Abstract: The present invention comprises a substantially omnidirectional antenna with minimal gain variation over the 360 degree azimuth. A plurality of biconical antenna elements are stacked, wherein a feed line passes through the center of the biconical antenna elements. The feed line is designed to provide the proper quantity of power to each biconical antenna element without the use of a power divider. Each biconical antenna element is formed by two truncated flared apart reflecting surfaces. Each biconical antenna element is attached to a nonconductive collar above and below.

Abstract: The invention relates to a shielded electrical connector comprising an insulating front housing part (2) and a plurality of juxtaposed contact lamellas (3), said contact lamellas (3) consisting of a mating contact portion (4) received in the front housing part (2), an intermediate portion (5) molded into an insulating material, as well as a rear contact portion (6) following said intermediate portion (5). According to the invention a rear housing part (1) is provided for shielding between the intermediate portions (5); said rear housing part a) receives the intermediate portions (5), b) separates the same from each other in said rear housing part (1) by continuous partition walls (10), and c) the rear housing part (1) is provided with a metallization layer for shielding.

Abstract: An ultra broadband traveling wave divider/combiner (TWD/C) with a two section power splitter with an isolation resistor connected in series with a capacitor across the outputs of each set of transmission lines in the first and second sections. The TWD/C may be formed on a GaAs substrate in MMIC realization. The transmission lines may be formed using microstrip lines on a dielectric. A capacitor may be used with an input impedance step down unit to increase the bandwidth of the TWD/C.

Abstract: A multi-band in-series antenna assembly comprising a resonator and a ground plane of a wireless communication device. The resonator element includes first and second conductive portions which are electrically connected in series to each other by a conducting element. The conductive portions and the conducting element are provided upon a dielectric substrate which is oriented in a superposed and divergent relation relative to the ground plane of a wireless communication device. The first and second conductive portions include inwardly facing edges and outwardly facing edges (relative to the wireless communication device) which define the shapes of the first and second conductive portions, respectively. The first conductive portion also includes a ground attachment point, a feed attachment point and a conducting element attachment point which may be operatively connected to a ground plane, a radio frequency input/output port, and the conducting element, respectively.

Abstract: An omni-directional antenna assembly is provided for wireless communications devices requiring multiple polarization characteristics. An antenna assembly for a communications device operating at a predetermined wavelength and having a transceiver circuit including a signal output and a ground plane, the antenna assembly including a conductive planar element disposed away from the ground plane and a conductive leg member coupled to the planar element proximate a perimeter, the planar element being disposed a distance away from the ground plane of the communications device to define a region capable of receiving one or more components associated with the wireless communications device.

Abstract: An earth ground terminal provides an electroconductive substrate part and an electroconductive spring contact which protrudes integrally from one edge of the substrate part toward the side opposite to the substrate part. Through holes which have undergone a burring process are formed in the aforementioned substrate part. The earth ground terminal is used to prevent electromagnetic inductive interference, high-frequency inductive interference, etc. The earth ground terminal is effective when a printed substrate is grounded by a shield plate or a chassis.

Abstract: In a first aspect, an antenna for use at a particular frequency or in a frequency band including said particular frequency, comprises a conductive ground plane having a length in at least one dimension of about a quarter wavelength at said particular frequency or more, and first and second crossed conductive driven elements arrayed over at least a portion of said ground plane, wherein the elements in the region in which they cross are spaced apart so as to avoid electrical contact and any substantial capacitive coupling to each other, each element is about a quarter wavelength electrically at said particular frequency, each element has at least one end portion generally perpendicular to said ground plane and at least one further portion, said elements and ground plane generally defining a volume, at least one end of each driven element is electrically coupled to said ground plane, and the elements are fed ninety degrees out of phase with respect to each other.

Abstract: The relay comprises a base body (27), a coil (1), a core arrangement (3), an armature (10) and a contact system. The contact spring (16) is configured as an arc and arranged to be connected with the armature (10) in such a way that it is subjected to uniform, low mechanical loading. As a result a material can be used for the contact spring (16) which presents high electrical conductivity, so that the forward resistance of the relay is reduced. The contact spring (16) and armature (10) are arranged in such a way that a relay with a compact structure can be obtained.

Abstract: A jackscrew system preventing undesired problems during mating and de-mating of miniature electrical connectors. The jackscrew includes a thrust shoulder that separates the jackscrew threads from the remainder of the shaft. A “C-shaped” retaining ring is closed onto a diameter of the jackscrew shaft adjacent shoulder and the head of the jackscrew. A counter-bore is provided in the plug connector body into which the crimp ring enters when under the load of de-mating the connector from the receptacle. The counter-bore acts to restrict the crimp ring from opening under mating and de-mate forces when the thrust shoulder applies such forces against the crimp ring land thereby against the plug body, and thus assures retention of the crimp ring under mating and de-mating operating conditions.

Abstract: A ferrule container for holding a plurality of ferrules retaining a multiplicity of optical fibers. The ferrule container includes outer walls defining a plurality of parallel ferrule passageways for holding a plurality of ferrules, and a ferrule holder including a spring holder and a compression spring. The spring holder and one of the outer walls are formed with mutually cooperating structure including a latching nose and a latching nose opening cooperating to orient and hold the spring holder in at least one of the ferrule passageways. A connecting configuration is also provided for connecting a multiplicity of optical fibers including a board housing with a first ferrule and a bushing housing with a second ferrule.

Abstract: The invention discloses a slot antenna having a pair of orthogonally oriented front and rear reflector panels. In one embodiment, the antenna assembly includes first and second front panels oriented approximately orthogonally to each other, said first and second front panels being coupled together and having a substantially elongate slot defined upon at least a portion of each of the first and second front panels, and first and second rear reflector panels oriented approximately orthogonally to each other, and disposed proximate the first and second front panels, and a feed terminal coupled to one of the first or second front panels, said feed terminal being coupled to an input/output RF connection point. The slot antenna according to the present invention may be disposed within an associated wireless communications device relative to a ground plane element of a printed wiring board, or may be disposed separately away from the associated wireless communications device.

Abstract: A resonator element for use with a wireless communication device. The resonator element is substantially splayed and includes first and second conductive portions which are in divergent relation and which are operatively connected to each other by a conducting element. The first conductive portion includes a ground attachment member and a feed attachment member which may be operatively connected to a ground plane and a radio frequency input/output port, respectively. The resonator also includes an angled slot which extends through the first conductive portion, the conducting element, and partially into the second conductive portion. A significant feature of the present invention relates to the sizing of the slot portion of the resonator element. This slot is much smaller than the wavelength of incident radiation, which is a major advantage over previous, prior art slot antenna designs.

Abstract: A low specific absorption rate broadband antenna assembly for use with a wireless communication device. The antenna assembly includes a driven element and a parasitic element which are operatively connected to a radio frequency input/output port and a ground plane, respectively, and which are superposed above a predetermined region of a ground plane having a predetermined configuration. The driven and parasitic elements may take the form of traces or wires which are disposed away from each other by a distance related to the frequency of operation. The traces may be formed on one side of a suitable dielectric substrate such as a printed circuit board, while the wires may be self supporting and not requiring a dielectric substrate.

Abstract: An antenna assembly including a resonator element which is operatively connected to the ground plane of a wireless communication device (WCD) is described. The resonator element comprises a flexible resonator support substrate of dielectric material which supports a conductive element or portion. The flexible nature of the substrate facilitates coupling to the ground plane of a WCD at a variety of locations including the interior, the exterior, or within a portion of the housing of the WCD itself. The resonator element may be provided with a dielectric support element which operatively connects the resonator element to the ground plane of a printed wiring board of a WCD. The support element includes a predetermined support edge portion which helps maintain the resonator element in a preferred predetermined shape, and a bottom edge with a conductive strip portion which is used to operatively connect the support element to a ground plane.

Abstract: A male contact 10 has an elongated contact pin 12 and terminal 24. The contact pin 12 and the terminal 24 extend along a longitudinal axis 14. The contact pin 12 has a first end 16, a second end 18, an upper surface 20 and a lower surface 22 and is quadrangular in cross-section, and in a preferred mode is square in cross-section. The terminal 24 has a first section 26 and a second section 28 spaced therefrom. The first section 26 has a pair of jaws 30, 32, in crimping engagement with the upper contact surface 20. The jaws are attached to a band or ribbon 34 that is in contact with the lower surface 22 of the contact pin 12. A box structure 36 is positioned between the first section 26 and the second section 28 and has an upper surface area 38 and a lower surface area 40. A polarizing key 42 is formed in the lower surface area 40, as by stamping. The key may be formed asymmetrically with respect to the longitudinal axis.

Abstract: For use with an asymmetrical half-bridge power converter having a primary switching circuit coupled to a primary winding of a transformer and a rectifier coupled to a secondary winding of the transformer, a reverse recovery circuit a method of operation thereof. In one embodiment, the reverse recovery circuit includes an inductor that reduces current spikes in the primary switching circuit caused by a reverse recovery phenomenon associated with the rectifier. The reverse recovery circuit also includes a diode, coupled to the inductor, that clamps a voltage across the rectifier.

Abstract: A hand held wireless device, such as hand-held data device or cellular telephone, has a simple internal or partly internal antenna system. The antenna system consists of an essentially internal or partly internal asymmetrical dipole with quarter-wave resonator section and radiating planar section, in conjunction with a planar parasitic element closely spaced to the asymmetrical dipole. The radiating planar section may be the ground traces of the HHWCDs printed wiring board PWB.

Abstract: A ferrule for optical waveguides comprises a plug housing (31) adapted to be mated with another plug housing in a direction of insertion (32). The plug housing (31) has at least one receiving portion (38) for receiving a multiple optical waveguide and is made from thermoplastic plastics material having elongate filler particles (47) admixed thereto. At least in a surrounding region of the receiving portion (38) the filler particles (47) are arranged such that their direction of longitudinal extension runs at least in part transversely to the direction of insertion (32).

Abstract: An electrical connector that comprises an electrically insulating housing having a front end and a back end displaced along a longitudinal axis. An electrical contact receiving aperture is formed in the housing and is arrayed parallel to the longitudinal axis. The back end of the connector housing further includes a contact receiving entrance that has a given cross-sectional, one-way footprint and has a given length “L” along the longitudinal axis. An electrical contact is positioned in the contact-receiving aperture, and has the same cross-sectional, one-way footprint as the entrance. At least a portion of the longitudinal length of the contact, designated “L1” is sufficient to retain engagement with the contact receiving entrance until the contact enters the electrical contact-receiving aperture in the insulating housing.

Abstract: A hybrid circuit with a heat dissipation system includes a terminal arrangement wherein at least one of the connecting pins (5) to solder the hybrid circuit (1) on a printed board has a heat transition resistance to the hybrid circuit (1), which is greater in relation to the other connecting pins (2) in such a way that the connecting pin (5) does not reach the melting temperature of the solder used at a given power level.