Abstract: A dual frequency antenna providing nulling of adjacent radio signals. The antenna is formed on a single substrate of dielectric material and features a first antenna for a first frequency on top surface of the substrate mutually coupled to a second antenna formed for reception of a second frequency on the bottom surface of the substrate. A single antenna feed communicates through the substrate with the first antenna communicates both received frequencies to an attached device. Feeding the single antenna feed through the substrate wall inside the interior of both antenna perimeters provides for an unobstructed view above the first antenna. The nulled portion of the reception pattern may be steered by tilting the antenna.

Abstract: According to this method, before a high-frequency pulse train is applied between the two electrodes of a pair carried by one plate, at least one sustain pulse is applied between an electrode of this pair and an electrode of another plate of the panel. As the sustain discharges are not generated between the same electrodes as the stabilized discharges, the electrodes may be moved further apart so as to lower the stabilization frequency without thereby having to increase the sustain voltages.

Abstract: A meter register includes a register body having a rotatable drive shaft coupled thereto. A drive gear is attached to the drive shaft and at least one follower gear is rotatably attached to the register body and coupled with the drive gear. An antenna is provided that includes a first electrically conductive sheet, a second electrically conductive sheet, and an axially extending leg electrically connected to the first electrically conductive sheet and the second electrically conductive sheet. A first electrically conductive sheet is spaced an axial distance away from the second electrically conductive sheet wherein at least a portion of the register body is sandwiched between the first electrically conductive sheet and the second electrically conductive sheet. The meter register can be attached to a meter body and, further, an auxiliary antenna can be attached to the meter register. Also disclosed is a method of operation of a utility measuring system that incorporates the above-described meter register.

Abstract: A chip antenna, which is used for a mobile communication terminal, local area networks (LAN), or at blue tooth (BT) band, includes: a base block made of one selected from a diaelectric material and a magnetic material and including an upper surface, a lower surface, and four side surfaces disposed between the upper surface and the lower surface; inverted F-type first conductive patterns formed on a part of the base block; inverted L-type second conductive patterns formed on another part of the base block and connected in parallel with the first patterns; and parasitic elements spaced from the first and second patterns by a designated distance and forming an electromagnetic coupling with the first and second conductive patterns.

Abstract: Disclosed is an antenna and a method of transmitting and receiving broadband circularly polarized signals. The antenna includes a substrate that has a first surface and an opposing second surface, and a first conductive element that is positioned at the first surface of the substrate. The first conductive element defines an aperture therein the first surface of the substrate. The antenna also includes a conductive strip positioned at the opposing second surface of the substrate. The conductive strip is electrically isolated from the aperture by the substrate therebetween, and, provides a transmission line that generates electromagnetic coupling with the aperture. Further, the antenna has a symmetric conductive element in the form of a planar polygon that is positioned relative to the aperture for broadband coupling of electromagnetic radiation. Furthermore, the opposing corners that are formed on the symmetric conductive element are configured to induce phase quadrature.

Abstract: A PCB antenna for receiving distinct polarization signal is disclosed, which is formed a plurality of circular electrodes printed on a substrate. There are pluralities of metal splices between the circular electrodes so that each circular electrode is short in order to obtain the best sensitivity for receiving the different polarization signal. The PCB antenna is connected with a signal processing unit via the coaxial fed or the microstrip fed for transmitting the signal the PCB antenna received.

Abstract: A backlight unit for a liquid crystal display panel includes a plurality of lamps each having a first electrode and a second electrode extending along a length of the lamp and at least one window formed by a first gap between the first and second electrodes, and a plurality of motors for rotating each of the plurality of lamps to irradiate light produced by the lamps onto the liquid crystal display panel.

Abstract: An antenna resonant in two or more frequency bands. The antenna comprises three parallel conductive plates disposed in a stacked orientation, with a first dielectric layer interposed between the bottom and the middle conductive plates and a second dielectric layer interposed between the middle and the top conductive plates. The middle conductive plate is smaller than the bottom and top conductive plates. A signal feed is connected to the top and the middle conductive plates; a first shorting pin is connected between the bottom and top conductive plates and a second shorting pin is connected between the middle and the bottom conductive plate.

Abstract: A spontaneous light emitting display device with low power consumption suppresses fluctuation in characteristics of driving elements of light emitting pixels and has no fluctuation in light emitting luminance of a light emitting element. For each of light emitting pixels arranged in a matrix, a respective photoelectric converting portion detects light emitted from the corresponding light emitting pixels is provided, so that a current flowing to the light emitting pixels is controlled by using a voltage produced from the respective photoelectric converting portion. The device suppresses luminance variation of the light emitting pixel even when the conversion gain of the photoelectric portion varies.

Abstract: Several synchronization circuits, a computer, a method of adjusting the operation of an oscillator, and method of operating a power converter are disclosed. The circuits and computer include a switch coupled to a current path. The switch receives a synchronizing signal, and is turned on by an active state of the synchronizing signal, and turned off by an inactive state of the synchronizing signal. The current path is configured to pass a current when the switch is off, and the switch is configured to pass the current when turned on. This abstract is provided to comply with the rules requiring an abstract that allow any reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

Abstract: An RF electric field probe device for measuring an RF electric field intensity in a plasma. The device is composed essentially of an electric field sensing unit and an output unit. The electric field sensing unit is composed of a first electro-optical component positionable in the plasma and operable to modulate light as a function of variations of the RF electric field in the plasma at the fundamental frequency and harmonics of the RF electric field, and a first antenna unit electrically coupled to the first component for coupling the first component to the RF electric field. The output unit is coupled to the electric field sensing unit for providing an output signal containing information relating to the magnitude and frequency of the modulation which occurs in the first component. The probe device may be used to map a plasma region by moving the probe device to any selected point in the plasma region.

Abstract: A three element antenna utilizes a truncated parabolic reflector dish of diameter “d” and focal point “f” and a director plate for receiving and transmitting high frequency signals in conjunction with a substantially horizontal conducting ground plane. The antenna is mounted to a planar transverse end wall, defining the lower truncated end of the parabolic surface, and the antenna elements are proximate to the focal point “f” of the paraboloid that defines the dish. The director plate is positioned at the opening (defining the diameter “d”), is distal to the focal point and the antenna elements, and positions an array of director rods about the antenna elements to focus signals relative to the parabolic surface. The ratio of (f/d) is about 0.01 to about 0.625, and preferably about 0.210.

Abstract: Antenna systems (200, 1300, 1500, 1900, 2000, 2400) comprise a dielectric resonator antenna (210) in the shape of a parallelepiped with right angle corners. The thickness (T) of the dielectric resonator antenna (210) is chosen to be less than the length and height. The antenna systems (200, 1300, 1500, 1900, 2000, 2400) provide have broad band response that is attributed to two or more resonant modes that have center frequencies that are closely spaced in frequency relative to their bandwidths. Additional pass bands can be obtained by placing a conductive strip (1302) along an edge of the dielectric resonator 210. The passband associated with the conductive strip (1302) can be lowered in frequency by capacitively loading the conductive strip (1302). An additional passband can also be obtained by coupling a metal ribbon (2012) to a feed in microstrip (206, 2002) and to the dielectric resonator antenna (210).

Abstract: A multi-band printed monopole antenna (1) includes a substrate (2), a ground portion (4) disposed on the substrate, a radiating portion disposed beside the ground portion and feeder cable (5). The radiating portion comprises a first and second radiating patches, (31, 34) and a first and second connecting patches (32, 33). The second radiating patch resonances at a lower frequency band. A resonance slot formed between the first radiating patch and the ground portion for occurring a secondary resonance in a higher frequency band.

Abstract: A structure (40) with switchable magnetic properties comprises: an array of capacitive elements (44) in which each capacitive element (44) includes a low resistance conducting path and is such that a magnetic component (H) of electromagnetic radiation (12) lying within a predetermined frequency band induces an electrical current (j) to flow around said path and through said associated element (44). The size of the elements (44) and their spacing (&agr;) apart are selected such as to provide a predetermined permeability (&mgr;) in response to said received electromagnetic radiation (12). Each capacitive element (44) comprises a plurality of stacked planar sections (42) each or which comprises at least two concentric spiral conducting members or tracks (46, 48) which are electrically insulated from each other. A switchable permittivity material, such as Barium Strontium Titanate (BST) is provided between the tracks.

Abstract: An AC powered light emitting device is provided. The device includes a plurality of organic light emitting diode (OLED) modules. The modules are arranged into groups of modules where the individual modules of the groups are electrically connected in series. The device may be powered using AC power. A display is also provided. The display includes a plurality of OLED modules arranged to spell out a letter or depict an image.

Abstract: The invention provides a ≧4 kHz repetition rate argon fluoride excimer laser system for producing an UV wavelength 193 nm output. The ≧4 kHz repetition rate argon fluoride excimer laser system includes an argon fluoride excimer laser chamber for producing a 193 nm discharge at a pulse repetition rate ≧4 kHz. The ≧4 kHz repetition rate argon fluoride excimer laser chamber includes magnesium fluoride crystal optic windows for outputting the 193 nm discharge as a ≧4 kHz repetition rate excimer laser 193 nm output with the magnesium fluoride crystal optic windows having a 255 nm induced absorption less than 0.08 Abs/42 mm when exposed to 5 million pulses of 193 nm light a fluence ≧40 mj/cm2/pulse and a 42 mm crystal 120 nm transmission of at least 30%.

Abstract: A circuit element that may generate or be affected by noise or electromagnetic interference may be substantially surrounded by one or more encircling plugs. The encircling plug may be closed by an interconnection layer. The plug may be grounded to reduce the electromagnetic interference or noise generated by or coupled to said passive circuit element.

Abstract: A system and method for wireless communications includes a wireless communications device. The wireless communications device includes a microstrip, line or trace that has been structured to electrically connect to electrical circuitry and electrical components of the wireless communications device and has been adapted to transmit and to receive wirelessly a short-range wireless communications signal. The microstrip, line or trace is formed from branches of conducting material. One or more of the branches may include a specific absorption rate element, such as a specific absorption rate bracket.

Abstract: An antenna assembly and a wireless communication device of the invention are disclosed. The wireless communication device includes a casing, an antenna body, a rotary assembly, and a moving member. The antenna body is mounted in a concave portion of the casing for generating electromagnetic signals. The antenna body is rotated at a predetermined angle. The rotary assembly, connected to the antenna body, rotates the antenna body. The moving member, mounted on the casing, immobilizes or releases the antenna body. Therefore, users can rotate the antenna body simply by moving the moving member.