Abstract: The present invention relates to a clamping apparatus for a support pole of a radio unit (RU) and, particularly, to a clamping apparatus s for a support pole of an RU comprising: a pole-side clamp, which is fixed to the support pole and has a locking hole recessed downward from the top thereof; and an RU-side clamp having the front end fixed to the RU, and having, at the rear end thereof, a locking pad inserted from the top toward the bottom into the locking hole of the pole-side clamp to be fixed therein, wherein the locking hole and the locking pad are inclined such that the front-to-back width gradually narrows in the direction of gravity, and thus the RU is easily attached to the support pole and each antenna device is easily oriented.

Abstract: The present invention relates to an antenna device, comprising: a front housing including antenna arrangement units in which at least one radiation element is disposed on the front sides thereof, and heat dissipation units formed between adjacent antenna arrangement units and being exposed to outside air to transfer heat generated from the rear side to the front; and a rear housing coupled to the front housing and provided with a filter for filtering RF signals and a main board on which an RF element is mounted, wherein the heat generated from the filter is transferred to the front of the front housing through the contact with the back surface of the front housing by using the filter as a heat transfer medium.

Abstract: The present invention relates to a small cell base station antenna apparatus and, more particularly, comprises: a rotatable housing having an internal space open in the back/forth direction; a steering ball joint unit coupled to the rear side of the open internal space of the rotatable housing and guiding the rotatable housing to enable steering rotation in thereof the horizontal direction with reference to an arbitrary rotation center point in the internal space of the rotatable housing; a tilting ball joint unit which is coupled to the front side of the open internal space of the rotatable housing, and tilted and rotated in the vertical direction while the front end thereof, to which an antenna module is coupled, is guided by the rotatable housing with reference to the arbitrary rotation center point of the internal space; and a multi-strand coaxial cable provided for electrical connection between a radio unit (RRH) and the antenna module.

Abstract: The present invention relates to a heat sink structure and a manufacturing method thereof, in which a plurality of heat radiation fin parts, which is configured to radiate heat, is fixed to a heat radiation surface of a heat sink main body part by laser welding, such that thicknesses of and intervals between the plurality of heat radiation fin parts may be minimized, heat dissipation performance may be improved, a weight may be greatly reduced, and production lead time and manufacturing costs may be significantly reduced by manufacturing only the heat sink main body part by casting.

Abstract: The present disclosure relates to an antenna RF module, an RF module assembly including the antenna RF modules, and an antenna apparatus including the RF module assembly. Particularly, the antenna RF module includes an RF module, a radiation element module arranged on a first side of the RF filter, and an amplification unit board arranged on a second side of the RF filter, an analog amplification element being mounted on the amplification unit board. A plurality of antenna RF modules constitute the RF module assembly, and the RF module assembly and an antenna housing constitute the antenna apparatus. Accordingly, a radome that interrupts dissipation of heat to in front of an antenna is unnecessary, and heat generated from heat generating elements of the antenna apparatus is spatially separated. Thus, it is possible that the heat is dissipated in a distributed manner toward the front and rear directions of the antenna apparatus. The effect of greatly improving performance in heat dissipation can be achieved.

Abstract: The present disclosure relates to a radio transmission or reception apparatus and a beam forming method thereof. The apparatus according to the present disclosure comprises: an array antenna for forming multiple beams having different directivities so as to transmit or receive signals through the multiple beams; a digital unit for synthesizing an orthogonal polarization pair so as to generate multi-beam signals for forming the multiple beams; and an RF unit for frequency-converting the multi-beam signals so as to output each of the frequency converted multi-beam signals to the array antenna.

Abstract: Disclosed herein are a small cell base station antenna apparatus and a connector for same. The small cell base station antenna apparatus comprises: a radio Unit (RU); at least one antenna module installed to be tiltable and steerable with respect to the a radio unit; and multifunction link configured to mediate the installation of each antenna module to the radio unit, wherein the multifunction link comprises: a center body; a first fixture connected between one end of the center body and the antenna module; and a second fixture connected between the other end of the center body and the radio unit, and wherein the first fixture and the second fixture are coupled via a ball joint to enable the antenna module to be installed to perform tilting rotation and steering rotation motions with respect to the radio unit.

Abstract: A massive multiple-input multiple-output (MIMO) antenna apparatus and a heat dissipation device therefor are disclosed. The present disclosure according to at least one embodiment provides a massive MIMO antenna apparatus including a board, a first blowing unit, and a second blowing unit. The board has at least one board surface that holds a distributed arrangement of a plurality of heat-generating components, has a width and a length longer than the width, and includes a first section having a first amount of heat generation and a second section having a second amount of heat generation greater than the first amount of heat generation, the first section and the second section being partitioned along a length direction of the board.

Abstract: A heat dissipation device for an electronic element includes a first chamber containing a printed circuit board with heating elements, and a second chamber for heat exchange. The second chamber contains a refrigerant injection part and supply part. A heat transfer part between the chambers receives heat from the heating elements and transfers it to the second chamber. A condensing part condenses injected refrigerant. The heat transfer part has evaporation-inducing ribs on its surface exposed to the second chamber, allowing injected liquid refrigerant to be adsorbed and flow downward in a zigzag pattern. This configuration enables efficient heat dissipation through phase changes of the refrigerant as it evaporates and condenses. The device may also include features like specially-shaped condensation ribs, a blower part to improve condensation, and a pressure regulator for the second chamber. This design provides improved heat dissipation performance without increasing device size.

Abstract: The present invention relates to a small cell base station antenna apparatus, and more particularly, comprises: a radio unit (RU); one or more antenna modules installed on the radio unit so as to be capable of tilting and steering operations; and a multi-function link for mediating the installation of the one or more respective antenna modules on the radio unit, wherein the multi-function link includes male connectors that electrically connect female connectors included in the antenna modules and the radio unit, thus providing the benefits of improving the workability of indoor installation and facilitating the construction of a small cell base station.

Abstract: A cooling apparatus for an electronic element includes a first chamber in a non-vacuum state, the first chamber being configured such that a printed circuit board equipped with a heat-generating element is disposed in the first chamber, a second chamber in a vacuum state, the second chamber being configured such that a spray unit configured to spray a refrigerant and a refrigerant supply unit configured to supply the refrigerant to the spray unit are disposed in the second chamber, and an evaporation unit disposed between the first chamber and the second chamber, in which the spray unit sprays the refrigerant, which is supplied by the refrigerant supply unit and condensed in the second chamber, into the second chamber, and in which the evaporation unit evaporates the refrigerant, which is sprayed into the second chamber by the spray unit.

Abstract: The present invention relates to an apparatus and method for measuring signal quality of an antenna.

Abstract: The present invention relates to a full analog phase shifter and an antenna apparatus including same, and more particularly, comprises: a variable switch panel including a first conductive pattern terminal and a second conductive pattern terminal; and an antenna element substrate on which a plurality of array antenna elements are arranged and a transmission line being in contact with the first conductive pattern terminal and the second conductive pattern terminal is pattern-printed, wherein, due to a phase shift caused by contact points of the transmission line with respect to the first conductive pattern terminal and the second conductive pattern terminal, phases of the plurality of antenna elements are linearly array distributed on a same reference phase plane, thereby providing an advantage of easily implementing a mirror symmetry structure having a linear phase distribution only by a phase shift in an RF stage without phase conversion in a digital stage.

Abstract: The present invention relate to an antenna apparatus, and more particularly, to an antenna apparatus including an antenna housing part formed in a form of an enclosure opened at a front side thereof, a board assembly disposed to be tightly attached to an internal space defined by the antenna housing part, and a plurality of antenna RF modules arranged on a front surface of the board assembly, in which the antenna housing part is divided into at least three components, and the components are manufactured and then coupled to one another to prevent distortion caused by thermal stress between upper and lower ends due to a difference in heat generation amount between heating elements mounted on the board assembly, thereby preventing the antenna housing part from being distorted by thermal stress caused by imbalance of heat generated from the heating elements, and solving a PIMD problem by preventing an unintended movement and clearance of the internal antenna RF modules.

Abstract: The present invention relates to an RF module for an antenna, and an antenna apparatus comprising same. In particular, the RF module comprises: a unit RF filter body arranged on the front surface of a main board; a radiating element unit disposed on the front surface of the unit RF filter body; and a reflector panel which is formed to be wider than the area of the vertical cross-section of the unit RF filter body while forming the front surface of the unit RF filter body, and grounds (GND) the radiating element unit, wherein a plurality of cavities opened outward to the left and right are respectively formed on the left and right sides of the unit RF filter body, each cavity comprises a left filter unit and a right filter unit which have a built-in resonator so as to perform different frequency filtering, and the left filter unit and the right filter unit are electrically connected to the radiating element unit by passing through the reflector panel.

Abstract: The present invention relates to a cooling device for an antenna apparatus. Particularly, the cooling device comprises a heat-dissipating cover which has an inner surface exposed to a thermal space and an outer surface exposed to the outside where outside air flows, and multiple wave heat-dissipating fins which are disposed in multiple rows on the outer surface of the heat-dissipating cover so as to be thermally conductive, and form curved surfaces that are continuous from the outer surface of the heat-dissipating cover to a discretionary height, in which the horizontal cross-sections at the discretionary height have straight-line shapes in which same are rotated by a predetermined angle in any one direction from the horizontal cross-sections on the outer surface of the heat-dissipating cover. Therefore, the present invention provides the advantage of enhancing heat-dissipating performance.

Abstract: The present disclosure relates to an active heat dissipation apparatus and a method of manufacturing the same, and the active heat dissipation apparatus includes a thermal conduction panel body having a refrigerant flow space configured to provide a space in which gas-liquid circulation is performed so that a refrigerant dissipates heat while changing phases in a closed space having an interior filled with the refrigerant, in which the refrigerant flow space includes a first refrigerant flow path that is a vaporization zone in which the thermal conduction panel body is supplied with heat from a heat generation element that is a heat dissipation target, and a second refrigerant flow path configured to serve as a route through which a liquid refrigerant in the refrigerant, which is condensed into a liquid state from a gaseous state, flows toward the first refrigerant flow path by surface tension or gravity.

Abstract: The present invention relates to a clamping apparatus for an antenna device and, particularly, to a clamping apparatus comprising: two or more clamping block bodies tightly combined to occupy a part of the outer surface of a support pole having a horizontal cross section in various shapes; and a clamping band coupled so as to pass through the two or more clamping block bodies, the clamping band coupling by fastening the two or more clamping block bodies to the outer surface of the support pole, wherein each of the two or more clamping block bodies has a detachable clamping gear plate having gear teeth which come in close contact with the outer surface of the support pole, thereby providing the advantage of enhancing general use with respect to replacement installation.

Abstract: A quadruple polarization antenna apparatus comprising: first dual-polarization antenna element; a second dual-polarization antenna element disposed below the first dual-polarization antenna element so that at least a portion overlaps the first dual-polarization antenna element; and a connecting part configured to connect the first dual-polarization antenna element and the second dual-polarization antenna element.