Patent application number | Description | Published |
20100259443 | ANTENNA SYSTEM FOR MOBILE VEHICLES - The present invention relates to an antenna system mounted on a mobile vehicle. In the present invention, a power distributor and a part of a high-frequency module that includes a frequency converter are placed in an external fixed unit that is placed outside a radome. In addition, an active cooler/cooling fin, a heater, and an air circulation fan are placed at an internal bottom plane of the antenna system, and a cooling fin and cooling fan are placed at an external bottom plane of the antenna system. | 10-14-2010 |
20110198058 | HEAT EXHAUSTION STRUCTURE FOR HEAT DISSIPATING DEVICE - A heat exhaustion structure for a heat dissipating device is provided. The present invention relates to a heat exhaustion structure for a heat dissipating device, and more particularly, to a heat exhaustion structure that may effectively exhaust an internal heat generated by heat dissipating devices included in a semiconductor package and in a large number of electronic products. | 08-18-2011 |
20120044125 | CABLE NETWORK ANTENNA AND THE PRODUCING METHOD THEREOF - A cable network antenna and a manufacturing method thereof are provided. The cable network antenna maintains correct positions of nodes at which a plurality of cables intersect, using a circumferential truss that minimizes transformation of a reflecting surface. Accordingly, accuracy of the reflection surface is achieved. | 02-23-2012 |
20130099972 | ANTENNA APPARATUS - Provided is an antenna apparatus which employs a small number of antenna devices and is intended to obtain a desired pattern without adjusting current level and phase of each antenna device. The antenna apparatus includes a first ridge horn antenna, and a second ridge horn antenna spaced apart from the first ridge horn antenna by a predetermined distance. Here, a multi-beam pattern is generated using a third-order mode beam pattern of a synthetic beam obtained by synthesizing beams respectively radiated from the first and second ridge horn antennas. Accordingly, the antenna apparatus can be simplified, and a desired multi-beam pattern can be obtained without adjusting signal level and phase of each antenna device. Also, by employing the ridge horn antennas as array devices, the antenna apparatus can be used in a wide frequency band. | 04-25-2013 |
20130127680 | ANTENNA APPARATUS - Provided is an antenna apparatus which employs a small number of antenna devices and is intended to obtain a desired pattern without adjusting amplitude level and phase of each antenna device. The antenna apparatus includes a first ridge horn antenna, and a second ridge horn antenna spaced apart from the first ridge horn antenna by a determined distance. Here, a multi-beam pattern is generated using a third-order mode beam pattern of a synthetic beam obtained by synthesizing beams respectively radiated from the first and second ridge horn antennas. Accordingly, the antenna apparatus can be simplified, and a desired multi-beam pattern can be obtained without adjusting signal level and phase of each antenna device. Also, by employing the ridge horn antennas as array devices, the antenna apparatus can be used in a wide frequency band. | 05-23-2013 |
20130271233 | APPARATUS AND METHOD OF TUNING MICROWAVE FILTER - Disclosed are an apparatus and a method of tuning a microwave filter. An apparatus for tuning a microwave filter according to the present invention includes: a measurement device configured to measure a scattering (S) parameter curve of a microwave filter desired to be tuned; a control device configured to perform tuning so that a shape of the S parameter curve according to a movement of a preselected tuning screw is matched to a shape of a target S parameter curve, and then determine a quantity of transfer of the tuning screw based on feature points on the S parameter curve by using a least squares method in which a preset weight is reflected; and a tuning device configured to move the tuning screw based on the determined quantity of transfer of the tuning screw. | 10-17-2013 |
20140041444 | APPARATUS FOR ANTENNA WEIGHTLESSNESS DEPLOYMENT TEST - Disclosed is an apparatus for an antenna weightlessness deployment test. The apparatus for an antenna weightlessness deployment test includes: a pair of first direction mobile support shafts mounted in parallel at a predetermined distance; first direction mobile deployment apparatuses mounted to be supported by an air bearing so as to slidably move on the first direction mobile support shaft; a second direction mobile support shaft mounted to connect the first direction mobile deployment apparatuses with each other; and second direction mobile deployment apparatuses mounted to be supported by an air bearing so as to slidably move on the second direction mobile support shaft. | 02-13-2014 |
20140077893 | SUBSTRATE INTEGRATED WAVEGUIDE COUPLER - Disclosed is a substrate integrated waveguide coupler. The substrate integrated waveguide coupler according to the present invention includes: a substrate; an upper conducting plate applied to an upper portion of the substrate; a lower conducting plate applied to a lower portion of the substrate; two peripheral via holes disposed parallel to each other on both sides of the substrate, respectively, and being of a pipeline type electrically connecting the upper conducting plate and the lower conducting plate to each other; and an inner via hole disposed between the two peripheral via holes, and having a center thereof separated by a preset distance and forming a short slot functioning to couple input signals. | 03-20-2014 |
20140077901 | COMPACT WAVEGUIDE TERMINATION - Provided is a compact waveguide termination including: a waveguide, a termination coupled with the waveguide and formed with a groove, and a thin film resistor part coupled with the groove and configured to attenuate an input signal at a central region of the waveguide, thereby improving frequency performance. | 03-20-2014 |
20140087678 | APPARATUS AND SYSTEM FOR RECEIVING WIRELESS SIGNAL WITH ANTI-JAMMING - The apparatus for receiving a wireless signal with anti-jamming includes: a wireless signal receiving unit receiving a wireless signal and including at least one antenna; and a jamming signal blocking unit disposed in front of the wireless signal receiving unit to block a jamming signal input from at least one direction and having a size or an interval from the wireless signal receiving unit determined according to at least one of an antenna pattern of the wireless signal receiving unit, a direction in which the jamming signal is input, and a level of the jamming signal. According to an exemplary embodiment of the present invention, it is possible to smoothly receive a targeted signal while blocking the jamming signal under the environment in which a general signal and the jamming signal coexist. | 03-27-2014 |
20150035623 | VARIABLE HIGH FREQUENCY FILTER DEVICE AND ASSEMBLY - A tunable filter device that changes a central frequency and a bandwidth is provided. The tunable filter device may include a body forming a cavity together with a cover, a resonator attached to or integrally formed on a lower surface of the cavity, a frequency-tuning element including a head and a shaft, the shaft passed through the cover and inserted in the resonator, and a cam disposed on the head to contact the head, wherein an insertion length of the shaft is controlled by the cam. | 02-05-2015 |