Patent application number | Description | Published |
20100045532 | ANTENNA USING ELECTRICALLY CONDUCTIVE INK AND PRODUCTION METHOD THEREOF - Disclosed is an antenna having an antenna radiator formed by printing electrically conductive ink on a substrate. An antenna radiator according to an embodiment of the present invention is formed to the same thickness as a skin depth with respect to an operation frequency of the antenna. Therefore, an antenna can be fabricated using a small amount of electrically conductive ink while not reducing the gain of the antenna. Further, an antenna radiator according to another embodiment of the present invention is formed to the same thickness as a skin depth with respect to a predetermined frequency at a corresponding hot spot with respect to the frequency. Accordingly, an amount of electrically conductive ink used can be further reduced while maintaining the gain of the antenna. | 02-25-2010 |
20100122694 | Oil Separation Apparatus For Blow-By Gas - An oil separation apparatus may include an intake housing provided with a gas inlet for the blow-by gas to be sucked therein, a plurality of cyclone which is formed as a cone, is disposed around the intake housing, is communicated with intake housing through an intake passage and separates oil from the blow-by gas, wherein a gas exit is formed to the upper side of the cyclone for discharging the blow-by gas and an oil outlet is formed to the lower side of the cyclone for discharging the separated oil, an exhaust housing cylinder which is provided with an gas outlet, is communicated with the gas exit and discharges the blow-by gas through the gas outlet and a control unit which is disposed within the intake and exhaust housing and selectively opens the intake passages according to intake pressure of the engine. | 05-20-2010 |
20120018663 | FERRITE FOR HIGH-FREQUENCY APPLICATIONS AND MANUFACTURING METHOD THEREOF - Disclosed are a ferrite for high-frequency applications and a manufacturing method thereof. The ferrite comprises the elements Mg, Cu, Fe, and O, in which the elements have a composition ratio represented by the formula Mg | 01-26-2012 |
20120140437 | LIGHTING MODULE AND LIGHTING DEVICE - A lighting module may be provided that includes: a light emitter; a clad metal substrate which is disposed under the light emitter; an insulating structure which insulates the light emitter from the clad metal substrate; an optical structure which is disposed on the light emitter; and a case which is disposed on the optical structure and is coupled to the clad metal substrate, wherein the light emitter includes a semiconductor based light emitting device. | 06-07-2012 |
20130147539 | DOWN-CONVERTER, UP-CONVERTER, RECEIVER AND TRANSMITTER APPLYING THE SAME - A down-frequency conversion circuit and up-frequency conversion circuit, and a receiver and transmitter applying the same are provided. The down-frequency conversion circuit includes a harmonic mixer and general mixer, and thus becomes able to convert frequency using one LO (Local Oscillator) frequency, thereby reducing burden on generating LO frequency. | 06-13-2013 |
20130154760 | BONDING WIRE IMPEDANCE MATCHING CIRCUIT - An impedance matching circuit is provided. The present impedance matching circuit is able to match impedance using a transformer which is arranged inside a dielectric substrate and arranged to overlap with a bonding pad area and an end of a transmission line, thereby enabling transmitting signals at a desired frequency with a minimum insertion loss without using a very thin transmission line which is several to dozens of μm wide or specially designed antennas in order to compensate for inductance. Thus, the present impedance matching circuit may be applied to various millimeter bands. | 06-20-2013 |
20140139298 | RF SWITCH WITH TRANSFORMER AND SWITCHING METHOD THEREOF - A radio frequency (RF) switch with a transformer and a switching method thereof are provided. The RF switch includes a transmitting end transformer having a primary side connected to a transmitting end and a secondary side connected to an antenna; and a receiving end transformer having a primary side connected to the antenna and a secondary side connected to a receiving end. In a transmission mode, the transmitting end transformer is tuned on, and, in a reception mode, the receiving end transformer is turned on. Accordingly, since switching is performed based on transformers rather than transistors connected in series, the RS switch, which can achieve high linearity and low insertion loss as well as high isolation, can be implemented. | 05-22-2014 |
20140312933 | LOW NOISE COMPARATOR FOR HIGH RESOLUTION ADC - A low noise comparator for a high resolution ADC is provided. The comparator includes: an inputter configured to receive a signal and amplify the signal; and an outputter configured to output a result of comparing the signal output from the inputter, wherein an inductor is connected to an input terminal of an input element of at least one of the inputter and the outputter. Accordingly, the comparator can satisfy the gain value and the noise performance at the same time by using the inductor which has no voltage headroom problem. | 10-23-2014 |
20140370262 | THREE-DIMENSIONAL GRAPHENE STRUCTURE, AND PREPARATION METHOD THEREOF - A method of preparing a three-dimensional graphene structure, and a graphene structure prepared by the method are provided. The method includes preparing a dispersion in which a graphite oxide is dispersed, and preparing a gel by controlling a degree of reduction of the dispersion. The method can be useful in providing a three-dimensional graphene structure having a specific surface area, a pore size or a volume per unit mass, which is suitable for the field of applications thereof. | 12-18-2014 |
20150029060 | WIRELESS COMMUNICATION DEVICE - A wireless communication device having a stable capacity of an antenna even if a terminal is bent or folded is disclosed. The wireless communication device includes an antenna, a first ground portion to which the antenna is grounded, and a second ground portion that is electrically separated from the first ground portion, and the wireless communication device is bent around a boundary between the first ground portion and the second ground portion. | 01-29-2015 |