摘要:
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).
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
The electrical connector system comprises 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 comprises 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) having 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.
摘要:
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.