Abstract: An antenna system includes a system ground and two antenna units. The two antenna units are individually disposed on two opposite sides of the system ground and symmetrically mirrored with each other. Each antenna unit includes a circuit board, a first antenna pattern and a second antenna pattern. The first antenna pattern is disposed at one side of the circuit board. The first antenna pattern resonates to generate a first high resonant frequency. The second antenna pattern is disposed at the other side of the circuit board. The first antenna pattern resonates with part of the second antenna pattern to generate a low resonant frequency.

Abstract: A wireless communication device includes a metallic housing, a circuit board, a metallic heat sink, and first, second and third antennas. The metallic housing includes a chamber. The circuit board is disposed in the chamber for providing a feed signal. The metallic heat sink is disposed on the circuit board and divides the chamber into first and second regions. The first antenna is disposed at the first region along a first direction. The second antenna is disposed at the second region along a second direction perpendicular to the first direction. The third antenna is disposed at the second region along the first direction and located between the metallic heat sink and the second antenna. The first, second and third antennas are coupled with the circuit board. The first, second and third antennas receive the feed signal and at least are capable of generating signals at the same frequency band.

Abstract: A wireless communication system disposed at a wearable electronic device. The wearable electronic device includes a metallic accommodating housing and a first metallic curved piece. The first metallic curved piece is protrudingly disposed at one side of the metallic accommodating housing. The wireless communication system includes a circuit board, a first insulation cover and a first loop antenna. The circuit board is coupled with the first loop antenna to generate a first wireless radio-frequency signal. The first insulation cover surrounds the first metallic curved piece. The first antenna generates a first band and a second band by resonance according to the first wireless radio-frequency signal after electromagnetically coupled with the first metallic curved piece.

Abstract: A multiple antenna apparatus is provided. A first feed antenna unit is shared for receiving and transmitting radio frequency (RF) signals corresponding to a bandwidth of a first resonance mode, so as to increase antenna configurable space of the multiple antenna apparatus, and thus a closed slot antenna formed by a wire, a ground plane and a radiation element is able to be configured in the multiple antenna apparatus to receive and transmit the RF signals corresponding to a second resonance mode.

Abstract: An antenna module includes a first ground structure, a first radiation portion and a second radiation portion. The first ground structure includes a first ground portion, a second ground portion and ranged between the first ground portion and the second ground portion. The first radiation portion is configured to generate a first resonant mode accompanied with the first ground structure, including a first feeding terminal configured to send and receive a first antenna signal, and a first grounding terminal coupled to the first ground portion. The second radiation portion is configured to generate a second resonant mode in a manner of coupling with the first radiation portion, including a second feeding terminal configured to send and receive a second antenna signal, and a second grounding terminal coupled to the second ground portion.

Abstract: A wireless communication device includes a housing and a plurality of antenna units. The antenna units surround a surface of the housing and stand on a system ground. Each of the antenna units includes a first radiation part, a second radiation part and a conductive component. The first radiation part has a signal feed point for receiving a feeding signal. The second radiation part surrounds the first radiation part and has a first side, a second side, a first ground point and a second ground point, wherein the first side is parallel to the system ground while the second side is perpendicular to the system ground. The first side is perpendicular to the second side and shorter than the second side. The conductive component is disposed between the first side and the system ground and connected to the first side and the system ground.

Abstract: A wearable electronic device includes a middle frame, a metallic side wall, a dielectric element, and a antenna wiring circuit. The metallic side wall is disposed at one side of the middle frame and has a slot. The dielectric element is disposed at the slot and electrically isolates the metallic side wall and the middle frame. The antenna wiring circuit is disposed at the dielectric element and comprises a antenna pattern. The antenna pattern comprises first and second metal portions. The first metal portion comprises a slit surrounded by first to third segments. The first segment has a signal feeding terminal. The second metal portion is connected to the third segment and is located in the slit. The metallic side wall performs coupled resonant with the first metal portion and the second metal portion to generate a resonant frequency band.

Abstract: An antenna system includes a system ground and two antenna units. The two antenna units are individually disposed on two opposite sides of the system ground and symmetrically mirrored with each other. Each antenna unit includes a circuit board, a first antenna pattern and a second antenna pattern. The first antenna pattern is disposed at one side of the circuit board. The first antenna pattern resonates to generate a first high resonant frequency. The second antenna pattern is disposed at the other side of the circuit board. The first antenna pattern resonates with part of the second antenna pattern to generate a low resonant frequency.

Abstract: An antenna module is disclosed. The antenna module is applied to a mobile communication device and includes a first radiating element and a second radiating element. The first radiating element is disposed on a base board inside the mobile communication device, and one point of the first radiating element is a feed point of the antenna module. The second radiating element is disposed on the base board and is grounded by connecting to a P-sensor inside the mobile communication device. There is a gap between one part of the second radiating element and the first radiating element.

Abstract: A wearable electronic device is disclosed. Wearable electronic device includes a metal casing, a dielectric support part, a frame-shaped metal part, a dielectric sidewall and a first antenna wired circuit. The metal casing is electrically connected to the system ground. The dielectric support part is disposed on the metal casing. The frame-shaped metal part is disposed on the dielectric support part. One side of the frame-shaped metal part is electrically connected to the metal casing and another side of the frame-shaped metal part has a slot. The dielectric sidewall is surrounding within the metal casing. The first antenna wired circuit is disposed on the inner surface of the dielectric sidewall and insulated from the metal casing. The first antenna wired circuit is near the slot. The first antenna wired circuit and the frame-shaped metal part resonate a first resonant frequency band.

Abstract: An antenna module includes a parasitic unit and a first antenna unit. The parasitic unit includes a first parasitic radiation portion and a second parasitic radiation portion. The second parasitic radiation portion is electrically connected to the first parasitic radiation portion. The first parasitic radiation portion and the second parasitic radiation portion surround a central area. The first antenna unit includes a feeding terminal, a ground terminal and a first radiation portion, in which the ground terminal is electrically connected to a ground portion. The feeding terminal is configured to transmit and receive a first antenna signal. The first radiation portion is configured to collaborate with the parasitic unit to generate a first resonant mode. The first resonant mode includes a central frequency, a frequency twice of the central frequency and a frequency three times of the central frequency.

Abstract: A wireless communication apparatus includes a base, a sidewall, a top cap, a main ground structure, an antenna and a parasitic ground structure. The base has a top surface. The sidewall is disposed on the base. The sidewall has an inner wall surface. The inner wall surface stands on the top surface of the base. The top cap caps the sidewall. The top cap has a lower surface facing toward the top surface of the base. The main ground structure is disposed on the top surface and surrounded by the sidewall. The antenna is disposed on the inner wall surface. The parasitic ground structure is disposed on the lower surface of the top cap and electrically connected to the main ground structure. The parasitic ground structure and the main ground structure are cooperatively configured to resonate with the antenna.

Abstract: An antenna unit, an antenna system and an antenna control method are disclosed. The antenna unit includes a first radiation metal element, a second radiation metal element, and a third radiation metal element. The first radiation metal element includes a signal feed point, a first ground point, and a second ground point. The signal feed point, the first ground point, and the second ground point are disposed approximately in a straight line. The second radiation metal element is disposed away from the first radiation metal element with a gap and includes a third ground point. The third radiation metal element surrounds the first radiation metal element and the second radiation metal element and includes a fourth ground point.

Abstract: A wearable electronic device includes a middle frame, two connecting sidewalls, a first metal sidewall, a first dielectric component and a first antenna layout trace circuit. The two connecting sidewalls are disposed at two opposite sides of the middle frame for connecting a wearable component. The first metal sidewall is disposed at the middle frame and located between the two connecting sidewalls. The first metal sidewall is connected to ground and includes a first slot. The first dielectric component is installed in the first slot, so that the first metal sidewall surrounds the first dielectric component to form a first closed ground structure.The first antenna layout trace circuit is installed on the first dielectric component. The first antenna layout trace circuit and the first closed ground structure associate a first resonate frequency.

Abstract: A wearable electronic device is disclosed. Wearable electronic device includes a casing, a dielectric component and an antenna wired circuit. The casing includes a metal bottom, a first metal sidewall connected to the metal bottom, a connection structure disposed at the first metal sidewall, and a second metal sidewall adjacent to the metal bottom and the first metal sidewall with a gap. The dielectric component is installed at the gap to electrically isolate the second metal sidewall from the first metal sidewall and the metal bottom. The antenna wired circuit is disposed at the dielectric component and electrically coupled to the second metal sidewall for resonating to generate a resonance band with the second metal sidewall.

Abstract: A wireless communication apparatus includes a substrate, an electrical insulation cover, a first antenna and a second antenna. The substrate has a ground surface. The electrical insulation cover covers the substrate. The electrical insulation cover has first and second surfaces. The first antenna is disposed on the first surface and is electrically connected to the ground surface. The second antenna is disposed on the second surface and includes first and second capacitive coupling portions, a signal feeding portion and a first slit. The signal feeding portion connects the first and second capacitive coupling portions. The first slit is located between the first and second capacitive coupling portions. The first antenna can generate first and second resonant modes with the first and second capacitive coupling portions in a manner of capacitive coupling, respectively. The first and second resonant modes have different frequency bands.

Abstract: A dual band printed antenna that includes a substrate including a first and a second surfaces opposite to each other and conductive holes, a first and a second drivers, a first and a second reflectors and a transmission line is provided. The first driver is disposed on the first surface to generate a radiation pattern of a first frequency band. The first reflector is disposed on the first surface and apart from the first driver. The second driver is disposed on the second surface to generate a radiation pattern of a second frequency band and electrically coupled to the first driver through the conductive holes. The reflector is disposed on the second surface, corresponding to a position of the first driver and apart from the second driver. The transmission line is disposed on the first surface and coupled to a feeding point and a ground point of the first driver.

Abstract: An antenna unit includes a first metal portion, a second metal portion connected to one side of the first metal portion, a third metal portion connected to another side of the first metal portion and opposite to the second metal portion, a feed point disposed at the second metal portion, a first ground terminal, and a second ground terminal. The feed point, the first ground terminal and the second ground terminal are disposed in a straight line. The shape of the first metal portion is mirror-image symmetrical relative to the feed point, the first ground terminal and the second ground terminal.

Abstract: An antenna system includes an antenna array, a wireless transceiver module and a control module. The antenna array includes a first antenna and a second antenna coupled respectively to the wireless transceiver module. The wireless transceiver module sends and receives signals via the first antenna based on a first phase and sends and receives signals via the second antenna based on a second phase. The control module coupled to the wireless transceiver module, and controls the phase difference between the first phase and the second phase. The radiation pattern of the antenna array is modulated towards one pointing direction based on the phase difference.

Abstract: A patch antenna includes a grounding portion and a radiating portion. The radiating portion includes a first feeding point, a first grounding point, a second feeding point, and a second grounding point. The first feeding point is electrically connected to a first signal source. The first grounding point is electrically connected to the grounding portion. The second feeding point is electrically connected to a second signal source. The second grounding point electrically connected to the grounding portion. The line formed by connecting the first feeding point and the first grounding point is substantially perpendicular to the line formed by connecting the second feeding point and the second grounding point.