Abstract: A broadband power amplifier circuit providing wide bandwidth with low distortion. The broadband power amplifier circuit includes a GaAs pHEMT MMIC with two (2) serially coupled cascode amplifiers in a first half of the circuit, two (2) serially coupled cascode amplifiers in a second half of the circuit, a first balun for receiving a single-ended RF or microwave input signal at a circuit input and providing first and second balanced low level signals to the cascode amplifiers of the first and second circuit halves, respectively, and a second balun for receiving first and second balanced high level signals generated by the cascode amplifiers of the first and second circuit halves, respectively, and providing a single-ended amplified broadband output signal with low distortion at a circuit output.

Abstract: A process of simultaneously forming a plurality of metal features on a substrate, in which at least one metal feature has undercut sides and at least one metal feature does not have undercut sides involves the application of a lower photoresist feature having rounded sides and an upper photoresist feature having undercut sides wherein the upper photoresist feature is positioned in offset relation to the lower photoresist feature such that one edge of the upper photoresist feature does not extend over the corresponding edge of the lower photoresist feature and the other edge of the upper photoresist feature does extend beyond the corresponding edge of the lower photoresist feature.

Abstract: A millimeter wave radar system that is less sensitive to process misalignment. The millimeter wave radar system includes at least one channel formed in a surface of a backing plate; and, a microstrip antenna array assembly including a plurality of conductive microstrips, a ground plane, and a dielectric substrate disposed between the conductive microstrips and the ground plane to form a plurality of microstrip transmission lines. The plate surface is mounted to the ground plate to form at least one waveguide. The ground plane has a plurality of slots formed therethrough to form a plurality of waveguide-to-microstrip transmission line transitions. A portion of the ground plane comprising a wall of the waveguide has a plurality of slots formed therethrough for transferring electromagnetic wave energy between the microstrip transmission lines and the waveguide. The slots are placed on the same side of the longitudinal centerline of the waveguide wall.

Abstract: An electrical connector assembly includes a female connector and a male connector, wherein the female connector comprises a first connector piece adapted to retain female terminals therein and a second connector piece having internal camming projections; the first and second connector pieces being disposed for relative movement such that, upon movement of the second connector piece towards the first connector piece by actuation of external camming members, the internal camming projects deflect spring contact members on the female terminals, whereby the force needed to mate or unmate male terminals with the female terminals is reduced.

Abstract: An electrical connector (22) having an array of terminals (50) disposed in respective terminal receiving passageways (30) therein and a programmable keying member (60) disposed into a key receiving opening (32) extending into the mating face (26) among the array of terminal receiving passageways (30). The key receiving opening (32) is configured to receive the keying member (60) in any of a plurality of orientations. The keying member (60) further may include other terminals (82, 84) disposed in terminals receiving passageways (78, 80) of the keying member (60).

Abstract: A substrate, preferably silicon, or other suitable material has a layer of glass material disposed thereon. The glass material of the present disclosure has a substantially increased uniformity due to the reduction in bubbles as well as a relatively smooth top surface. By virtue of the reduction in the number and size of the bubbles in the glass the dielectric properties of the glass are more uniform. Additionally, the fact that the surface of the glass is much more smooth reduces the potential of prior structures to have an unacceptably thin glass layer due to the need to grind the surface smooth.

Abstract: An environmentally sealed power distribution module is disclosed having a hybrid peripheral seal disposed around a power distribution panel and within an interface between a top housing and a base housing. The peripheral seal is comprised of a traditional o-ring type seal having an open segment and a gel pad type seal located within the open segment, thereby completing the peripheral seal. Plate-like power distribution bus bars are reliably sealed by the gel pad type seal as the bus bars exit the power distribution module. A sealed releasable cover is provided to access fuses and other electrical components of the power distribution module.

Abstract: A single cycle positioning system utilizing a DC motor wherein a wide ranging incoming AC supply voltage is rectified and a fixed frequency variable duty cycle pulse width modulation is provided to apply a predetermined rms DC voltage to the motor for a single cycle of operation.

Abstract: A sealed electrical connector assembly comprises a cap connector 10 matable with a plug connector 100. The cap connector housing comprises a front section 30 and a separate rear section 60, which includes a shroud 61. The two housing sections are attached and two sliding secondary lock plates 40, 50 are trapped between the two housing components. Each secondary lock plate includes a protrusion 41, 51 extending through openings 32 in the front housing section. 30 so that the locks can be shifted from the front of the housing. The plug connector housing has a similar structure. A gasket seal 120 is mounted in the plug connector 110 to engage a lip on the cap connector shroud 61. An alignment plate 20 includes camming fingers that insure that the secondary locks 40, 50 are laterally shifted to a fully inserted position during mating.

Abstract: An electrical receptacle for electrical connection to insulated electrical conductors comprises a dielectric housing (12) including a first housing section (22) and a second housing section (24); first and second electrical contact members (38, 40) disposed in the dielectric housing (12) and having first contacts (38b, 40b) in alignment with slots (26, 28) of the dielectric housing and second contacts (38a, 40a) in alignment with openings (58) of the dielectric housing including insulation-displacement contacts; and conductor-moving members (16, 18) associated with the insulation-displacement contacts-for moving the insulated electrical conductors into the insulation-displacement contacts thereby effecting electrical connections between the insulation-displacement contacts and the insulated electrical conductors.

Abstract: A electronic module guide frame (10) for mounting onto a circuit board (30) and for receiving a an electronic module therein comprises side walls (12, 14) connected at inner ends thereof with a back wall (16), a front section (18) connecting front ends of the side walls, a light transmission mounting area (48) on an outer surface of one of the side walls adjacent the front section (18), a light transmission unit (46) disposed along the light transmission mounting area, and mounting members (56, 58) provided by the light transmission unit (46) and the light transmission mounting area (48) mounting the light transmission unit onto the light transmission mounting area.

Abstract: An electrical connector assembly includes an electrical connector 2 which can be positioned in a shroud 70 that can be actuated by a lever 72 to mate with a pin header connector 4. Contact terminals 10 located in cavities 30 in a molded housing 20 are held in place by primary latching members that comprise molded deflectable cantilever latches 50. The latches 50 are part of external housing faces 28. During insertion and removal of the contacts 10, the latches are outwardly deflected. A stop shoulder 54 on the front of each latch 50 is opposed to a fixed shoulder 40 to prevent excess latch deflection and overstressing of the plastic. The latch stop shoulders 54 are formed on inner corners of a frame 60 located on the distal or front end 52 of the cantilever latches 50 which define a portion of the housing mating face.

Abstract: The present invention provides a fiber optic connector which allows easy and secure assembly with a fiber optic cable, a supporting member used therein, and a method of assembling the fiber optic connector to the fiber optic cable. A member (41) which is used to fasten reinforcing members (105) extending from the fiber optic cable (100) is disposed in the vicinity of a rear end of an inner housing (40) of fiber optic connector (10). A supporting member (50) is fastened by crimping to an end portion of the fiber optic cable (100). An appropriate stripping operation is performed on the end portion of the fiber optic cable (100) so that optical fiber (150) and the reinforcing members (105) are exposed. Recesses (55a, 55b), which hold the reinforcing members are located in the supporting member (50).

Abstract: The inventive relay has a base body in the form of a coil body (1), the base body supporting a core (16), a yoke (20), an armature (22) and a contact spring (23) which is connected to the armature. Fixed contact supports (34) and a contact spring connection pin (5) which consist of semi-finished wire with a preferably rectangular or square cross-section are embedded in a flange (12) of the coil body (1). The inventive electromagnetic relay is therefore very simple to produce. There is no wasted material, no punching tools are needed for the contact connection parts and since no particles of plastic are abraded by insertion, there is no risk of this impairing the quality of the relay.

Abstract: A fiber-optic connector having a transparent connector housing, having a fiber receptacle hole for receiving a fiber-optic cable end which has an insulating sheath and an optical waveguide, the connector housing having an opening which extends transversely with respect to the fiber receptacle hole and is connected thereto, the connector including a fiber holding clip that can be introduced through the opening in order to retain the fiber-optic cable end, that is positioned against a stop, the fiber holding clip being pretensioned in such a way that the fiber-optic cable end is guided in follow-up fashion against the stop in the event of length variations.