Abstract: An antenna (100) comprising a first pole portion (20), a first helical portion (30), a second pole portion (40) and a second helical portion (50), each of which connects the next in turn along a line, said second helical portion (50) having a plurality of cylindrical whorls, wherein the second helical portion is coated with metal (60) so that the whorls are connected to a neighbor one by the metal (60).

Abstract: An optoelectronic connector includes a cover, a circuit board mounted in the cover, and an optical module assembled to the circuit board. The optical module includes a lens module having a U-shaped receiving space, a ferrule mounted on an end of an optical waveguide, and a locking bolt releasably inserted through the lens module and assembled into the ferrule. The ferrule has two opposite side walls and adapted to be at least partly received within the receiving space. The locking bolt is configured for securely mounting the ferrule and lens module together.

Abstract: A circuit board (100) includes a first shielding layer (20) extending horizontally, an accessorial shielding layer, a signal circuit layer (3) positioned between the first shielding layer and the accessorial shielding layer, and a circumferential shielding layer (6) surrounding the circuit board and electrically connecting with the first shielding layer and the accessorial shielding layer to improve shielding effect.

Abstract: An electrical connector system includes a substrate (1) connected to PHY side and an electrical connector (3) mounted on the substrate (1), a transformer (5) and a common mode filter (7). The electrical connector (3) is used to mate with a cable assembly and so forms a Cable side. The transformer (5) further includes a first wire (51) having two opposite ends electrically connected to the PHY side and a second wire (53) having two opposite ends. The common mode filter (7) has a third wire (73) and a fourth wire (75) that are physically separated from and electrically connected to opposite ends of the second wire (53).

Abstract: An electrical connector includes a port (102, 103) for insertion of a mating connector along an insertion direction, a mating module (50) having a set of contacts (540, 542) received in the port, a transferring module (53) located behind the mating module and having a number of conductive components mounted thereon, and a shielding component (51, 52) disposed between the set of contacts and the transferring module. The shielding component is located between the set of contacts and the transferring module. The shielding component is simple and easily assembled to the transferring module.

Abstract: A electrical connector (100) includes an insulative housing (2), a shielding shell (7) enclosing the insulative housing, a ground plate (547, 5232) supported by the insulative housing and, a gap defined between an edge of the ground plate and the shielding shell and a conductive member (90, 91) positioned between the ground plate and shielding shell for filling the gap. The conductive member is provided to shield the electromagnetic interference (EMI) leaking from the gap.

Abstract: A choke module (100) for connecting with a mother board includes a housing (1), a magnetic unit (2) and a number of terminals (3). The magnetic unit includes a paddle board (21) attached to the housing and having a number of conductive pads 9212) and conductive sections (211), a number of SMDs (Surface Mount Devices 22) surface mounted on the paddle board, and a number of magnetic components (23) each having a magnetic core (231) stacked on the corresponding SMD along a vertical direction and a plurality of wires (232) winding around the magnetic core and soldered on the conductive pads. The number terminals are electrically connected with the conductive sections and secured to the housing for connecting with the mother board.

Abstract: A multiband antenna (10) includes a grounding element (11), a feeding element (12) resonating at a first frequency band, a first parasitic radiation (13) element spaced apart from the feeding element, and a parasitic element (14) disposed between the first parasitic radiation element and the feeding element for operating at the second frequency band. The first parasitic radiation element is designed for operating at a second frequency band.

Abstract: A modular jack (100) comprising a housing (200) defining an upper port and a lower port vertically stacked under the upper port, and a contact module (400) assembled to the housing. The contact module further comprises an upper row of mating contacts (42) extending into the upper port for mating with a module plug inserted therein, a horizontal upper PCB (43) bearing the upper row of contacts, a vertical right PCB (47) electrically connecting the upper PCB, a number of right transferring contacts (524) electrically connecting the right PCB, a lower row of mating contacts (44) extending into the lower port for mating with another module plug inserted therein, a horizontal lower PCB (45) bearing the lower row of contacts, a vertical left PCB (46) electrically connecting the lower PCB, a number of left transferring contacts (522) electrically connecting the left PCB.

Abstract: An antenna assembly (100) includes an antenna (10) and a coaxial cable (20). The antenna includes a first antenna element (11) and a second antenna element (12) bent from a strip-like metal sheet and discrete from the first antenna element. The first and second antenna elements are symmetrically formed with respect to a first axis (X). The coaxial cable is disposed along or parallel with the first axis and includes an inner conductor (21) electrically connected with the first antenna element, and an outer conductor (22) electrically connected with the second antenna element.

Abstract: A dipole antenna assembly (100, 200) includes a dipole antenna (10, 30) and a feeding element (20, 40) connecting with the dipole antenna. The dipole antenna includes a radiation portion (12, 32), a ground portion (13, 33) and a circuit (14, 34). The feeding element includes a central conductor (21, 41) soldered on the radiation portion at a first position, and a shielding layer (23, 43) soldered on the ground portion at a second position. The circuit includes one end connecting with the radiation portion at the first position, and another end connecting with the ground position at the second position for impedance matching.

Abstract: A choke module (100) for an insulative housing (2) includes a first and a second walls (23, 24) defining a first and a second receiving cavities (28, 29); a first set of contact terminals (4) arranged in the first wall, a second set of contact terminals (4) arranged in the second wall, a third set of contact terminals (5) disposed in the partition, a paddle board (6) having a number of conductive traces and attached to the insulative housing to interconnect the first and third set of contact terminals, a number of chokes (8) wound with wires which interconnects the first and second sets of contact terminals. The first and second contact terminal has a first and a second soldering portion (42) extending out of the housing and a first and a second mating portion (41) at the first wall.

Abstract: An antenna (100) comprising a first pole portion (20), a first helical portion (30), a second pole portion (40) and a second helical portion (50), each of which connects the next in turn along a line, said second helical portion (50) having a plurality of cylindrical whorls, wherein the second helical portion is coated with metal (60) so that the whorls are connected to a neighbor one by the metal (60).

Abstract: An electrical connector system includes a substrate (1) connected to PHY side and an electrical connector (3) mounted on the substrate (1), a transformer (5) and a common mode filter (7). The electrical connector (3) is used to mate with a cable assembly and so forms a Cable side. The transformer (5) further includes a first wire (51) having two opposite ends electrically connected to the PHY side and a second wire (53) having two opposite ends. The common mode filter (7) has a third wire (73) and a fourth wire (75) physically separated from the second wire (53). The third wire (73) has an end electrically connected to one end of the second wire (53) and an opposite end electrically connected to the Cable side. The fourth wire (75) has an end electrically connected to the opposite end of the second wire (53) and an opposite end electrically connected to the Cable side.

Abstract: A dual-band dipole antenna (100) includes a ground radiating portion (2), a signal radiating portion (3) and a feed wire (1). The feed wire (1) has a ground portion (12) connected to the ground radiating portion (2), and a core conduct (11) connected to the signal radiating portion (3). The signal radiating portion (3) has a first branch (31), a second branch (32) having a same length and a same width as the first branch (31), and a middle portion (33) connecting the first branch (31) and the second branch (32) at connecting points. Each of the first branch (31) and the second branch (32) has a first radiating length (D1) extending from the connecting point and a second radiating length (D2) extending from the connecting point.

Abstract: An electronic apparatus includes a main circuit board and a printed antenna secured to the main circuit board. The main circuit board has a grounding trace and a feed trace. The printed antenna includes an insulative base having a number of conductive traces deposited thereon in order to form a grounding portion and a radiating portion separated from each other. The grounding and the radiating portions have first and second conductive pads electrically and mechanically connecting the grounding trace and the feed trace, respectively. As a result, traditional coaxial cables used for connecting the printed antenna and the main circuit board are omitted.

Abstract: An electrical connector system includes a substrate (1) connected to PHY side and an electrical connector (3) mounted on the substrate (1), a transformer (5) and a common mode filter (7). The electrical connector (3) is used to mate with a cable assembly and so forms a Cable side. The transformer (5) further includes a first wire (51) having two opposite ends electrically connected to the PHY side and a second wire (53) having two opposite ends. The common mode filter (7) has a third wire (73) and a fourth wire (75) physically separated from the second wire (53). The third wire (73) has an end electrically connected to one end of the second wire (53) and an opposite end electrically connected to the Cable side. The fourth wire (75) has an end electrically connected to the opposite end of the second wire (53) and an opposite end electrically connected to the Cable side.

Abstract: A choke module (100) for an insulative housing (2) includes a first and a second walls (23, 24) defining a first and a second receiving cavities (28, 29); a first set of contact terminals (4) arranged in the first wall, a second set of contact terminals (4) arranged in the second wall, a third set of contact terminals (5) disposed in the partition, a paddle board (6) having a number of conductive traces and attached to the insulative housing to interconnect the first and third set of contact terminals, a number of chokes (8) wound with wires which interconnects the first and second sets of contact terminals. The first and second contact terminal has a first and a second soldering portion (42) extending out of the housing and a first and a second mating portion (41) at the first wall.

Abstract: An electrical connector system includes a substrate (1) connected to PHY side and an electrical connector (3) mounted on the substrate (1), a transformer (5) and a common mode filter (7). The electrical connector (3) is used to mate with a cable assembly and so forms a Cable side. The transformer (5) further includes a first wire (51) having two opposite ends electrically connected to the PHY side and a second wire (53) having two opposite ends. The common mode filter (7) has a third wire (73) and a fourth wire (75) that are physically separated from the second wire (53). The third wire (73) has an end electrically connected to one end of the second wire (53) and an opposite end electrically connected to the Cable side. The fourth wire (75) has an end electrically connected to the opposite end of the second wire (53) and an opposite end electrically connected to the Cable side.

Abstract: An electrical connector system includes a substrate (1) connected to PHY side and an electrical connector (3) mounted on the substrate (1), a transformer (5) and a common mode filter (7). The electrical connector (3) is used to mate with a cable assembly and so forms a Cable side. The transformer (5) further includes a first wire (51) having two opposite ends electrically connected to the PHY side and a second wire (53) having two opposite ends. The common mode filter (7) has a third wire (73) and a fourth wire (75) that are physically separated from the second wire (53). The third wire (73) has an end electrically connected to one end of the second wire (53) and an opposite end electrically connected to the Cable side. The fourth wire (75) has an end electrically connected to the opposite end of the second wire (53) and an opposite end electrically connected to the Cable side.