Abstract: A differential PIN diode attenuator (450) that selectively attenuates a differential analog input signal. The two parts of the differential signal are applied to separate input lines (452, 454) and are 180° out of phase with each other. One input line (452) is coupled to a first attenuation path (456) including a resistor and a first non-attenuation path (458) including a PIN diode (462). The other input line (454) is coupled to a second attenuation path (466) including a resistor and a second non-attenuation path (468) including a PIN diode (472). The diodes (462, 472) are biased by a DC bias signal so that the differential analog signal can bypass the attenuation paths (456, 466). The DC bias signal is applied halfway between the input lines (452, 454) where the two parts of the differential signal cancel. A shunt diode (490, 492,) and parallel shunt resistors are provided in combination with the attenuation resistor to allow it to have a relatively small value.

Abstract: A multifunction printed antenna for wireless and telematic applications. In one embodiment, GPS and satellite radio patch antenna elements are printed on one side of a printed circuit board and AMPS, PCS, GSM and terrestrial radio slot antenna elements are etched in a ground plane on an opposite side of the same printed circuit board. In an alternate embodiment, the GPS and satellite radio patch antenna elements are elements mounted on one printed circuit board and the AMPS, GSM, PCS and terrestrial radio slot antenna elements are etched in a ground plane on another printed circuit board rigidly secured orthogonal to the GPS and satellite printed circuit board. The AMPS, GSM and PCS circuit board can be curved to reduce the nulls at the edges of the circuit board. Further, the edge of the AMPS, GSM and PCS circuit board that contacts the GPS and satellite radio circuit board can have a saw-tooth pattern so that edge currents are reduced.

Abstract: A gas jet nozzle (20, 60) for an extreme-ultraviolet light (EUV) source, including a housing (22, 62) having a front (24, 64) and a back (26, 66). The housing (22, 62) is coupleable to a primary gas source (44) and a secondary gas source (46) and is adapted to. expel primary gas (36, 76) and secondary gas (42, 82) from the housing front (24, 64). The housing (22, 62) has a gas-expelling primary channel (39, 70) located centrally within the housing (22, 62) and a gas-expelling secondary channel (34, 74) proximate the primary channel (39, 70). The primary channel (39, 70) may be circular and the secondary channel (34, 74) may be annular, surrounding the primary channel (39, 70). A secondary gas stream (42, 82) expelled from the secondary channel (34, 74) restricts the lateral expansion of a primary gas stream (36, 76) expelled from the primary channel (39, 70), optimizing gas jet properties and reducing heating and erosion of the nozzle (20, 60).

Abstract: A power control system for a multi-carrier base station transmitter is capable of controlling power levels of individual RF carriers. The power control system has a multi-channel amplification system for converting a plurality of analog input signals into a plurality of amplified carrier signals. The amplification system also generates a plurality of reference signals corresponding to the amplified carrier signals. Furthermore, the amplification system generates a multi-carrier signal, where the multi-carrier signal includes a summation of the amplified carrier signals. A correlating power detection system is connected to the amplification system, where the correlating power detection system generates total power control signals based on the reference signals and the multi-carrier signal.

Abstract: A circuit layout for a lumped element dual-balun (248) where the elements of the dual-balun (248) are patterned on a monolithic substrate (250) in a compact design. The dual-balun (248) includes four inductors (252, 254, 256, 258) and four capacitors (340, 342, 360, 388) electrically coupled together to provide two zero phase RF output signals and two 180° phase RF output signals. The inductors (252, 254, 256, 258) are symmetrically disposed in a rectangular area on the substrate (250). A first pair of the inductors (252, 254) is positioned at one end of the rectangular area, and a second pair of the inductors (256, 258) is positioned at an opposite end of the rectangular area. The capacitors (340, 342, 360, 388) are formed on the monolithic substrate (250) in a central circuit area (260) between the first pair (252, 254) and the second pair of inductors (256, 258).

Abstract: A nozzle (46) for a laser-plasma EUV radiation source that provides thermal isolation between the nozzle body (48) and the target material flowing therethrough. A target delivery tube (72) is provided that extends through the nozzle body (48). The delivery tube (72) has an expansion aperture (80) positioned behind an exit collimator (50) of the nozzle body (48). The delivery tube (72) is made of a low thermal conductivity material, such as stainless steel, and is in limited contact with the nozzle body (48) so that heating of the nozzle body (48) from the plasma does not heat the liquid target material being delivered through the delivery tube (72). The expansion aperture (80) has a smaller diameter than the exit collimator (50).

Abstract: A coaxial turnstile junction (10) for combining and directing both satellite uplink and downlink signals. The junction (10) includes a tapered section (30) to provide better impedance matching of the downlink signal between a waveguide structure (14) and a plurality of symmetrically disposed downlink waveguides (38-44). The junction (10) includes a first end (26) that is in signal communication with an antenna feed horn (12). The junction (10) includes a cylindrical outer wall (28) and a cylindrical inner wall (18) that are coaxial and define an outer chamber (22) and an inner chamber (24). The outer wall (28) extends into the tapered section (30) where the tapered section (30) contacts the inner wall (18) and closes the outer chamber (22). The waveguides (38-44) are positioned around the outer wall (16) and are in signal communication with the outer chamber (22) through openings in the tapered section (30).

Abstract: An optical device (10) including a first semiconductor layer (12) on which is deposited a dielectric layer that is patterned and etched to form dielectric strips (14) as part of a diffraction grating layer. Another semiconductor layer (16) is grown on the first semiconductor layer (12) between the dielectric strips (14) to provide alternating dielectric sections (14) and semiconductor sections. In an alternate embodiment, a dielectric layer is deposited on a first semiconductor layer (64), and is patterned and etched to define dielectric strips (66). The semiconductor layer (64) etched to form openings (68) between the dielectric strips (66). A semiconductor material (70) is grown within the openings (68) and then another semiconductor layer (72) is grown over the entire surface after removing the dielectric strips. Either embodiment may be modified to provide a diffraction grating with air channels (20).

Abstract: An exterior rear view mirror assembly is disclosed which incorporates a warning light actuatable in conjunction with the vehicle turn signals to alert adjacent motor vehicles of an anticipated turn. The warning light is integrated into a first decorative cover member and may be connected to the vehicle turn signal circuit by way of connectable electrical leads or by an integrally formed plug and outlet arrangement. A second decorative cover member may be substituted for the first decorative cover member when it is not desired to incorporate the warning light.

Abstract: A method of constructing stained glass window systems is described. The stained glass window system includes a stained glass panel that includes a stained glass member joined to a seam member of a frame member with a joining material. A metal decorative silhouette is placed on one of the major surfaces of the stained glass panel and is joined thereto by applying a joining material to an aperture formed in the silhouette. In this manner, the silhouette obscures the seam member of the frame member. Optionally, a second silhouette may be joined to the opposing major face of the stained glass panel so that the design of the silhouette may be viewed from either side of the stained glass window. Additionally, the stained glass window system can be provided with at least one glass panel member, a peripheral frame member and peripheral insulation member.

Abstract: A sideview mirror for a vehicle. A pivot assembly is provided between the mirror head and the mounting bracket. The pivot assembly allows the mirror head to pivotally rotate with respect to the mounting bracket. A load support structure provides a design to provide improved resistance to cantilever forces imposed on the mirror.

Abstract: The present invention relates to a modified intake manifold having short runner valves in the manifold tuning valve. Anti-chatter devices are disclosed for reducing shaft chatter without placing friction on the shafts. A lost motion linkage is used to ensure closure of the short runner valves. Radiused seating surfaces are used for seating of the manifold tuning valve.

Abstract: A method of manufacture of high optical quality transparent plastic for use as a mirror or glass substitute.

Abstract: An EUV source (82) that delivers a laser beam (94, 96) asymmetrical relative to first collection optics (88). The first collection optics (88) has an opening (90, 92) for the laser beam (94, 96) that is positioned so that the laser beam (94, 96) is directed towards the plasma off-axis relative to the collection optics (88). Thus, the strongest EUV radiation (98, 100) is not blocked by the target production hardware (84).

Abstract: A receiver (10) for a wireless telecommunications system that provides relatively wideband signal processing of received signals without increased signal distortion so that multiple received signals can be simultaneously processed. The receiver (10) includes a specialized LNA (16), frequency down-converter (18) and ADC (20) to perform the wideband signal processing while maintaining receiver performance. The frequency down-converter (18) employs a suitable mixer (28), BPA (32), attenuator (34), and transformer (36) that are tuned to provide the desired frequency down-conversion and amplitude control over the desired wideband. The down-converter devices are selected depending on the particular performance criteria of the ADC (20). A specialized digital channelizer (22) is included in the receiver (10) that receives the digital signal from the ADC (20), and separates the signals into the multiple channels.

Abstract: A table top band saw that is almost entirely assembled of molded plastic components to provide for ease of manufacture and assembly. The band saw includes a plastic housing enclosing a pair of opposed plastic wheels that are configured to allow for rotation of an endless saw blade. A plastic work table is secured to the housing such that the saw blade travels through the table and provides a location for supporting and sawing a work piece. A stabilizer and coolant feed device is positioned above the table, and allows a cooling fluid to flow onto the blade without dripping.

Abstract: A vehicle door mirror having a housing. The housing connects to a vehicle door via a stem. An intermediate member is inserted between the housing and the vehicle door to effect relatively smooth abutment between the intermediate member and each of the housing and the vehicle door. The cylindrical stem extends from the housing through the intermediate member and through the vehicle door. The stem includes primary engagement members to engage with complementary engagement members formed in a mounting hole of the door. The engagement members prevent removal from the mounting hole when the stem is in a predetermined orientation. A spring is compressed between the housing and the stem to cause retraction of the stem inward of the housing. Such inward movement urges the primary engagement members into engagement with the complementary engagement members.

Abstract: A method for actuating an onboard refueling vapor recovery (ORVR) valve to selectively enable passage of fuel vapor from a fuel tank to a collection canister for the fuel vapor. The method includes determining whether a filling event is occurring and determining a fuel level within the fuel tank. The ORVR valve is selectively opened and closed in connection with whether a fueling event occurs and whether the fuel tank is full.

Abstract: A connector for a fluid conduit is provided herein. The connector includes a conduit structure and an annular seal member. The conduit structure has a frustro-conical surface and a seal groove. The frustro-conical surface may be an external surface or an internal surface, depending upon the desired configuration of the connector. The seal groove is formed into the frustro-conical surface along an axis perpendicular to the frustro-conical surface. The seal groove is preferably defined by a constant radius. The annular seal member is coupled to the conduit structure and disposed at least partially in the seal groove.

Abstract: A filtration device for use in filtering air used to purge a vapor storage canister used in connection with a fuel vapor recovery system of an automobile. The device includes a housing. In some instances, the housing may be integral to another component. The housing has a chamber having an arcuate inner surface. Air flowing into the chamber through an inlet port strikes the arcuate interior surface and is redirected such that the air rotates in said chamber. The centrifugal force of the rotating air filters out any contaminants of sufficient mass contained therein. The filtered air is removed via an outlet port positioned near the longitudinal-axis of the chamber. Contaminants removed from the air fall due to gravity or a secondary air flow pattern into a collection portion of the housing.