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1505 results about "High radiation" patented technology

High radiation efficient dual band feed horn

A multiple mode feed horn is provided for transmitting and receiving signals. The feed horn includes a transverse electric throat section, a transverse electric profile section, and a transverse electric aperture section. The transverse electric profile section propagates a first transverse electric (TE) mode. The transverse electric aperture section propagates a second TE mode. The multiple mode feed horn prevents propagation of traverse magnetic modes from said throat section to said aperture section.
Owner:KEENE BUILDING PRODS CORP

X-ray anode and process for its manufacture

The invention relates to an x-ray anode and a process for its manufacture. The x-ray anode is characterized in that the anode material is embodied as a layer on a diamond window. The x-ray anode is preferably used with x-ray units which require as selective as possible x-radiation production to achieve as high as possible radiation intensity. Use in x-ray microscopes in which a high radiation intensity guarantees the highest resolutions is particularly preferred.
Owner:FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV

Compact PIFA antenna

ActiveUS10205239B1Antenna area can be reducedSuitable impedance bandwidthElectromagnetic wave systemSimultaneous aerial operationsPlanar inverted f antennaEngineering
Various planar inverted-F antenna configurations may include an antenna element formed on the top of a PCB and a ground element formed on the bottom of the PCB. Two or more slots may be included in the antenna element for reducing the antenna area while maintaining a suitable impedance bandwidth. A slot may be included in the ground element for reducing the ground area while increasing radiation efficiency. A folded ground may be formed on the top of the PCB for reducing system area while maintaining suitable performance. By moving the folded ground closer to the antenna element and increasing the PCB thickness, significant reductions in system area may be achieved, while maintaining or improving performance in terms of radiation pattern, radiation efficiency and impedance bandwidth.
Owner:ENERGOUS CORPORATION

System and method for enhancing near vertical incidence skywave ("NVIS") communication using space-time coding

A system and method are described in which space-time coding techniques are used to transmit and receive multiple data streams within a near vertical incidence skywave (“NVIS”) communication system. Within the NVIS communication system, multiple independent data streams may be transmitted from a transmitting station at a high radiation angle, approaching or reaching 90 degrees. The data streams are reflected off of the ionosphere of the earth and received by one or more receiving stations. In one embodiment, the space-time coding techniques are multiple-input multiple-output (“MIMO”) signal communication techniques.
Owner:REARDEN

Single particle upset and single particle transient pulse resisiting D trigger

InactiveCN101499788ASingle event upsetCapable of single-event transient pulse performanceSingle output arrangementsElectronic switchingMultiway switchingRadiation resistance
The invention relates to a D trigger used for single particle upsetting resistance and single particle transient pulse in the technical filed of an integrated circuit, comprising two multichannel switches, two delay circuits, two protecting gate circuits and three inverters; wherein, the multichannel switches are used for forming a feedback loop for latching data; the delay circuits are used for generating signals in delay modes; the protecting gate circuits are used for filtering voltage transient fluctuation of the input signals; in the feedback loop of the D trigger, data input signal D and the delayed mode thereof enter the protecting gate circuit; and the output signals of the protecting gate circuit filter the delayed voltage transient fluctuation of the data input signal D and the width of the voltage transient fluctuation is not wider than the delay of the delay circuit. The invention can be applied to application occasions needing higher radiation resistance, leads the single particle upsetting resistance and single particle transient pulse performance of D trigger to reach the same level as a time sampling D trigger; and simultaneously, the increasing of the unit area is less than that of the time sampling D trigger and the working speed is superior to that of the time sampling D trigger.
Owner:SHANGHAI JIAO TONG UNIV

Passive magnetic radome

A radome (202) includes a dome wall (208) formed from a dielectric material wherein at least a portion of the dielectric material includes a plurality of magnetic particles (206). Radomes according to the invention can form dome walls of variable thickness, yet still have high radiation efficiency across a wide frequency band. Magnetic radomes utilize dielectrics including magnetic particles (206) to match the impedances between medium boundaries, such as an air to dome boundary.
Owner:NORTH SOUTH HLDG

Graphene radiation material, and preparation method and application thereof

The invention provides a graphene radiation material, which comprises more than one layer of graphene radiation film. Each graphene radiation film comprises a support layer, a graphene layer and a bonding layer, which are combined with one another, wherein the graphene layer is positioned between the support layer and the bonding layer, and comprises more than one layer of graphene or graphene composite material with a mono-molecule thickness. The invention also provides a preparation method for the graphene radiation material and the use of the graphene radiation material. The material has a high heat-conducting property; and by the material, the radiation effect of an electronic product can be improved, the temperature of the electronic product can be reduced, the use comfort of a user can be improved, the reliability of the electronic product can be improved, and the service life of the electronic product can be prolonged. The graphene radiation films have remarkable cooling effects; and moreover, an industrial preparation method can be adopted, so that cost is greatly decreased, and automatic production is realized. The graphene radiation material can be widely applied to equipment such as smart phones, tablet personal computers, notebooks and the like with small spaces and high radiation requirements.
Owner:深圳市爱诺菲科技有限公司

Method of manufacturing surface textured high-efficiency radiating devices and devices obtained therefrom

The present invention relates to radiation, preferably light emitting, devices with a high radiation emission efficiency and to fabricating these as small devices in an array of such devices. In one embodiment, the emitting devices can be placed in dense arrays. In another embodiment, outcoupling efficiency of the devices is improved, which leads to a reduced power consumption for a given radiation output power. In another embodiment, the speed of the radiation is increased, hence the serial bandwidth per optical channel is increased. The invention further relates to light emitting devices that exhibit uniform radiation emission characteristics. The light emitting devices (diodes, LEDs) of the present invention can be used for applications wherein two-dimensional LED arrays, particularly low-power arrays, are useful, such as in display technology. Active matrix displays relying on liquid crystals (e.g. integrated on CMOS circuitry) could be replaced by LED arrays. Dense and bright one-dimensional LED arrays are useful for example for printing and copying. Also for single LED applications it is important to have a maximum of photons escaping from the light emitting surface. The intensity of light per unit area (the brightness) is larger, and this is useful in many applications. Furthermore, the packaging cost can be reduced. In order to achieve a large global efficiency, many conventional LEDs need an elaborate package that includes a cavity with mirrors, because the light is emitted from more than one surface of the LED.
Owner:SIGNIFY HLDG BV

Electrically programmable nonvolatile variable capacitor

A basic form of a variable capacitive apparatus and its actuating method are disclosed. The apparatus is a simple two-terminal structure and may be set by short duration, low voltage electrical pulses. Materials with perovskite structure or perovskite-related structures, especially colossal magnetoresistive materials, are the active constituents of the apparatus. The apparatus overcomes the shortcomings of its predecessors and offers the advantages of non-volatility, two or multi-level storage, non-destructive reading, free-of-power maintenance and potential high radiation hardness.
Owner:UNIV HOUSTON SYST

Method for manufacturing embedded high-conductivity printed circuit board (PCB)

The invention discloses a method for manufacturing an embedded high-conductivity printed circuit board (PCB). The method comprises the following steps of 1, providing a plurality of PCB core boards and prepregs; 2, pre-slotting on the PCB core boards and the prepregs, slotting at positions where conductive materials are to be embedded on the PCB core boards and the prepregs, and respectively forming slots, wherein the core boards and the prepregs have matched positioning holes; 3, providing the conductive materials and manufacturing conductive elements by using the conductive materials; 4, placing the conductive elements in the slots of the PCB core boards and the prepregs for laminating the conductive elements into PCB multi-layer boards which have component faces and welding faces; 5, laminating the plurality of PCB core boards and prepregs to manufacture PCB multi-layer boards and fixing the conductive elements in the slots by using resins; 6, performing degumming on the surfaces of the PCB multi-layer boards and the conductive elements; and 7, processing the PCB multi-layer boards after degumming to obtain PCB finished products. The method has the advantages of simple manufacturing flows and realization of high radiation, high-speed signal transmission and the like by embedding the conductive materials into the PCB in a laminating manner and matching the conductive materials with the thickness of the PCB.
Owner:DONGGUAN SHENGYI ELECTRONICS

Fluorine-18-marked myocardial perfusion developing agent and preparation method and application thereof

The invention provides a fluorine-18-marked pyridazinone analogue. The general structural formula of the analogue is shown as a formula (A), wherein G is selected from S, O or NH; R1 is alkyl with 1-6 carbon atoms; R2 is halogen or halogenation alkyl; L is phenyl, cyclohexyl or a hexa-heterocycle radical containing heteroatoms; m is 1, 2, 3, 4, 5 or 6; n is an integer of 1-15; and M is methylene or ethoxy. A compound marking method is simple, and has high radiation chemistry yield, high stability, a high myocardium initial uptake value, high target to non-target ratio and low using cost. The pyridazinone analogue is applied to the technical fields of radiopharmaceutical chemistry and clinical nuclear medicine as a novel fluorine-18-marked myocardial perfusion developing agent.
Owner:BEIJING NORMAL UNIVERSITY +1

Hybrid metal organic scintillator materials system and particle detector

ActiveUS7985868B1Minimized quenching effectMinimize quenching effectPolycrystalline material growthOrganic chemistryOctahedronZinc nitrate
We describe the preparation and characterization of two zinc hybrid luminescent structures based on the flexible and emissive linker molecule, trans-(4-R,4′-R′) stilbene, where R and R′ are mono- or poly-coordinating groups, which retain their luminescence within these solid materials. For example, reaction of trans-4,4′-stilbenedicarboxylic acid and zinc nitrate in the solvent dimethylformamide (DMF) yielded a dense 2-D network featuring zinc in both octahedral and tetrahedral coordination environments connected by trans-stilbene links. Similar reaction in diethylformamide (DEF) at higher temperatures resulted in a porous, 3-D framework structure consisting of two interpenetrating cubic lattices, each featuring basic to zinc carboxylate vertices joined by trans-stilbene, analogous to the isoreticular MOF (IRMOF) series. We demonstrate that the optical properties of both embodiments correlate directly with the local ligand environments observed in the crystal structures. We further demonstrate that these materials produce high luminescent response to proton radiation and high radiation tolerance relative to prior scintillators. These features can be used to create sophisticated scintillating detection sensors.
Owner:SANDIA NAT LAB

Panel-form loudspeaker

A panel-form loudspeaker has a resonant multi-mode radiator panel which is excited at frequencies above the fundamental frequency and the coincidence frequency of the panel to provide high radiation efficiency through multi-modal motions within the panel, in contrast to the pistonic motions required of conventional loudspeakers. The radiator panel is skinned composite with a honeycomb or similar core and must be such that it has a ratio of bending stiffness to the third power of panel mass per unit area (in mks units) of at least 10 and preferably at least 100. An aluminum skinned, aluminum honeycomb cored composite can meet this more severe criterion easily.
Owner:QINETIQ LTD

Polarized reconfigurable magneto-electric dipole antenna

The invention discloses a polarized reconfigurable magneto-electric dipole antenna, comprising a square upper PCB board, a square lower PCB board, a feed port and four antenna units. The four antenna units are arranged on the diagonals of the upper PCB board in a central symmetry mode. The lower PCB board comprises a square substrate integrated waveguide resonant cavity and a coupling slot. An inner conductor of the feed port is connected with patches on the upper surface of the lower PCB board. An outer conductor is connected with the patches on the lower surface of the lower PCB board. The polarized reconfigurable magneto-electric dipole antenna provided by the invention has the advantages of simple structure, low loss, wide bandwidth, high gain, high radiation efficiency and convenient switch among three polarized states. The polarized reconfigurable magneto-electric dipole antenna is very applicable to a modern wireless communication system, especially a 5G-band WiFi system.
Owner:SHENZHEN UNIV

Array antenna device

[Object] To provide an antenna device which has a radiation pattern of wide angle, does not generate nulls in the vicinity of a front of an antenna, and has a high radiation efficiency.[Organization] An array antenna device 1 having a plurality of radiation elements has: a dielectric substrate 2; two or more series array antennas 10, 20 which are formed on the dielectric substrate and to which the plurality of radiation elements 11 to 13, 21 to 23 are connected in series by conductor lines 15, 25; a distributor 30 formed in a layer different from a layer of the dielectric substrate where the series array antennas are formed, the distributor distributing power via capacitive coupling to the two or more series array antennas; and a phase adjuster (conductor lines 34 to 37) adjusting a phase of power distributed by the distributor.
Owner:FURUKAWA ELECTRIC CO LTD +1

Radiation-monitoring system with correlated hodoscopes

InactiveUS20150060686A1High Ftest valueLow FtestNuclear energy generationNuclear monitoringHodoscopeStatistical correlation
At least one pair of hodoscope radiation monitors arranged to simultaneously monitor a target region that contains a source of radiation. The hodoscopes are preferably arranged so that their fields of view of the region are approximately orthogonal. The fields of view of the two detectors will overlap in a region that contains the source of radiation. Each of the two detectors will record radiation from the overlap region and, in addition, will record background radiation emanating from other regions within detector fields of view. The present invention provides statistical correlation techniques to estimate the extent to which unusually high radiation originates in the overlap region, irrespective of background in the field-of-view of individual hodoscope detectors. The source of radiation might be spontaneous, might be from an activation process, or might be scattered in from an external beam.
Owner:DEVOLPI ALEXANDER

Miniaturization substrate integrated multi-beam antenna

The invention relates to a miniaturization substrate integrated multi-beam antenna which comprises a metal copper-clad upper layer, a dielectric layer and a metal copper-clad lower layer which are sequentially laminated from top to bottom, wherein the metal-clad upper layer comprises a feed upper meter area, a multi-mode upper meter area and N groups of triangular upper meter areas which are sequentially arrayed from the input end to the radiation end; the multi-mode upper meter area is connected with the feed upper meter area; the N groups of triangular upper meter areas are connected with the multi-mode upper meter area; the metal copper-clad lower layer comprises a feed lower meter area, a multi-mode lower meter area and N groups of triangular lower meter areas; the feed lower meter area, the multi-mode lower meter area and the N groups of triangular lower meter areas are sequentially arrayed from the input end to the radiation end; the multi-mode lower meter area is connected with the feed lower meter area; the N groups of triangular lower meter areas are connected with the multi-mode lower meter area; and the dielectric layer is internally provided with N+1 rows of metallized through holes which penetrate through the feed upper meter area and the dielectric layer and are connected with the feed lower meter area as well as penetrate through the feed upper meter area and the dielectric layer and are connected with the multi-mode lower meter area. The invention has the benefit that a multi-beam antenna structure is compact, thus higher radiation efficiency is acquired.
Owner:CHENGDU RDW TECH CO LTD

High-radiation heat-insulated coating

The invention discloses a high-radiation heat-insulated coating which comprises the following components in parts by weight: 25-37 parts of infrared reflection pigments, 12-20 parts of aluminum-coated hollow microspheres, 15-28 parts of aerogel, 30-55 parts of organic resin, 0.1-0.2 part of a wetter, 0.36-0.47 part of a dispersant, 0.3-0.9 part of a defoamer, 0.02-0.1 part of a preservative, 0.02-0.1 part of a mildew preventive, 0.52-1.12 parts of a thickener, 1.2-2.4 parts of a film-forming aid and 0.03-0.18 part of a pH value regulator. The coating is provided with a plurality of photo-thermal reflection layers and heat-insulated barriers, has a good heat-insulated effect capable of reaching more than 98%, and is excellent in mechanical performance, large in adhesive force, good in weather resistance, water resistance, stain resistance, scrub resistance and the like, safe, environment-friendly and wide in application range.
Owner:TAICANG PAIOU TECH CONSULTING SERVICE

Loop antenna system with gaps for radiation

The invention provides a Loop antenna system with gaps for radiation. The Loop antenna system comprises a metal frame. The two gaps are formed in the bottom edge of the metal frame. The interior of the metal frame is divided into a clearance zone and a main land portion. The clearance zone is located on the side, close to the gaps, in the metal frame and the main land portion is connected with the metal frame. The two ends of the portion, between the two gaps, of the metal frame are connected with a feed source and the main land portion respectively through antenna portions, so that a Loop antenna structural mode is formed and the antenna portions are located in the clearance zone. According to the Loop antenna system, the metal frame of a mobile terminal serves as a part of an antenna to be used in the radiation process. On one hand, radiation is conducted by the two gaps and the Loop antenna together so that the high-radiation antenna system can be formed and have the advantage that the bandwidth is increased; on the other hand, due to the facts that the two gaps are formed in the bottom edge and the Loop antenna is low in sensitivity, the Loop antenna system has the advantages of being low in sensitivity and high in signal strength.
Owner:XIAOMI INC +1

Composite aerogel thermal insulation coating and preparation method thereof

The invention relates to composite aerogel thermal insulation coating and a preparation method thereof. The coating has good heat insulation performance, high reflection performance and high radiation performance, contains aerogel, and belongs to the technical field of heat insulation of building materials. The preparation method mainly comprises the steps of preparing water-based aerogel slurry, selecting filler with a high reflection / high radiation function, and selecting other filler with an auxiliary heat insulation function. The filler with the high reflection / high radiation function comprises one or more of high white aluminum silicate, titanium dioxide and zinc oxide; the filler with the auxiliary heat insulation function comprises one or more of glass microbeads, ceramic microbeads, expanded perlite and expanded vermiculite. Water glass and silicone acrylic emulsion (or pure acrylic emulsion) are used as film forming matters at the same time. In the step of preparing the water-based aerogel slurry, a silane coupling agent is taken as a dispersing agent.
Owner:BEIJING SATELLITE MFG FACTORY

Antenna control system and method of phased array radar

The invention discloses an antenna control system and method of a phased array radar, and belongs to the technical fields of radio orientation, radio navigation, radio wave range finding or velocity measurement, positioning or existence detection via reflection or re-radiation of radio waves, and similar devices with other waves. The system comprises an antenna array module, an array plane selector switch module, a transmitting-receiving amplifier and filter module, a phase shifter and power divider module, a GPS / BD positioning module, an attitude sensor module, a control and power supply module and a wave beam oriented automatic control module. The system and method can satisfy the requirements of minimization, low power consumption, high radiation efficiency and high isolation degree. Compared with a traditional phased array configuration system, the number of RF transmitting-receiving channels is reduced to 1 / 5, the power consumption is reduced to 1 / 5 correspondingly, a switch linephase shifter is used, the phase delay within the work bandwidth satisfies the time delay characteristic of a signal space, and different frequency points are directed accurately; all machinery related equipment is omitted; and the total power consumption is reduced greatly.
Owner:西安欣创电子技术有限公司

Multi-ring-arranged double-integrated circuit (IC) chip packaging piece and production method thereof

The invention discloses a multi-ring-arranged double-integrated circuit (IC) chip packaging piece and a production method thereof. The multi-ring-arranged double-IC chip packaging piece comprises a multi-ring quad flat no (QFN) lead frame with a carrier, an internal pin, IC chips and a plastic package body. The production method comprises the following steps of: thinning; scribing; adding the chips primarily; performing pressure welding; inversely adding the chips secondarily; filling the bottom and solidifying; performing plastic packaging and post solidifying; printing; separating pins; electroplating; separating products; testing the products; packing; and warehousing. Compared with a single-row lead frame with the same area as the multi-ring QFN lead frame, the multi-ring QFN lead frame increases the pins by over 40 percent, so that the requirements of high density and multiple input / output (I / O) packages are met; the chips are inversely added, so that the packaging piece has a small number of short welding lines, a short heat conduction distance and high radiation capacity; through the inverse addition of the chips, the capacitance and the inductance between protruding points and the pins are far lower than those of the welding lines between a chip welding disc and the pins, so that the influence on high frequency application is reduced; and the thickness of a QFN can be reduced to be below 0.5mm, so that the intersection and the open circuit of the welding lines are avoided and testing qualified rate and testing reliability are improved.
Owner:TIANSHUI HUATIAN TECH +1

Method of reducing a wave front aberration, and computer program product

A method of reducing a wave front aberration is provided for a lithographic process whereby the reducing is based on the selected pattern to be printed and the selected illumination mode used for exposure. Wave front aberrations of a projection system of a lithographic apparatus are measured and reduced by calculating adjustments of optical elements of the projection system and applying the calculated adjustments to the projection system. The calculation of adjustments is based on information on a spatial distribution of radiant intensity in a pupil of the projection system as present during exposing the radiation sensitive layer, and is limited to aberrations in projection lens pupil areas of relative high radiant flux.
Owner:ASML NETHERLANDS BV

Top cycle power generation with high radiant and emissivity exhaust

The present invention generally relates to power generation methods and secondary processes requiring high radiant and emissivity homogeneous combustion to maximize production output. In one embodiment, the present invention relates to a top cycle power generator with combustion exhaust modified to have radiant flux in excess of 500 kW per square meter and emissivity greater than 0.90, and supercritical CO2 power generating cycle to maximize exergy efficiency.
Owner:GURIN MICHAEL

Iris recognition optical imaging module for mobile terminal security identity authentication and using method thereof

The invention discloses an iris recognition optical imaging module for mobile terminal security identity authentication. The module comprises near-infrared LED lighting sources (1L and 1R), an optical imaging lens (5) with a fixed focus, a back-focus near-infrared optical filter (6), an imaging sensor (7) and a security chip (9), wherein the timing sequence of a short period T of the highest radiation intensity I generated by the near-infrared LED lighting sources (1L and 1R) is equal to the timing sequence of the period of global trigger exposure of the frame pixel of the imaging sensor (7), and the half-peak radiation or divergence angle FWHM of the near-infrared LED lighting sources (1L and 1R) is larger than or equal to the imaging field angle FOV of the optical imaging lens (5). The invention further provides a method of using the iris recognition optical imaging module which is used for a mobile terminal for security identity authentication.
Owner:SUZHOU SIYUAN KEAN INFORMATION TECH
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