Abstract: The present invention relates to an antenna apparatus. In particular, the antenna apparatus comprises: a radiating element module including a plurality of antenna sub-arrays electrically connected to the front of an RF filter and arranged to implement antenna beamforming by building a predetermined number of RF chains; and a phase shifter which shifts a phase value by changing the length ratio of a physical transmission line to the plurality of antenna sub-arrays to a predetermined ratio, wherein each RF chain of the radiating element module is implemented such that the antenna sub-array is connected to one output terminal of two output terminals branching off from an input terminal of each RF chain and an additional antenna sub-array corresponding to the antenna sub-array is further arranged to be connected to the other output terminal. Accordingly, a beam with a narrow beam width and a high antenna gain may be radiated, thus providing advantages in production cost and process.

Abstract: Provided is a heat dissipating apparatus for electronic elements which has the minimum size but has improved heat dissipating performance. To this end, the heat dissipating apparatus for electronic elements, according to the present invention, comprises: a heat dissipating housing having an internal space; a shield case formed of a thermally conductive material, wherein the shield case is disposed in the heat dissipating housing and partitions the internal space into a first chamber which is a vacuum space to be filled with a refrigerant and a second chamber which is a non-vacuum space; and a printed circuit board which is disposed in the shield case and has a heat dissipating element. The shield case evaporates the refrigerant by using sensible heat transferred from the heat dissipating element to the shield case and latent heat transferred from the shield case to the first chamber.

Abstract: The present invention relates to an antenna device, and especially, comprises: a printed board assembly (PBA hereinafter) which has a plurality of antenna-related components mounted to one surface, and has a plurality of filters mounted to the other surface; and an antenna board which is stacked and disposed on the one surface side of the PBA, has a plurality of antenna elements mounted to one surface, and is connected to the filters tightly adhering to the other surface, so as to establish an electrical signal line with the filters, wherein the filters are spaced apart from the other surface of the PBA and have clamshell parts integrally formed so as to prevent a signal leakage from the electrical signal line, and thus an advantage is provided of enabling the improvement of the overall heat dissipation performance and filter performance of the filters.

Abstract: Disclosed is a frequency-division duplexing (FDD) type antenna device for implementing spatial-polarization separation of beams using a quad-polarized antenna module array. There is provided an antenna device including first radiating elements, second radiating elements, third radiating elements, and fourth radiating elements, a filter unit including first, second, third, and fourth filters that filter signals of first, second, third, and fourth signal paths, respectively, and a phase setting module configured to set phases of the filtered signals so that a first beam and a second beam radiated through the first and second radiating elements and the third and fourth radiating elements, respectively, are separated in space, wherein the first beam and the second beam have different polarization directions.

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 antenna device and, particularly, the antenna device comprises: a printed board assembly (hereinafter, referred to as “PBA”) having a plurality of antenna-related components mounted on one surface thereof, and having a plurality of filters mounted on the other surface thereof, an antenna board which is arranged to be stacked on one surface side of the PBA, and which has a plurality of antenna elements mounted on one surface thereof and connected to construct electrical signal lines with the filters in close contact with the other surface thereof, and clamshell units interposed between the other surface of the PBA and one surface of the filters to perform a signal shielding function, wherein the insides of the clamshell units include strip line connectors which absorb the assembly tolerance between the clamshell units while being partially deformed by means of the adhesion of the filters during close-coupling of the filters, and which shield a signal by means of ground surfa

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

Abstract: An antenna device may include: a main housing configured to house and fix a first board having a plurality of heating elements mounted on a rear surface thereof; at least one U-shaped heat dissipation cluster detachably coupled to the rear surface of the main housing, and filled with a predetermined refrigerant, wherein the refrigerant receives heat from the heating elements and dissipates the heat to the outside while moving along a pattern flow path formed in a distributed manner toward the outside; and at least one heat-collection mediating fixing part configured to collect heat from the heating elements and transfer the collected heat to the U-shaped heat dissipation cluster, while mediating the attachment/detachment of the U-shaped heat dissipation cluster to/from the rear surface of the main housing.

Abstract: According to one embodiment of the present disclosure, an antenna device comprising: a plate; a first dielectric plate coupled to one surface of the plate; a plurality of radiation elements arranged along a first direction on the first dielectric plate; and a plurality of first feed lines configured to supply power to the plurality of radiation elements and having an air-strip line structure, wherein the first dielectric plate includes a first groove penetrating upper and lower surfaces of the first dielectric plate and configured to allow the first feed line to float therein, and the first feed line is configured to float in the first groove.

Abstract: The present invention relates to an antenna board assembly and an antenna apparatus including same. In particular, the antenna apparatus comprises an antenna board assembly including: a reflecting panel which is provided to reflect forward antenna beams radiated from a plurality of array antenna elements provided in front; a rear panel which is stacked and coupled to the rear surface of the reflecting panel and composed of a non-conductive material; and a front panel which is stacked and coupled to the front surface of the reflecting panel and composed of a non-conductive material, wherein the rear panel and the front panel are formed as a single body through dual injection molding so as to be stacked and coupled with respect to the reflecting panel. Therefore, the present invention provides the advantage of making it possible to improve system performance through the reduction of insertion loss.

Abstract: Provided is an antenna apparatus in which antenna internal components related to a power cable and a signal cable connected to the outside of a conventional antenna are installed separately from the antenna, thus cooling efficiency is improved, the signal cable and the power cable can be neatly arranged on a support pole, and when the components related to the signal cable and the power cable are repaired, repairs can be easily carried out without separating the antenna. To this end, the antenna apparatus according to the present invention comprises: an antenna; an rotation tilt system for installing the antenna so as to be spaced apart, in the forward direction, from the support pole by a predetermined distance; and photoelectric composite unit which is disposed on the rotation tilt system, transmits and receives signals to/from the antenna, and supplies power.

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 relates to a cavity filter.

Abstract: Provided is an antenna device capable of ensuring an installation space for components related to an antenna and eliminating a dead zone of a signal transmitted or received by the antenna by tilting an antenna unit.

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: According to at least one aspect, the present disclosure provides A method for manufacturing a heating element cooling structure, the method comprising: manufacturing an upper plate, which includes a plurality of column units, by using a press mold method; manufacturing a lower plate by using the press mold method; forming a wick unit at one or more of an inner surface of the upper plate and an inner surface of the lower plate by using a laser; and bonding the upper plate and the lower plate to each other.

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 clamping apparatus for an antenna and, particularly, to a clamping apparatus for an antenna, comprising: an arm unit which is coupled to a support pole vertically provided in the up-and-down direction and extends in the horizontal direction with respect to the support pole; a clamping unit having one end provided with an antenna device and the other end coupled to the distal end of the arm unit, wherein the clamping unit is provided to be rotatable leftward and rightward or to be tiltable upward and downward, so as to rotate the antenna device; and a rotation-auxiliary mounting unit coupled onto the support pole corresponding to the lower part of the arm unit, wherein when a rotation angle of the arm unit is changed, the rotation-auxiliary mounting unit rotatably supports the arm unit in the rotation direction of the arm unit while supporting the weights of the arm unit and the antenna device.

Abstract: The present invention relates to a clamping apparatus for an antenna device, the clamping apparatus including an antenna mounting bracket coupled to a rear surface of an antenna device and configured to support the antenna device, a steering drive unit coupled to be rotatable in a horizontal direction relative to a support pole mounting bracket installed on a support pole, a tilting drive unit movably coupled to the steering drive unit, and at least one tilting link member configured to rotate the tilting drive unit relative to the steering drive unit and move the antenna mounting bracket relative to the tilting drive unit during tilting and steering operations, thereby providing an advantage of ensuring a maximum of tilting adjustment range of the antenna device.