Patent application number | Description | Published |
20090213021 | Isolation Antenna For Repeater - Provided is an isolation antenna for a repeater which can acquire high isolation by using loop and dipole antennas, which are positioned in opposite directions to each other based on a shielding means, in a unidirectional repeater generally used in broadcasting or wireless communications even though transmitting antenna/receiving antennas having a co-channel are set up closely to each other. The transmitting/receiving isolation antenna includes: a shielding means including an electric conductor; a first antenna of a dipole antenna type in one side of the shielding means; and a second antenna of a loop antenna type in an opposite side of the shielding means where the first antenna is positioned. | 08-27-2009 |
20090267849 | ULTRA ISOLATION ANTENNA - Provided is a transmitting/receiving isolation antenna that can perform wireless bi-directional communication in the co-channel, co-polarization and co-time by acquiring high isolation from transmitting and receiving antennas having co-time, co-channel and co-polarization and set up adjacently. The isolation antenna includes a first antenna; second and third antennas symmetrically positioned in the same distance from the first antenna; a shielding unit symmetrically positioned between the first and second antennas, and between the first and third antennas; and a signal removing unit for removing a signal transmitted from the first antenna to the second and third antennas. | 10-29-2009 |
20100134370 | PROBE AND ANTENNA USING WAVEGUIDE - A probe and an antenna reduces the multiple reflection of electromagnetic waves. The probe includes: a waveguide; and a resonance unit entirely or partially disposed in the inside of the waveguide and comprising a conductor. | 06-03-2010 |
20100238086 | DOUBLE-RIDGED HORN ANTENNA HAVING HIGHER-ORDER MODE SUPPRESSOR - A double-ridged horn antenna having a higher-order mode suppressor includes a pair of upper and lower ridges arranged opposite to each other, each of the upper and lower ridges having an inner surface to guide electromagnetic waves and an outer surface arranged opposite to the inner surface; upper and lower flares fixedly attached to respective outer surfaces of the upper and lower ridges; left and right flares coupled to the upper and lower flares to form a rectangular cone structure; and metal conductors symmetrically positioned between the upper and lower ridges and the left and right flares. | 09-23-2010 |
20100270967 | APPARATUS FOR HARVESTING ENERGY FROM MICROWAVE - Provided is an apparatus for harvesting energy from a microwave. An apparatus for harvesting energy from a microwave in an electricity storage system of a building, includes: a plurality of rectennas arranged with a predetermined length according to characteristic of microwave to be absorbed, and configured to collect microwave in the atmosphere and convert the collected microwave into electric energy; a current converter configured to convert the electric energy outputted from the rectennas into a storable current; and a charging tank configured to store the current outputted from the current converter, wherein the arranged rectennas are attached to an outer wall of the building, and the rectennas attached to the top of the building are printed in a transparent conductor on the surface of a solar cell. | 10-28-2010 |
20120019075 | WIRELESS ENERGY TRANSFER APPARATUS AND METHOD FOR MANUFACTURING THE SAME - A wireless power transfer apparatus includes: a transmitting coil into which a current having a predetermined frequency is introduced; a receiving coil configured to supply a current induced by electromagnetic induction to a load; and a transmission-side resonant coil and a reception-side resonant coil positioned between the transmitting coil and the receiving coil, configured to provide the current flowing in the transmitting coil to the receiving coil through electromagnetic induction, and spaced a predetermined distance from each other. Each of the resonant coils has a spiral structure. | 01-26-2012 |
20120098349 | WIRELESS POWER TRANSFER DEVICE - Provided is a wireless power transfer device. The wireless power transfer device includes: a base substrate including a base coil; transmission substrates spaced from the base substrate and including transmission coils; and a contact plug penetrating the base substrate and the transmission substrates to connect one ends of the transmission coils; wherein the transmission coils have the greater turn number than the base coil and transmitting/receiving a power signal through a magnetic resonance method. | 04-26-2012 |
20120133214 | DIRECT FEEDING APPARATUS FOR IMPEDANCE MATCHING OF WIRELESS POWER TRANSMISSION DEVICE, AND TRANSMITTER AND RECEIVER USING THE SAME - A direct feeding apparatus for impedance matching of a wireless power transmission device includes a helical type resonator, and a feeding unit configured to directly feed power to a region having a relatively small current value as compared to a center of a conductive line of the resonator. | 05-31-2012 |
20120157021 | APPARATUS AND METHOD FOR WIRELESSLY TRANSMITTING AND RECEIVING ENERGY AND DATA - Disclosed is an apparatus for wirelessly transmitting and receiving energy and data including: a signal generator generating a first frequency signal for power transmission; a first matching circuit matching input/output impedance upon receiving the first frequency signal generated by the signal generator; an oscillator outputting a second frequency signal, a carrier frequency, by using the first frequency signal, generated by the signal generator, as a reference frequency; a mixer modulating a data signal output from a communication module by using the second frequency signal; a second matching circuit matching input/output impedance upon receiving a modulated signal by using the second frequency signal; a resonator resonating an output signal from the first matching circuit to a reception side apparatus; and a radiator radiating an output signal from the second matching circuit to the reception side apparatus. | 06-21-2012 |
20120161540 | APPARATUS FOR TRANSMITTING/RECEIVING ENERGY IN ENERGY SYSTEM - Disclosed is an energy transmitting apparatus in an energy system, including: a transmit feeding cable configured to be applied with AC power; a transmit inductor in which AC current for an AP power supply flows; a transmit metal electrode configured to transmit the AC power to a receive metal electrode by the AC current flowing the transmit inductor; and a transmit grounding bar configured to control at least one of a position, a length, and a diameter thereof to control a resonance frequency generated by the transmit inductor. | 06-28-2012 |
20120161542 | METHOD AND SYSTEM FOR REDUCING RADIATION FIELD IN WIRELESS TRANSMISSION SYSTEM - A system for reducing a radiation field in a wireless power transmission system includes a signal generation unit, a power amplification unit, a signal detection unit, a standing wave ratio (SWR) calculation unit and a control unit. The signal generation unit receives power and generates a signal for wireless power transmission. The power amplification unit amplifies the wireless signal generated by the signal generation unit. The signal detection unit detects a radiation signal generated by the magnetic resonator with respect to output power of the power amplification unit. The SWR calculation unit calculates an SWR using the detected radiation signal. The control unit selects a frequency having a lowest SWR based on the SWR calculated by the SWR calculation unit, and controls the signal generation unit to generate the signal for the wireless power transmission using the selected frequency. | 06-28-2012 |
20130221757 | WIRELESS POWER TRANSMISSION APPARATUS - A wireless power transmission apparatus includes: a transmission resonator installed in one side wall within a specific space and configured to comprise a transmission feeding loop for transmitting impedance matching and power and receive and transmit the impedance matching and power using the transmission feeding loop. Further, the wireless power transmission apparatus includes a relay resonator installed in another side wall within the specific space and configured to have a resonant frequency identical with that of the transmission resonator and store energy in the specific space by generating mutual resonance through a resonance characteristic with the transmission resonator; and one or more reception resonators installed within the specific space and configured to have a resonant frequency identical with that of the transmission resonator and receive the energy stored in the specific space. | 08-29-2013 |
20130229064 | APPARATUS FOR HARVESTING LEAKAGE ENERGY - Disclosed is an apparatus for harvesting leakage energy. The apparatus for harvesting leakage energy includes: an energy harvesting unit configured to harvest energy leaked while energy radiated from a transmitting unit of an energy transmitting apparatus is transmitted to a receiving unit of an energy receiving apparatus; and a harvesting circuit module configured to supply energy harvested by the energy harvesting unit to a load. In accordance with the embodiment of the present invention, energy efficiency of overall system can be increased by harvesting the leakage energy without affecting performance of a wireless power transmission system. | 09-05-2013 |
20130257174 | APPARATUS AND METHOD FOR WIRELESSLY TRANSMITTING AND RECEIVING ENERGY AND DATA - A method for wirelessly receiving energy and data, including: a resonation operation of resonating a first frequency power signal transmitted from a transmission apparatus; a reception operation of receiving a second frequency data signal transmitted from the transmission apparatus; a first matching operation of matching input/output impedance upon receiving the first frequency power signal; a rectification operation of rectifying impedance-matched power signal from the first matching operation into a DC current; a second matching operation of matching input/output impedance upon receiving the second frequency data signal; an oscillation operation of outputting a second frequency signal by using the first frequency signal output from the resonation operation, as a reference frequency; and a frequency mixing operation of mixing the impedance-matched data signal from the second matching operation with the signal output from the oscillation operation to restore a baseband data signal. | 10-03-2013 |
20130285462 | APPARATUS AND METHOD FOR TRANSMITTING WIRELESS ENERGY IN ENERGY TRANSMISSION SYSTEM - An apparatus for transmitting wireless energy in an energy transmission system includes a transmission resonator block configured to have a plurality of transmission resonators arranged therein, a transmission signal generation block configured to generate an energy signal, a switch block connected to the plurality of transmission resonators and configured to switch the energy signal to the plurality of transmission resonators in response to a switching control signal, and a control block configured to generate the switching control signal for switching the energy signal to a transmission resonator including a transmission region where a receiver is placed when detecting the receiver placed in the transmission regions of the plurality of transmission resonators. | 10-31-2013 |
20130320760 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING WIRELESS ENERGY IN ENERGY TRANSMISSION SYSTEM - Disclosed are an apparatus and a method for transmitting/receiving wireless energy in an energy transmission system. The apparatus includes: a transmitting controller configured to generate a wireless energy signal; a transmitting resonance body port configured to transmit the wireless energy signal; and a transmitting resonance body configured to transmit the wireless energy signal transmitted through the transmitting resonance body port to receiving apparatuses, wherein the transmitting controller transmits impedance control signals for controlling impedance of each of the receiving resonance body ports of the plurality of receiving apparatuses. | 12-05-2013 |
20140125433 | RESONANTOR STRUCTURE FOR WIRELESS POWER TRANSFER SYSTEM - A resonator structure for a wireless power transfer system Includes resonators, which are to transfer wireless power, and a dielectric substance, which includes at least one exposure region formed on the dielectric substance to fix the resonators in a covered shape and to selectively expose parts of the resonators. | 05-08-2014 |
20140152247 | BATTERY CHARGING METHOD AND SYSTEM USING WIRELESS POWER TRANSMISSION - Provided is a battery charging method using wireless power transmission, the method including: receiving a first message associated with a battery charge start from a reception apparatus; discovering an optimal frequency band for a transmit power signal to be transmitted to the reception apparatus based on the first message; receiving, from the reception apparatus, a second message that includes an extra power value and a charge power value, and is associated with a charge state of the reception apparatus; and adaptively controlling transmit power so that the extra power value is maintained to be constant in proportion to a relationship between the charge power value and a first parameter, based on the second message. | 06-05-2014 |
20140172658 | VOLUME-RATE FOOD-WASTE DISPOSAL APPARATUS AND CHARGING APPARATUS FOR USE WITH THE SAME - A volume-rate food-waste disposal apparatus recognizes a user who discharges food-waste into the food-waste disposal apparatus to produce source information and weights the food-waste to produce weight information. The food-waste disposal apparatus receives an electrical power in a wireless manner and dries the food-waste using magnetic waves. The food-waste disposal apparatus transmits the source information and the source information to a charging server so that an on-line food-waste disposal fee per source is billed on a basis of a prefixed food-waste disposal fee per weight. | 06-19-2014 |
20140203655 | APPARATUS FOR TRANSMITTING MAGNETIC RESONANCE WIRELESS POWER USING HIGHER ORDER MODE RESONANCE, RECEIVING TERMINAL, AND METHOD FOR TRANSMITTING AND RECEIVING WIRELESS POWER USING THE SAME - A method includes matching a basic mode frequency signal and a higher order mode frequency signal to a multi-band frequency signal with respect to a signal in the form of the square wave, transferring the matched basic mode frequency signal and higher order mode frequency signal simultaneously to a multi-resonance reception resonator, converting output impedance of the basic mode frequency and the higher order mode frequency which are received through the reception resonator into a conjugate value of input impedance of the basic mode frequency and the higher order mode frequency of a receiver, and converting the converted multi-band frequency signal into an electric power that is required in a load and transferring the electric power to the load. | 07-24-2014 |
20140361629 | ANTENNA FOR HARVESTING RF ENERGY - An antenna for harvesting RF energy includes a radiator; and a ground plane onto which the radiator is supported. Further, the antenna includes a vertical ground plane that is formed on the ground plane in a direction parallel to the radiator at a location spaced by a predetermined distance from the radiator. | 12-11-2014 |
Patent application number | Description | Published |
20090160706 | SYSTEM AND METHOD FOR MEASURING ANTENNA RADIATION PATTERN IN FRESNEL REGION - There is a provided a system for measuring an antenna radiation pattern in a Fresnel region, including: a fixed antenna and a movable antenna located in the Fresnel region to acquire a far-field radiation pattern; a moving unit for moving upward or downward to adjust a measuring angle of the movable antenna; a rotation unit to rotate a rotation shaft horizontally; a vector network analyzing unit for outputting an radio frequency (RF) signal to one of the fixed antenna and the movable antenna as a transmission antenna, receiving the RF signal received through the other one of the fixed antenna and the movable antenna as a receiving antenna, and detecting a complex value; a control and communication unit for controlling the vector network analyzing unit and a control unit, and performing a data communication; and the control unit for providing a vertical/horizontal rotation force to the moving unit and the rotation unit under a control of the control and communication unit. | 06-25-2009 |
20090322633 | SMALL MONOPOLE ANTENNA HAVING LOOP ELEMENT INCLUDED FEEDER - Provided is a small monopole antenna having a loop feeder. The small monopole antenna having a loop feeder includes: a loop element forming a loop along a predetermined plane and having a loop feeder at the center thereof; a non-feeding type monopole antenna element including one end connected to a wire of the loop element and other end connected to a ground unit by being bended at the center of the loop element; a ground unit for grounding other end of the non-feeding type monopole antenna; and a first connecting unit for connecting the non-feeding type monopole antenna to an external device for feeding the loop feeder of the loop element through the non-feeding type monopole antenna. | 12-31-2009 |
20090322634 | LOOP ANTENNA - Provided is a loop antenna. The loop antenna includes a first antenna element embodied as a coaxial cable, a second antenna element embodied as a line and connected to one end of the first antenna element in series, a third antenna eLement embodied as a line, having one end connected to a ground plane and the other end connected to the other end of the first antenna element in series, and a power feeding cable for supplying power to the second antenna element. | 12-31-2009 |
20100073246 | SYSTEM AND METHOD FOR MEASURING ANTENNA RADIATION PATTERN IN FRESNEL REGION BASED ON PHI-VARIATION METHOD - Provided is a system and method for measuring an antenna radiation pattern in a Fresnel region based on a phi-variation method. The system includes a rotator for changing angles of a reference antenna and a target antenna; a vector network analyzer for obtaining radiation pattern data in accordance with transmission/reception radio frequency (RF) signals between the reference antenna and the target antenna; a measurement unit for calculating a far-field radiation pattern based on the radiation pattern data received from the vector network analyzer; and a controller for controlling the rotator according to a measurement angle transmitted from the measurement unit. | 03-25-2010 |
20100109957 | APPARATUS FOR MEASURING ANTENNA RADIATION PERFORMANCE AND METHOD OF DESIGNING THE SAME - Provided are an antenna radiation performance measuring apparatus and a method for designing the same. The apparatus includes a chamber configured to include a transmit antenna radiating electromagnetic wave, a receive antenna receiving the electromagnetic wave, and an electromagnetic wave absorber absorbing the electromagnetic wave, and a reflector disposed on one side of the chamber between the transmit antenna and the receive antenna, inclined at a predetermined angle, and configured to reflect an electromagnetic wave radiated in a direction to the one side from the transmit antenna. | 05-06-2010 |