Kmw Inc

Seong-man Kang

Dae-myung Park

Yong Hee Han

Sung-hwan So

Inho Kim

Hyoung-seok Yang

Gyo Jin Jo

Hae Ri Roh

Chang Won Seo

In Ho Kim

In-Ho Kim

Jin Soo Yeo

Sang-hun Lee

Eun-suk Jung

Yoon Yong Kim

Disclosed is a phase shifter. According to an embodiment of the present invention, provided is a phase shifter comprising: an elongated fixed board unit including one or more fixed circuit boards each having a circuit pattern formed on one surface thereof, a guiding bracket surrounding the fixed board unit and fixed to the fixed board unit, and one or more moving board units disposed between the guiding bracket and at least one surface of the fixed board unit, guided by the guiding bracket, and including one or more moving circuit boards having conductive strips formed thereon that are coupled to the circuit patterns on the fixed circuit boards.

Phase shifter including a fixed board unit and at least one moving board unit that is completely surrounded by a guiding bracket

The present disclosure in at least one embodiment provides a wireless communication device, comprising a radome comprising a first locking unit and a sealing protrusion formed along at least one side end, a lower case formed along at least one side end and including a sealing protrusion groove which is configured to receive at least part of the sealing protrusion and a second locking unit, and a fastener which is fastened to the first locking unit and the second locking unit to fix the lower case and the radome.

Wireless communication device

Phase shifter including a fixed board unit and at least one moving board unit, where a guide bracket guides the at least one moving board unit relative to the fixed board unit

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

An antenna mounting structure is disclosed. According to an embodiment of the present invention, provided is an antenna mounting structure comprising: a parapet mount part; a parapet contact part vertically connected to one end of the parapet mount part; a mount extension part vertically connected to the other end of the parapet mount part, disposed parallel to the parapet contact part, and is connected and fixed to an inner surface of a parapet wall by means of a first connecting means; and an antenna coupling part adjacently disposed to the parapet contact part and configured to be coupled with an antenna.

Antenna mounting structure

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

A phase shifter according to at least one embodiment of the present disclosure has a housing provided on both surfaces with respective shifting units. Each shifting unit is composed of a fixed board and a moving board. Movement of the moving board causes a phase-shifted signal to be simultaneously transferred from both surfaces of the housing to output ports. This allows more effective use of the space of the phase shifter and therearound.

Growing community of inventors

Hwaseong-si, South Korea

Seong-man Kang