Abstract: A transmitter for wireless communications can remove a signal having an image frequency without using a band pass filter, and can be downsized such that it is integrated into a single chip on an integrated circuit board.

Abstract: An adaptive power amplifier and a radio frequency transmitter thereof are described. The radio frequency transmitter is a transmitter to transmit a transmission signal for a wireless communication system. The radio frequency transmitter includes at least one direct-current (DC) to direct-current (DC) converter coupled to an external power supply device for operation, a digital-to-analog converter configured to convert a digital signal into an analog signal, a filter configured to filter a harmonic component of the analog signal to generate an input signal, a RF up-converter configured to up-convert the input signal according to a desired channel frequency for generating a modulated signal, and a power amplifying circuit coupled to the DC-to-DC converter and the external power supply device, for selectively receiving one of different supply voltages for operation, and amplifying the modulated signal to generate a RF output signal.

Abstract: An electrical connector includes a dielectric housing, a plurality of electrical signal contacts carried by the dielectric housing, and a ground plate carried by the dielectric housing. The electrical signal contacts are arranged along a first plane, wherein the signal contacts define signal pairs. The signal contacts further define respective mating and mounting ends. The ground plate includes a ground plate body oriented in a second plane that is substantially parallel to the first plane and offset from the first plane. The ground plate body defines first and second opposed surfaces. The ground plate includes at least one rib that defines first and second opposed surfaces, wherein the first surface of the rib projects from the first surface of the ground plate body in a direction toward the first plane between adjacent signal pairs, and the second surface is recessed into the second surface of the ground plate body.

Abstract: An electrical connector including a housing and electrical conductor plating. The housing includes a first member and a second member. The first member is made of plastic and forms at least one first contact receiving channel therein. The second member is attached around the first member, and the first and second members form at least one second contact receiving channel therebetween. The electrical conductor plating is on the first member. The electrical conductor plating includes at least one first section along the at least one first contact receiving channel and at least one second section along an exterior side of the first member at the at least one second contact receiving channel. The first and second sections of the electrical conductor plating are electrically separate from one another.

Abstract: A separator is configured to separate first and second printed circuit boards that are in electrical communication with each other through first and second pluralities of electrical connectors that are mounted to the first and second substrates, respectively, and mated to each other.

Abstract: An electrical power interconnection system is described. The electrical interconnection system may comprise an electrical power connector and a substrate, such as a printed circuit board. The electrical power connector may comprise a housing and a plurality of electrical power contacts supported by the housing. The electrical power contacts may comprise a mounting end, a mating end, and a contact body disposed between the mounting end and the mating end. The electrical power contacts may have planar portions. The mating ends may comprise opposing first second beams defining a slot. The slot may be configured to receive the substrate therein, such that the first beam contacts the first side of the substrate and the second beam contacts the second side of the substrate.

Abstract: An electrical cable connector is provided that can be configured to be mounted to a printed circuit board. The electrical connector includes a connector housing, and a pair of electrical terminals (38,40) that are configured to be mounted to electrical cables (22,30). The electrical terminals (38,40) can be identical to each other in one example.

Abstract: An electrical connector having one or more openings formed in the connector's housing between adjacent rows of conductors. The openings may be positioned between rows of contact portions, and reduces crosstalk between conductors in adjacent rows. The opening(s) may extend through the entire length of the connector's housing. The opening(s) may have any suitable shape. In some embodiments, the openings may comprise a slot, bifurcated by crossbeams. The crossbeams may have ends positioned between signal conductors in the same row of the same type, either signal or ground. Alternatively or additionally, the crossbeams may be angled with respect to the rows of contacts such that the ends are positioned proximate conductors of a first type in one row and proximate conductors of a second type in another row.

Abstract: In accordance with one embodiment, an electrical contact has a mating end and a mounting end. The electrical contact includes an electrically conductive base, and a multi-layered coating disposed on an outer surface of the base at the mating end. The multi-layered coating can include a metallic layer of a noble metal or alloy thereat: a layer of anti-tarnish material disposed on the metallic layer, and a lubricant layer disposed on the layer of anti-tarnish material, the lubricant effective to seal at least some wear regions created in the layer of anti-tarnish material due to micromotion of the mating end in use.

Abstract: Electrical cables are described having strands of fibers of wire that are fused together at their ends to facilitate attachment to a respective mating member and mounting member.

Abstract: An electrical connector assembly comprises a first connector having an outer housing having an activatable latch flexibly attached thereto, the latch having a lock tab located thereon; an inner housing mounted in the outer housing, the inner housing having first and second prongs integrally formed with the inner housing and configured to continuously bias the latch; and a second connector comprising a cavity formed on a surface thereof. Continuously biasing the latch by the first and second prongs causes the engagement of the lock tab of the first connector with the cavity of the second connector to lock the first connector to the second connector.

Abstract: A method of saving power of a station in wireless network is provided. The station comprises a connectivity module, a central processing unit, and peripheral devices. The method includes: upon receiving a wake-up signal, powering on the connectivity module, the central processing unit, and the peripheral devices; performing the central processing unit and the peripheral devices in a connection state; performing the connectivity module in an authenticated state; and upon a condition that there is no data to be transferred to the station or after the station transmits and receives all needed data, performing a sleep mode to power off the connectivity module, the central processing unit, and the peripheral devices.

Abstract: A modular, hybrid electrical connector suitable for use as a power connector with contacts for different types of power. Portions of the connector may be electrically and mechanically connected to an electronic assembly at different times or in different ways. A first portion of the connector may be electrically connected to a printed circuit board within the assembly. A second portion may be subsequently attached to the first portion and electrically connected to other components within the assembly through cables. With this configuration, the first portion may carry power contacts, coupled to a DC supply through the printed circuit board, and the second portion may carry power contacts, coupled to an AC supply through the cables. The first portion may be soldered to the printed circuit board such as through a reflow operation, without the heat of the reflow damaging the insulation of the cable, which may degrade if heated.

Abstract: A direct mate orthogonal electrical connector assembly includes first and second electrical connectors configured to be mated to respective first and second substrates such that the second substrate is perpendicular to the first substrate.

Abstract: An electrical connector assembly includes a first electrical connector and a second electrical connector. At least one of the electrical connectors may comprise an insulating housing comprise a plurality of housing portions. The housing portions may support pairs of electric signal contacts, which may be arranged to carry differential signals. The electrical signals contacts may be edge coupled or broadside coupled. The insulating housing may further comprise a plurality of conductive ground shields which may be arranged to electrically shield adjacent pairs of electrical signals contacts. In one implementation, a shield may have walls shaped and positioned to surround a pair of electric signal contacts on three sides. The walls of a shield may extend along the direction of mating.

Abstract: A bearing plate and a nut and bolt arrangement for use as a rib or roof support for coal mines where the extracted coal is used for powder coal and has a specific gravity in the range of 1.5-1.9, preferably 1.7. The bearing plate has an outer reinforced area surrounding an inner reinforced area. The outer reinforced area has one or more endless rib members and the inner reinforced area has a plurality of legs, wherein the legs are spaced from one another and the first end of each leg encircles a bolthole in a center of the bearing plate to receive the bolt of the nut and bolt assembly. The bearing plate and the nut and bolt assembly are made of fiberglass reinforced plastic.

Abstract: A method including providing a contact lead frame comprised of a sheet metal member, where the contact lead frame includes a plurality of first signal contacts and a plurality of second ground contacts, where the first signal contacts have a male termination end with a first effective thickness which is substantially the same as thickness of the sheet metal member, and stamping a male termination end of the second ground contact, located at a same side of the lead frame as the male termination end of the first signal contacts, to form a dual beam structure having a second effective thickness which is larger than the first effective thickness, where two beams of the dual beam structure are generally parallel to each other along a majority of length of the male termination end of the second ground contact.

Abstract: A card edge connector with latching that enables a compact connector. The connector includes a latch, centrally located along the connector. The latch may be aligned with an alignment rib of the connector housing, reducing the space required for the latch. In some embodiments, portions of the latch may be bifurcated so that the latch may straddle the rib. In this way, space for a latch in a circuit assembly using the connector may be less than in conventional connector with latches on each end.

Abstract: A strain relief assembly is provided for a bundle of cables surrounded by an electrically conductive sleeve. The strain relief assembly can include a ferrule and at least one retention member. The cables extend through the ferrule, and the sleeve extends over the ferrule, so as to be captured between the ferrule and the retention member.

Abstract: The present disclosure relates to an optoelectrical connector module comprising a flexible circuit board (10) having a first region and a second region and a printed circuit board (PCB) (20) that is attached to the first region of the flexible circuit board, and an optical module (30) that is attached to the second region of the flexible circuit board. The optical module is configured to transmit and/or receive light signals. The optoelectrical connector module comprises further a rigid support structure (40) having a first and a second surface that enclose a defined angle. The first surface of the rigid support structure is thereby arranged in parallel to the PCB and the second surface of the rigid support structure is connected to the flexible circuit board opposite the second region.