Kmw Inc

Sung-Hwan So

Young-Chan Moon

In-Ho Kim

Oh-Seog Choi

Dong-Hun Lee

Ki-Hoon Woo

Sang-Hun Lee

Jong-Han Kim

Kwang-Seok Choi

Yong-Won Seo

Hyoung-Seok Yang

Soon-Wook Kim

Seong-Ha Lee

Jae-Hwan Lim

Hun-Jung Jung

Seong-Man Kang

Jae-Jung Choi

Goog-Seong Jeong

Youn-Moon Han

Eun-Suk Jung

Dae-Myung Park

Jae-Jeng Choi

The present disclosure relates to an antenna device for a mobile communication system, including a reflection plate, a service band separator/coupler and a radome. The reflection plate is configured in a plate shape, multiple radiation elements being mounted on one surface of the reflection plate so as to transmit/receive radio signals. The service band separator/coupler is installed on the other surface of the reflection plate so as to separate/couple the service band of the corresponding antenna device. The radome is configured in the shape of an integrated barrel that surrounds the reflection plate and the service band separator/coupler as a whole.

Antenna device for mobile communication system

The present invention is an antenna system of a mobile communication base station, comprising: a signal separation unit which is arranged within a radome of an antenna, and which separates a synthetic signal of a wireless signal transmitted from a main system of a base station through a feeder cable, a direct current power signal and a control signal having a preset format for controlling the antenna, in such a manner that the direct current power signal and the control signal are output by being separated from the wireless signal and the wireless signal is provided to an antenna unit; and equipment to be remotely controlled having a modem for receiving the direct current power signal and the control signal output from the signal separation unit and using the direct current power signal as an operating power and converting the control signal into a format which is preset to be internally recognizable in the radome of the antenna, the equipment to be remotely controlled performing an antenna control operation according to a control signal.

Antenna system of mobile communication base station

The present invention relates to a multi-band, multi-polarized wireless communication antenna, which comprises: a reflector; at least one first radiation module of a first band which is installed on the reflector; and at least one second or third radiation module of a second band or a third band installed on the reflector, wherein the first radiation module comprises first to fourth radiating elements having a dipole structure, the first to fourth radiating elements are configured such that every two radiating arms thereof are connected in the shape of letter '&#xac;', one of the two radiating arms is configured to be placed side by side along side of the reflector, and the second or third radiation module is installed to be included within an installation range of the first radiation module.

Multi-band, multi-polarized wireless communication antenna

The present invention relates to a variable beam control antenna for a mobile communication system, the antenna comprising: a radome formed on the front surface at which a signal is emitted; multiple emitters vertically arranged in at least one row; a frame portion for supporting the radome and the multiple emitters; and a direction-changing module which rotates each of the multiple emitters vertically and horizontally with respect to a reference point in order to change the emission direction of the multiple emitters.

Variable beam control antenna for mobile communication system

Provided is an apparatus for tuning the voltage standing wave ratio (VSWR) of a base station system in a wireless communication network, the apparatus comprising: a VSWR changing unit for changing the characteristics of the VSWR of an antenna by changing electrical signal transmission characteristics of an internal power feedline by means of an external operation, or by changing the characteristics for transceiving a radiating member; a driving unit for driving the VSWR changing unit in accordance with a control signal; a VSWR detection unit for detecting the corresponding VSWR for the installed antenna and generating a detection signal on the basis thereof; and a control unit for controlling the actions of the VSWR changing unit for changing the VSWR characteristics by controlling the operation of the driving unit, if a VSWR characteristic is determined to be in an abnormal state on the basis of the detection signal generated by the VSWR detection unit.

Apparatus for tuning voltage standing wave ratio of base station system in wireless communication network

The present invention relates to an antenna of a mobile communication base station, comprising; an RET driving unit, an RAS driving unit, and an RAB driving unit, each comprising a driving motor, for driving electrical and mechanical devices for respectively adjusting RET, RAS and RAB; and multi-function equipment for controlling the driving of the RET driving unit, the RAS driving unit and the RAB driving unit by communicating with a main system of a base station such that at least a control signal for controlling the RET, the RAS, and the RAB is received.

Antenna of mobile communication base station and method for controlling same

The present invention relates to a dual polarization antenna comprising a reflection plate, and a radiating module including first to fourth radiating elements having respective first to fourth radiating arms having respective bent portions. The bent portions of the first to fourth radiation arms are sequentially adjacent to each other, and sequentially formandshaped structures. Theandshaped structures are located on a third quadrant, a fourth quadrant, a second quadrant, and a first quadrant, respectively. The first to fourth radiating elements have supports integrally extending from the bent portions of the first to fourth radiating arms to the reflection plate. The radiating module includes a first feeder line installed to transmit signals to the first and third radiating arms, and a second feeder line installed to transmit signals to the second and fourth radiating arms.

Dual polarization antenna for a mobile communication base station, and multiband antenna system using same

The present invention provides a coaxial RF cable connection device that connects a coaxial RF cable to a printed circuit board having one side on which a signal transmission pattern is formed and having another side on which a ground plane is formed. The devices has central body with a support opening into which the cable is penetrated and inserted and a solder block with a pair of auxiliary bodies respectively protruded from both sides of the central body. The printed circuit board has a cutting portion formed by cutting and removing a part of the edge. A pair of through holes are formed on both sides of the cutting portion and is soldered on one side of the printed circuit board.

Cable connection device

Disclosed is a dual-band dual-polarized antenna for a mobile communication base station, which includes: a reflection plate; a first radiation device module for transmitting and receiving two linear orthogonal polarizations for a first frequency band, the first radiation device module generally having a square shape, the first radiation device module including a plurality of dipoles arranged to form the square shape, each of the dipoles substantially having a transverse side and a vertical side; and a second radiation device module for a second frequency band which is arranged within the square shape of the first radiation device module, and includes a plurality of dipoles generally arranged to form a cross-shape.

Growing community of inventors

Gyeonggi-do, South Korea

Sung-Hwan So