle frequency resonant path and a high frequency resonant path.

Abstract: A mobile device includes a ground element, a radiation element, a first short-circuited element, a second short-circuited element, and a switch element. The radiation element has a feeding point, a fixed grounding point, and a switchable grounding point. The fixed grounding point is coupled through the first short-circuited element to the ground element. The switchable grounding point is coupled through the second short-circuited element and the switch element to the ground element. An antenna structure is formed by the radiation element, the first short-circuited element, the second short-circuited element, and the switch element.

Abstract: A wireless communication device that has a circuit board, an RF signal module, a capacitive touch-sensing component, or a functional component, and an antenna component is provided. The touch-sensing signal module is disposed on the circuit board. The capacitive touch-sensing component includes a sensing layer and a ground layer. The sensing layer is electrically connected to the touch-sensing signal module. The antenna component includes a feed point and a radiating body. The feed point is disposed on the ground layer and is electrically connected to the RF single module. The radiating body incorporates at least parts of the ground layer. Alternatively, the feed point is disposed on the sensing layer, and the radiating body incorporates at least parts of the sensing layer. Therefore, the radiating body is incorporated into the sensing layer or ground layer of the capacitive touch-sensing component and can save accommodating space.

Abstract: A wireless communication device that has a circuit board, an RF signal module, a capacitive touch-sensing component and an antenna component is provided. The touch-sensing signal module is disposed on the circuit board. The capacitive touch-sensing component includes a sensing layer and a ground layer. The sensing layer is electrically connected to the touch-sensing signal module. The antenna component includes a feed point and a radiating body. The feed point is disposed on the ground layer and is electrically connected to the RF single module. The radiating body incorporates at least parts of the ground layer. Alternatively, the feed point is disposed on the sensing layer, and the radiating body incorporates at least parts of the sensing layer. Therefore, the radiating body is incorporated into the sensing layer or ground layer of the capacitive touch-sensing component and can save accommodating space.

Abstract: An antenna device, including a circuit board, electronic components, a functional component module, an antenna module and a feed line, is provided. The electronic components are disposed on the circuit board and include a microprocessor and a wireless communication chip. The functional component module includes a carrier and a metal member disposed on the carrier. The antenna module includes a feed point, a ground point and a radiator, the feed and ground points are disposed on the carrier and electrically connected to both sides of the metal member respectively, and the ground point is electrically connected to the ground layer of the circuit board. The radiator includes at least a part of the metal member, while the feed line can transmit a wireless signal to the feed point to feed into the radiator. Therefore, the metal member can serve as the radiator to conserve the space of accommodating another radiator.

Abstract: A portable electronic device including a battery, a metal element, a control circuit and a plurality of impedance elements is provided. The battery is disposed in a carrier. The metal element receives a feeding signal through a feeding point to generate at least one radio-frequency signal. An orthogonal projection of the metal element on the carrier is overlapped with an orthogonal projection of the battery on the carrier. The control circuit is configured to control the battery so that a plurality of operation signals are transmitted between the battery and the control circuit. The plurality of impedance elements are electrically connected between the battery and the control circuit, and the plurality of impedance elements transmit the plurality of operation signals and block the at least one radio-frequency signal.

Abstract: A mobile device includes a metal housing and an antenna structure. A ground plane and a ground branch form at least a portion of the metal housing. The ground branch is coupled to the ground plane. A slot is formed between the ground branch and the ground plane. A circuit element is coupled to the ground branch and the ground plane. The antenna structure is formed by the ground branch. The antenna structure is excited by a signal source.

Abstract: A mobile device includes a ground plane, a ground branch, a supporting element, and a circuit element. The ground branch is coupled to the ground plane. A slot is formed between the ground branch and the ground plane. The supporting element is positioned above the ground branch, and a vertical projection of the supporting element at least partially overlaps the ground branch. The circuit element is coupled between the ground branch and the ground plane. A first antenna structure is formed by the ground branch. The first antenna structure is excited by a first signal source. A second antenna structure is disposed on the supporting element. The second antenna structure is excited by a second signal source.

Abstract: A communication system includes a first antenna, a second antenna, a first transceiver, a second transceiver, and a phase and power distribution transform circuit. The phase and power distribution transform circuit is coupled between the first antenna, the second antenna, the first transceiver, and the second transceiver. The phase and power distribution transform circuit is configured to adjust the phase and power of each signal from the first antenna, the second antenna, the first transceiver, and/or the second transceiver, thereby improving the communication quality of the communication system.

Abstract: A mobile device includes a ground plane, a ground branch, a supporting element, and a circuit element. The ground branch is coupled to the ground plane. A slot is formed between the ground branch and the ground plane. The supporting element is positioned above the ground branch, and a vertical projection of the supporting element at least partially overlaps the ground branch. The circuit element is coupled between the ground branch and the ground plane. A first antenna structure is formed by the ground branch. The first antenna structure is excited by a first signal source. A second antenna structure is disposed on the supporting element. The second antenna structure is excited by a second signal source.

Abstract: A communication system includes a first antenna, a second antenna, a first transceiver, a second transceiver, and a phase and power distribution transform circuit. The phase and power distribution transform circuit is coupled between the first antenna, the second antenna, the first transceiver, and the second transceiver. The phase and power distribution transform circuit is configured to adjust the phase and power of each signal from the first antenna, the second antenna, the first transceiver, and/or the second transceiver, thereby improving the communication quality of the communication system.

Abstract: A portable electronic device including a substrate, a first metal element, a second metal element and a battery is provided. The substrate has a ground plane. The first metal element is disposed on a carrier and has a feeding point. The second metal element is disposed on the carrier and is electrically connected to the ground plane. The second metal element and the first metal element are spaced apart by a coupling distance, and the portable electronic device operates in at least one band through the first metal element and the second metal element. An orthogonal projection of the battery on the carrier is overlapped with an orthogonal projection of the second metal element.

Abstract: A mobile device includes a ground element, a radiation element, a first short-circuited element, a second short-circuited element, and a switch element. The radiation element has a feeding point, a fixed grounding point, and a switchable grounding point. The fixed grounding point is coupled through the first short-circuited element to the ground element. The switchable grounding point is coupled through the second short-circuited element and the switch element to the ground element. An antenna structure is formed by the radiation element, the first short-circuited element, the second short-circuited element, and the switch element.