摘要:
A cable termination that enables the attachment of SMA connectors to controlled-impedance cables with a conductive foil wrap shield; for the separate ferrule embodiment, the sheath is stripped back on the cable, exposing the foil shield surrounding the dielectric; a ferrule is slid or clamped over the foil shield and bonded; the face of the ferrule is dressed so that the foil shield and dielectric are flush with the ferrule face and the signal conductor protrudes from the face this cable subassembly is installed in the boss of a housing that prevents movement of the ferrules relative to each other and so that each ferrule face is aligned with an opening in the boss through which an SMA connector barrel is attached to the ferrule a cover secures the cable subassembly in the housing.
摘要:
A controlled-impedance cable assembly for removably attaching a controlled-impedance cable to a surface of a device. Signal contacts are attached to signal conductors of cables and ground members are coupled to shields of the cables. Ends of the signal conductors and of elongated appendages extending from the ground members are positioned to make a pressure contact to pads and ground lands on the surface. Pressure to make those contacts may come from deflection of the ends of the signal conductors and elongated ground appendages or from a spring. The signal contacts and elongated appendages may be positioned to provide an impedance matching an impedance with the cables.
摘要:
A controlled-impedance cable termination that minimizes the effects of cable expansion and contraction on impedance matching. The terminator has an anchor block, an expansion/contraction compensator (ECC) attached to the cable, a compliant signal contact for making the electrical connection between the cable center conductor and the electrical device. The ECC has an electrically-conductive ferrule with a bore. The ferrule bore may be formed in the anchor block instead of in a separate ferrule. The cable shield is attached at the bore. A solid dielectric insert fits into the ferrule bore. An electrically-conductive center pin fits into a bore in the dielectric insert and has a bore that accepts the center conductor such that the center conductor can expand and contracting while maintaining electrical contact with the center pin. A plate abuts the anchor block face and holds the compliant contacts through apertures.
摘要:
An apparatus for terminating a controlled-impedance cable using compliant electrical contacts to provide an interface to another device. The terminator includes a conductive ground block for securing the cable by its ground shield and providing a common ground. Once the cable is anchored in the ground block, the block face and cable ends are dressed to make a reliable electrical contact with the compliant signal contact that electrically connects the cable center conductor to the device. An insulating or conductive plate mounted to the ground block holds the signal contact and optional ground contacts that electrically connect the ground block to the ground plane of the device. The ground contacts surround the signal contact in a pattern that closely mimics the impedance environment of the cable. When using a conductive plate, the signal contact is insulated from the plate by an insulating centering plug or a non-conductive coating.
摘要:
A cable termination that enables the attachment of SMA connectors to controlled-impedance cables with a conductive foil wrap shield; for the separate ferrule embodiment, the sheath is stripped back on the cable, exposing the foil shield surrounding the dielectric; a ferrule is slid or clamped over the foil shield and bonded; the face of the ferrule is dressed so that the foil shield and dielectric are flush with the ferrule face and the signal conductor protrudes from the face this cable subassembly is installed in the boss of a housing that prevents movement of the ferrules relative to each other and so that each ferrule face is aligned with an opening in the boss through which an SMA connector barrel is attached to the ferrule a cover secures the cable subassembly in the housing.
摘要:
A controlled-impedance cable termination that minimizes the effects of cable expansion and contraction on impedance matching. The terminator has an anchor block, an expansion/contraction compensator (ECC) attached to the cable, a compliant signal contact for making the electrical connection between the cable center conductor and the electrical device. The ECC has an electrically-conductive ferrule with a bore. The ferrule bore may be formed in the anchor block instead of in a separate ferrule. The cable shield is attached at the bore. A solid dielectric insert fits into the ferrule bore. An electrically-conductive center pin fits into a bore in the dielectric insert and has a bore that accepts the center conductor such that the center conductor can expand and contracting while maintaining electrical contact with the center pin. A plate abuts the anchor block face and holds the compliant contacts through apertures.
摘要:
An apparatus for terminating a controlled-impedance cable using compliant electrical contacts to provide an interface to another device. The terminator includes an anchor block for securing the cable. Optionally, the anchor block is electrically non-conductive. A conductive ferrule is installed on the cable shield and the cable end is dressed. The ferrule/cable assembly is installed in a through hole in the anchor block so the cable end is flush with the anchor block face. An insulating or conductive plate mounted to the anchor block holds the signal contact that electrically connects the center conductor to the device and optional ground contacts that electrically connect the ferrule to the device. The ground contacts surround the signal contact in a pattern that closely mimics the impedance environment of the cable. When using a conductive plate, the signal contact is insulated from the plate by an insulating centering plug or a non-conductive coating.
摘要:
An apparatus for terminating a controlled-impedance cable using compliant electrical contacts to provide an interface to another device. The terminator includes a conductive ground block for securing the cable by its ground shield and providing a common ground. Once the cable is anchored in the ground block, the block face and cable ends are dressed to make a reliable electrical contact with the compliant signal contact that electrically connects the cable center conductor to the device. An insulating or conductive plate mounted to the ground block holds the signal contact and optional ground contacts that electrically connect the ground block to the ground plane of the device. The ground contacts surround the signal contact in a pattern that closely mimics the impedance environment of the cable. When using a conductive plate, the signal contact is insulated from the plate by an insulating centering plug or a non-conductive coating. A controlled-impedance cable terminator using compliant electrical contacts to provide an interface to another device. The terminator includes a conductive plate with a face surface and a device surface. Signal through holes extend between the face surface and device surface. Each signal through hole has an insulating centering plug with a signal through aperture that has openings in the face surface and the device surface. The signal through aperture holds a skewed coil signal contact with contact points extending from each signal through aperture opening. Optionally, the plate includes ground through apertures that surround the signal through aperture. Each ground through aperture has openings in the face surface and device surface. The ground through aperture holds a skewed coil ground contact with contact points extending from each ground through aperture opening.
摘要:
An apparatus for terminating a controlled-impedance cable using compliant electrical contacts to provide an interface to another device. The terminator includes a conductive ground block for securing the cable by its ground shield and providing a common ground. Once the cable is anchored in the ground block, the block face and cable ends are dressed to make a reliable electrical contact with the compliant signal contact that electrically connects the cable center conductor to the device. An insulating or conductive plate mounted to the ground block holds the signal contact and optional ground contacts that electrically connect the ground block to the ground plane of the device. The ground contacts surround the signal contact in a pattern that closely mimics the impedance environment of the cable. When using a conductive plate, the signal contact is insulated from the plate by an insulating centering plug or a non-conductive coating.
摘要:
A controlled-impedance cable assembly for removably attaching a controlled-impedance cable to a surface of a device. Signal contacts are attached to signal conductors of cables and ground members are coupled to shields of the cables. Ends of the signal conductors and of elongated appendages extending from the ground members are positioned to make a pressure contact to pads and ground lands on the surface. Pressure to make those contacts may come from deflection of the ends of the signal conductors and elongated ground appendages or from a spring. The signal contacts and elongated appendages may be positioned to provide an impedance matching an impedance with the cables.