179 results about "Radio frequency radiation" patented technology

A multi-function, field-deployable resource harnessing apparatus 600 having, in its embodiments, an inflatable reflector apparatus 610 comprising a least one manufactured parabolic mirror made from a pressure-deformable reflective covering of an inflatable ring for focusing electromagnetic energy from radio frequency radiation (RF) through the ultraviolet (UV) radiation including solar energy for (1) heating and cooking, (2) electrical power generation, (3) enhancing the transmission and reception of radio signals, (4) enhancing vision in low-light environments, and/or (5) projection of optical signals or images. The device also has non-electromagnetic uses, such as the collection and storage of water, harnessing of energy from a fluid stream, and/or harnessing wave energy. A first main embodiment of the inflatable reflector apparatus 610 generally utilizes two pressure-deformable membranes, at least one of which is reflective. A second main embodiment utilizes a reflective membrane and a transparent membrane. In addition to the reflector apparatus 610, the modular apparatus 600 typically further includes modular assemblies to increase versatility, facilitate use, and/or enhance safety such as, for example, a modular support and orienting assembly 612, a separate support ring 614, a safety shield or cage 616, a focal point support assembly 618, a safety cover 620, a safety net or mesh 622, and a stabilizing assembly 624. Portability is enhanced by complete collapsing of the inflatable device.

A method is provided for at least one of detecting and tracking an object within a wide-area. The method including: deploying three or more sensors within the wide-area, each of the sensors having one or more polarized radio frequency waveguides; transmitting polarized radio frequency radiation from at least one source; detecting a reflection of the transmitted polarized radio frequency radiation; and calculating one of a detection or position of an object within the wide-area based on the detected reflection. At least one of the three or more sensors and at least one source can be a mobile platform, which can be manned or unmanned. The three or more sensors can be deployed manually or remotely, such as from a projectile.

A radio-frequency radiation source comprises electrodes containing opposing electrodeless parts formed on both sides of a dielectric plate in which the electrodeless parts are made to function as a dielectric resonator, a slit formed in the electrodeless part, and a switching element mounted over the slit. Further, a transmission line coupled to the dielectric resonator is provided. As constructed this way, the resonance frequency of the resonator is switched by turn-on and turn-off of the switching element. When the resonator resonates with the frequency of a signal propagated through the transmission line, the energy of the electromagnetic field is radiated to the outside through a slot.

An modular, inflatable, multifunction, multipurpose, parabolic reflector apparatus having a plurality of manufactured parabolic mirrors made from a pressure-deformable reflective covering of an inflatable ring for focusing electromagnetic energy from radio frequency radiation (RF) through the ultraviolet radiation (UV) and solar energy for (1) heating and cooking, for (2) electrical power generation, for (3) enhancing the transmission and reception of radio signals, for (4) enhancing vision in low-light environments, and for (5) projection of optical signals or images. The device also has non-electromagnetic uses, such as the collection of water. A first main embodiment utilizes two reflective membranes. A second main embodiment utilizes a reflective membrane and a transparent membrane. Portability is enhanced by complete collapsing of the inflatable device.

There is disclosed a multimode seeker including an imaging infrared seeker and a radio frequency seeker. The imaging infrared seeker and the radio frequency seeker may share an optical system adapted to form an infrared image of an outside scene on a focal plane array image detector and to collimate radio frequency radiation transmitted from a radio frequency transceiver and focus millimeter ware radiation received from the outside scene onto the radio frequency transceiver. The shared optical system may include a plurality of baffles to block sunlight from reaching the focal plane array image detector, each baffle comprising a material that is opaque to infrared radiation and transparent to radio frequency radiation.

Methods, systems and devices are presented that provide improved medical diagnostic and intervention procedures such as magnetic resonance imaging, cardiac imaging, cardiac nuclear scintigraphy, computed tomography, echocardiography, imaging to direct laser ablation, imaging to direct radio frequency radiation ablation, imaging to direct gamma knife radiation therapy, and imaging to direct radiation therapy by respiratory gating. In a preferred embodiment, one or more balloon pressure probes within a catheter are placed into the esophagus and detect pressure within the esophagus to infer respiratory air-flow. Other probes such as those based on fiber optics and other useful materials are described. Many of these devices interact poorly or not at all with magnetic and electromagnetic fields, and are particularly useful for use in respiratory gating of MRI.

An inflatable, multifunction, multipurpose, parabolic reflector apparatus having a plurality of manufactured parabolic mirrors made from a pressure-deformable reflective covering of an inflatable ring for focusing electromagnetic energy from radio frequency radiation (RF) through the ultraviolet radiation (UV) and solar energy for (1) heating and cooking, for (2) electrical power generation, for (3) enhancing the transmission and reception of radio signals, for (4) enhancing vision in low-light environments, and for (5) projection of optical signals or images. The device also has non-electromagnetic uses, such as the collection of water. A first main embodiment utilizes two membranes, where at least one is reflective to electromagnetic radiation. A second main embodiment utilizes a reflective membrane and a transparent membrane. Portability is enhanced by complete collapsing of the inflatable device.

Data pertaining to environmental information is acquired using sensors on a multiplicity of networked pervasive devices, and analyzed to determine occurrence of at least one environmental event. Such data can be obtained, for example, from an inventive wireless communications device including an antenna, transmit circuitry coupled to the antenna for transmission of radio frequency radiation therefrom, at least one environmental sensor configured to obtain environmental data, and a communications module coupled to the at least one environmental sensor and configured to cause transmission of a representation of the data via the antenna and the transmit circuitry.

Apparatus and method are disclosed for plasma synthesis of graphitic products including graphene. A plasma nozzle is coupled to a reaction chamber. A process gas is supplied to the plasma nozzle, the process gas comprising a carbon-containing species. Radio frequency radiation is supplied to the process gas within the plasma nozzle, so as to produce a plasma within the nozzle in use, and thereby cause cracking of the carbon-containing species. The plasma nozzle is arranged such that an afterglow of the plasma extends into the reaction chamber. The cracked carbon-containing species also passes into the reaction chamber, and the cracked carbon-containing species recombines within the afterglow, so as to form the graphitic products including graphene.

A radio frequency radiation shield unit that is removably mounted on the antenna of a wireless telephone. It has an upright oriented front wall member that is detachably connected to an upright oriented rear wall member. These wall members are fabricated of a plastic material having carbon fibers therein for absorbing and dispersing radiation. A chamber is formed between the front wall member and rear wall member and one or more membranes are positioned therein and these membranes are made of carbon fiber material that has been cut into strips and tightly woven together. A tubular collar is formed on the rear surface of the lower portion of the rear wall member.

The present invention discloses a mobile terminal with the function of detection and radio frequency radiation detector. The mobile terminal comprises a baseband processor and a radio frequency radiation detector which is used for detecting the radio frequency radiation signal of the surroundings, and transferring the radio frequency radiation signal into the digital signal, delivering to the baseband processor to deal; the baseband processor also includes a radio frequency radiation detecting control module used for starting the radio frequency radiation detector when choosing to start, and controlling the radio frequency radiation detector, when the radio frequency radiation detector in the mobile terminal is in the radio frequency sending state, closing the radio frequency radiation detector. The radio frequency radiation detector comprises a radio frequency radiation receiving antenna, an antenna resonance matching circuit unit, a wide band diode off-set and transrectification circuit unit, a direct voltage operation enlarging circuit unit and an AD transducer. The detection of the present invention to the radio frequency radiation is more convenient and quicker, the realized function is more varied, flexible and complex.

The invention discloses a detecting and imaging method and a detecting and imaging device based on broadband magnetic wave reflection path parameter identification. According to the method, broadband magnetic wave is taken as a carrier, a path through which magnetic wave reflection passes is used as a reflection channel, and electromagnetic parameter characteristics of different materials is utilized, so that the internal distribution characteristics of a detected object can be identified through inversion and fusion on transfer functions and various variable forms and lossless detection and imaging can be realized. The device comprises a detection front end for detecting generation of signals, microwave transmission and reflection magnetic wave receiving, and a signal processing back end for controlling the setting of parameters, processing of receiving signals, inversion and fusion of a magnetic wave reflection path and imaging display, wherein the detection front end and the signal processing back end are connected in a wire/wireless manner, and by using software processing, the detection accuracy is improved, and the miniaturization of the equipment is conveniently realized. According to the embodiment of the invention, coupling agents, strong magnetic fields, radioactive sources and radio frequency radiation are not needed; the method and the device have the advantages of non-contact form, high accuracy, low cost and the like, and have wide application prospect in the fields of underground pipeline detection, road and bridge detection, industry and agriculture, medicines and the like.

The invention provides a method for positioning underground people by the visible light communication technology. The method is characterized in that the position of people is determined according to different light intensity at different positions between adjacent LED lamps underground and number information of the LED lamps for lighting a laneway. The system for the method is divided into two parts according to the design, namely, a lighting and control system and a people positioning module, wherein the lighting and control system can be used for displaying the position information of people underground in real time and controlling miner lamps; the miner lamps send each number information in a form of a light signal, and PIN photoelectric tubes positioned around the miner lamps are utilized to receive the light information from moving miner lamps; the people positioning module is used for recording and handling with the position information of the people underground and sending out the position information of the people underground through the moving miner lamps carried by the people underground. With the adoption of the method, the people can be positioned, and requirement for lighting underground is also met; in addition, the advantages of being free of radio-frequency radiation and high in safety are brought.

The invention provides a transformer station intelligent electronic device multi-source anti-interference characteristic testing method. The testing method comprises a mixed power frequency magnetic field testing method and a mixed radio frequency radiation anti-interference degree testing method. The mixed power frequency magnetic testing method is characterized in that during the power frequency magnetic field test, the surge test and the static test can be carried out; during the power frequency magnetic field test, the electrical fast transient burst test and the static test can be carried out; during the power frequency magnetic field test, the voltage dip test and the static test can be carried out. The mixed radio frequency radiation anti-interference degree testing method is characterized in that during the radio frequency anti-interference degree test, the surge test and the static test can be carried out; during the radio frequency radiation anti-interference degree test, the electrical fast transient burst test and the static test can be carried out; during the radio frequency anti-interference degree test, the voltage dip test and the static test can be carried out. The method provided by the invention is capable of simulating a plurality of interference ways, which are applied to the intelligent electronic devices at the same time, and then the anti-interference degree can be tested, and the acquired testing result can be used to reflect the actual condition, and therefore the credibility and the authority of the anti-interference degree test can be improved greatly.

The temperature of a substrate to be processed on a table can be controlled to be at a desired temperature by using a heating method that simplifies the structure inside the table and requires no special heating arrangement. An electrostatic chuck provided on an upper surface of a susceptor includes an electrode portion formed by a conductive plate or film and a pair of dielectric or insulation sheets sandwiching the electrode portion therebetween. A direct-current voltage from a direct-current power supply is applied to the electrode portion via a feed line for electrostatic absorption. A radio-frequency power supply causes the electrode portion of the electrostatic chuck to heat by resistance heating. This affects the temperature of the semiconductor wafer on the susceptor in the heating method, thereby providing control over its temperature. One output terminal of the radio-frequency power supply is electrically connected to the susceptor via another feed line, while the other output terminal is connected to the ground potential. The radio-frequency power supply outputs radio-frequency radiation of 10 kHz, for example, with a power that is preferably variable and controllable.

A method of applying a coating to a glass container, which includes the steps of coating an exterior surface of the glass container with a thermally-curable coating material containing electrically-conductive nanoparticles, and exposing the coated container to radio frequency radiation such that absorption of the radio frequency radiation by the nanoparticles internally heats and cures the thermally-curable coating material on the exterior surface of the glass container to result in a cured coating on the glass container.

The invention relates the microwave radio-frequency radiation cross-linking biodegradation material, comprising starch, cellulose, A, aminocaprolactam or polyatomic alcohol, B, coupling agent, C, nucleation agent, D, undecylenic acid, calcium carbonate, natrii chloridum, and urea. The method comprises the following steps: mixing the raw material, cross linking with microwave radio-frequency device, foaming, forming, and getting the product. The invention solves the problems of no degradation, complex procedure, high cost and hard technology. The product has the advantages of good draftability, suppleness and obstructing property. The invention has the advantages of wide application area, completely degradation and non pollution. The invention also has the advantages of simple technology, easy operation and low cost.