Abstract: A radio wave reception converter receives a radio wave and converts the radio wave into an electric signal, and includes a horn introducing a radio wave, and a waveguide arranged at the rear of the horn for guiding a radio wave introduced by the horn. An insulation sheet is located between the waveguide and the horn to seal hermetically the interior of the waveguide and the horn. The connecting part between the waveguide and the horn is covered with an exterior cabinet. The front opening of the horn is covered with a feedome. The structure facilitates the connecting work between the waveguide and the horn, and can ensure airtightness at the connecting part.

Abstract: The structure of an antenna device is simplified to reduce the size and cost. In an antenna case having a top cover and a bottom plate joined with each other, an antenna module receiving a signal transmitted from a GPS satellite, a low noise amplifier circuit (LNA circuit) directly provided on the ground plane of the antenna module for amplifying the signal received by the antenna module, and a shield case that shields the LNA circuit are provided.

Abstract: A microwave radio frequency bidirectional energy flow-capable antenna method and related antenna of the physically conformal microstrip transmission line, traveling wave and leaky wave characterizations; the antenna is especially suited to vehicle mounting. The disclosed antenna operates in an EH1 or other above dominant mode energy wave propagation configuration, a configuration at least partially achieved by an array of selected-location radiating element shortings to an antenna-underlying transmission line ground plane element. Comparisons of the disclosed antenna with characteristics of a similarly classified antenna of somewhat lesser desirable but know characteristics are included.

Abstract: The present invention provides a method to measure antenna efficiency using the cavity method. In particular, the present invention provides a tunable cavity that can be tuned to avoid the anti resonance and antenna-cavity coupling problems. In particular, tuning probes and/or variable volumetric sizing of the cavity are used to tune the cavity to avoid the anti resonance and antenna-cavity coupling.

Abstract: A system for remotely controlling an electrical switching device is disclosed. The system includes a mounting fixture configured to be mounted in a wall. An electrical switching device is supported by the mounting fixture. The system also includes a cover configured to cover at least a portion of the mounting fixture. The system further includes a shielding plate configured to have a high electrical conductivity. The shielding plate is mounted proximate to the mounting fixture between the cover and the electrical switching device. The system also includes a directional, non-isotropic radio frequency (RF) antenna sized to fit within the cover and configured to transmit RF frequency signals. The RF antenna is located between the shielding plate and the cover at a predetermined distance from the shielding plate. The predetermined distance is selected to increase the capability of the RF antenna to send and receive the RF signals.

Abstract: Methods, apparatuses and systems directed to a wireless network interface supporting directional antenna diversity. Directional diversity, in one embodiment, makes use of antennas with higher gain and non-overlapping patterns to provide communication over a greater area and select the best antenna to receive signals transmitting wireless frames or packets. Certain embodiments optimize wireless network systems using Orthogonal Frequency Division Multiplexed (OFDM) signals where spatial diversity protection provided by spatially-separated, omni-directional antennas is not required. In other embodiments, use and selection of directional antennas allows for sectorization resulting in performance gains such as extended coverage areas, noise reduction, enhanced efficiency, and increased throughput.

Abstract: The present invention provides a broadband slot array antenna that can be implemented with lower cost by using a single dielectric layer and a metal layer, and makes easy to implement an active integrated antenna. The broadband slot antenna includes: a dielectric layer under which a microstrip feedline is formed; a ground formed on the dielectric layer and electromagnetically coupled with the microstrip antenna through a slot; and a reflection plane placed under the microstrip feedline in order to prevent board surface waves from being radiated and enhance antenna gain.

Abstract: A planar antenna is formed of a circuit substrate and a slot line formed on the circuit substrate for guiding an electromagnetic wave in an axial direction thereof, the planar antenna emitting the electromagnetic wave at an end part of said slot line, wherein the end part has a curved shape forming a focal point at a location on an axis of the slot line with offset by a distance of about a quarter wavelength of the electromagnetic wave, and wherein there is provided a conductor pattern having a length of about a half of the wavelength of the electromagnetic wave at the focal point.

Abstract: A candle with a decorative light element is provided. A light emitting device is disposed within the main body of the candle, and a sensor connected to the light emitting device detects the presence of a flame on the wick. When a flame is detected by the sensor, the light emitting device is activated. The portion of the candle from which the wick projects is preferably substantially opaque, and the portion of the candle in which the light emitting device is disposed is preferably at least partially light transmissible or translucent, so that the glow of the flame does not interfere with the glow of the light emitting device within the candle.

Abstract: An organic light-emitting panel includes a data line, a scan line, a voltage applying line, a switching device, an organic light emitting device and a driving device. The voltage applying line satisfies a condition expressed as ? ? ? V ? ( max ) n < A ? ? ? ? Vdata GS n ? [ Volt ] , wherein ?Vmax is a maximum voltage drop, ‘n’ is a number of pixels that are electrically connected to the voltage applying line, ‘A’ is a correction coefficient that is in range from about 1 to about 4, ?Vdata is a voltage difference between the gray scales, and GS is a number of gray scale. According to the organic light-emitting panel, the voltage drop of the voltage applying line is reduced.

Abstract: A control circuit for a lighting system allows analog control over a first range of illumination intensities in which the intensity of the illumination source varies in proportion to the voltage level of the control signal. The circuit provides for improved dimming and color mixing capability by allowing pulse width or frequency modulation control in addition to analog control over a second range of illumination intensities.

Abstract: An image display device which has a display element that optically modulates an incident light for displaying an image. A lamp is a light source of the incident light to the display element. A lamp driver drives the lamp. A lamp power level calculator calculates a driving power level of the lamp corresponding to a level of an input video signal. A lamp temperature controller controls a lamp temperature depending on changes in the input signal from the lamp power level calculator so as to change the lamp temperature within a predetermined range in response to fluctuations of the input video signal. This image display device can further include a projection lens for projecting and displaying images formed in the display element on a screen.

Abstract: A signal receiving system includes a variable directivity antenna having its directivity varied in accordance with a control signal applied thereto. A control signal generator generating the control signal is provided in a receiving apparatus. The receiving apparatus includes also a modulator operating to ASK (amplitude-shift-keying) modulate a carrier with the control signal from the control signal generator into an ASK modulated signal. The ASK modulated signal is applied through a transmission line to the variable directivity antenna, and a controller associated with the variable directivity antenna demodulates the ASK modulated signal to recover the control signal for use in varying the directivity of the variable directivity antenna.

Abstract: Electromagnetic absorbing devices are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a base resin host. The ratio of the weight of the conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers to the weight of the base resin host is between about 0.20 and 0.40. The micron conductive powders are formed from non-metals, such as carbon, graphite, that may also be metallic plated, or the like, or from metals such as stainless steel, nickel, copper, silver, that may also be metallic plated, or the like, or from a combination of non-metal, plated, or in combination with, metal powders. The micron conductor fibers preferably are of nickel plated carbon fiber, stainless steel fiber, copper fiber, silver fiber, or the like.

Abstract: A PDP driving apparatus and a gray level expressing method thereof that improves the expression of the gray level and reduces pseudo-contour. The average signal level of one frame data of an input image signal is calculated to determine a sustain pulse number, and an inverse gamma correction gray level corresponding to the sustain pulse numbers is expressed with reference to inverse gamma correction tables selected according thereto. The sustain pulse numbers determined according to the signal level are divided into a plurality of groups, and then are converted to the subfields depending on the sustain pulse numbers corresponding to the respective groups. In that situation, the sustain pulse numbers at the subfields corresponding to the respective groups are different from each other.

Abstract: A multi-frequency antenna module includes first and second radiating elements disposed on a substrate and spaced apart from each other. A serpentine first transmission line conductor of the first radiating element and a second transmission line conductor of the second radiating element contact electrically and respectively first and second electrical contacts on a circuit board in an electronic apparatus when the substrate is mounted in a housing of the electronic apparatus. The first radiating element further includes at least one conducting line that is disposed parallel to second transmission line segments and that interconnects an adjacent pair of parallel first transmission line segments. A grounding line conductor is disposed on the substrate, is coupled electrically to the first radiating element, and contacts electrically a third electrical contact on the circuit board when the substrate is mounted in the housing.

Abstract: An antenna assembly including a ground plane and a generally planar cross-slot antenna, spaced from the ground plane and arranged generally parallel thereto, the generally planar cross-slot antenna including a generally rigid dielectric substrate having formed on a first side thereof, a metal layer which defines mutually spaced rectangular slots at which the metal layer is not present and having formed on a second side thereof, there are defined feed lines extending radially outwardly from a central junction thereof, each to cross a corresponding one of the rectangular slots.

Abstract: A method of installing a satellite dish mast, comprises providing a mast member including a generally cylindrical wall and having an aperture therethrough, and providing a level mounted interior of the mast member but visible from outside the mast member through the aperture in the mast member; and adjusting the position of the mast member using the level and securing the position of the mast member.

Abstract: In a loop antenna including a circuit board, a cylindrical body standing on a surface of the circuit board, and a loop antenna element formed on the cylindrical body along the peripheral surface, a tubular insulator member is placed with some space around the cylindrical body. A conductor ring is formed on the tubular insulator member along the peripheral surface, and is placed on an intermediate position between the surface of the circuit board and the plane formed by the loop antenna element. A conductor wall is placed with some space around the cylindrical body on an intermediate distance between the surface of the circuit board and the plane formed by the loop antenna element into height.

Abstract: A structure for mounting an antenna device on a first side of a panel body is disclosed. A first fixation member includes a first end having a first width, a second end, and a slit connecting the first end and the second end. A protrusion is protruded from the antenna device and fitted into the first end of the first fixation member. A second fixation member is fitted into the second end of the first fixation member while being coupled with the protrusion in a screwing manner. The first width is smaller than a third width of an aperture formed in the panel body when the protrusion and the second fixation member are in a first screwing position, so that the protrusion, the first fixation member and the second fixation member are allowed to pass through the aperture from the first side to a second side.