Kmw Inc

Hyoung-seok Yang

Inho Kim

In-ho Kim

Young-Chan Moon

Hee Joon Kim

Seong-man Kang

Oh-seog Choi

In-Ho Kim

Sung-hwan So

Sang-Hyeong Kim

Moonshik Lee

Hye-Mi Jung

Jeong Uk Park

Jin Suk Seo

Myunggil Song

Oh-Seong Choi

An antenna assembly including an antenna reflector steering mechanism is disclosed. A reflector steering structure for adjusting the horizontal azimuth of a reflector includes a drive motor disposed on the rear surface of the reflector, a planet gear rotated by the drive motor, and a sectorial rack gear engaged with the planet gear and fixed to a support shaft, thereby achieving a compact design of an entire antenna structure. Further, by applying a structure with enhanced electrical insulation to rolling and slide contact portions of the drive unit and a portion undergoing change in contact pressure, radio performance of the antenna system may be prevented from changing according to steering of the reflector.

Antenna assembly

The present disclosure provides a shield wall for shielding multiple individual antenna modules of a massive MIMO antenna from each other. A shield wall according to at least one embodiment of the present disclosure is formed by a plurality of staple-shaped unit partitions arrayed longitudinally of the shield wall, wherein the unit partitions are designed to have optimal widths and heights according to the frequency band in use, and are arranged at a predetermined interval or less with reference to the frequency band in use, thereby providing an antenna structure which satisfies both the X-POL isolation and CO-POL isolation characteristics and can be easily fabricated in a compact, lightweight design.

Antenna device

Provided, as a multi-divisional antenna, in the present disclosure, is a canister antenna having a plurality of divided antennas arranged so as to have an integrated appearance. The antennas are fixed to an adapter with strong tension by using a connection member such as a wire. The multi-divisional antenna according to the present disclosure is solid, low cost, and convenient with respect to manufacturing, installation, and maintenance.

Multi-divisional antenna

An extendable cable distribution device in accordance with an embodiment of the present disclosure can include a main block for receiving the end portion of a composite cable supplied from the outside, and providing the passage through which the received composite cable is distributed; at least one sub-block located to be detachable at one side of the main block, and for guiding the distribution direction of a part of the composite cable distributed while passing through the main block; and a connector located on the outer circumferential surface of the at least one sub-block, and electrically connected with at least part of the distributed cable. According to an embodiment of the present disclosure, it is possible to provide the cable distribution device capable of distributing the supplied composite cable and rotating the distributed cable depending upon the direction extended to the outside. In addition, according to an embodiment of the present disclosure, when the distributed cable is added, it is possible to simply extend the cable by the number or in the direction desired by an installer by additionally mounting the modular sub-block.

Extendable cable distribution device and method for manufacturing extendable cable distribution device

A compact antenna apparatus for a mobile communication system includes: a radome having at least one frequency band radiating element provided therein; at least one phase shifter portion which is provided in an inner side of the radome and which is connected to the radiating element to adjust a tilting angle of the radiating element; and a rotary knob portion which is provided so as to be exposed to the outside of the radome and which is directly coupled to the phase shifter portion to drive a phase shifter.

Compact antenna apparatus for mobile communication system

An antenna device according to one of various examples of the present invention can comprise: an antenna module; a radio remote head (RRH) for receiving signals from the antenna module and a base station; guide modules for guiding the RRH such that the RRH slidably moves in an inclined state in the antenna module, for providing one end portion of the RRH to be rotated, and for providing the other end portion of the RRH to move vertically in the sliding movement direction; connection modules provided on a surface on which the antenna module and the RRH face each other, and electrically connecting the RRH and the antenna module; and coupling modules provided on one side of the RRH so as to move the connection modules, thereby mutually coupling or separating the connection modules.

Growing community of inventors

Hwaseong-si, South Korea

Hyoung-seok Yang