-
公开(公告)号：US20220416826A1
公开(公告)日：2022-12-29
申请号：US17895034
申请日：2022-08-24
Applicant: KMW INC.
Inventor： Min Seon YUN , Joon Hyong SHIM , Young Chan MOON
Abstract: Disclosed is a multi-band transmitter for transmitting a multi-band signal. The multi-band transmitter comprises: a pre-distortion unit including a first digital pre-distorter (DPD) which pre-distorts a first band signal and a second DPD which pre-distorts a second band signal discontinuous from the first band signal; a conversion unit which analog-converts the pre-distorted first band signal and the pre-distorted second band signal; an amplification unit including a first power amplifier (PA), which amplifies the analog-converted first band signal, and a second PA, which amplifies the analog-converted second band signal; and a feedback unit which digital-converts the amplified first band signal to feed the digital-converted first band signal back to the first DPD and digital-converts the amplified second band signal to feed the digital-converted second band signal back to the second DPD. The pre-distortion unit performs pre-distortion by using the fed-back first band signal and the fed-back second band signal.
-
公开(公告)号：US20220094386A1
公开(公告)日：2022-03-24
申请号：US17540286
申请日：2021-12-02
Applicant: KMW INC.
Inventor： Duk Yong KIM , Min Seon YUN , Bae Mook JEONG , Chang Seob CHOI , Su Won LEE
Abstract: The present invention relates to a time-division duplex (TDD) antenna apparatus which can reduce signal loss, and thereby minimize the noise figure (NF) of a system and extend uplink coverage of the system, by separating a transmitter circuit from a receiver circuit of the antenna apparatus, and disposing a low noise amplifier (LNA) of the receiver circuit between a reception antenna and a reception filter of the receiver. A time-division duplex antenna apparatus according to an embodiment of the present invention includes: a transmitter which includes at least one transmission antenna module and transmits a downlink signal through a first path; a receiver which includes at least one reception antenna module and receives an uplink signal through a second path that is separated from the first path without any overlapping portions thereof; and a controller which controls the transmitter and the receiver in a time-division duplex manner.
-
公开(公告)号：US20230327327A1
公开(公告)日：2023-10-12
申请号：US18204462
申请日：2023-06-01
Applicant: KMW INC.
Inventor： Duk Yong KIM , Young Chan MOON , Joon Hyong SHIM , Sung Hwan SO , Bae Mook JEONG , Min Seon YUN , Kyo Sung JI , Chi Back RYU , Sung Ho JANG , Jae Hong KIM , Oh Seog CHOI , Yong Won SEO , Won Jun PARK
Abstract: The present disclosure relates to an antenna apparatus, and especially comprises: a main body module in which a main board is mounted; an RF module which is fixed to the front so that an intermediate outside air layer is formed between the RF module and the main body module, and in which an RF filter unit and an antenna element unit are mounted; and an amplification unit module which is disposed so as to be exposed in the intermediate outside air layer between the main body module and the RF module, and comprises an amplification unit substrate having analog amplification elements mounted thereon, wherein heat generated from heating elements mounted on the main board is dissipated through at least any one of the front and back of the main body module, and heat generated from the amplification unit module is directly dissipated through the intermediate outside air layer, and thus the advantage of enabling maximum heat dissipation performance is provided.
-
公开(公告)号：US20230291117A1
公开(公告)日：2023-09-14
申请号：US18199336
申请日：2023-05-18
Applicant: KMW INC.
Inventor： Duk Yong KIM , Young Chan MOON , Nam Shin PARK , Sung Ho JANG , Jae Hong KIM , Joon Hyong SHIM , Bae Mook JEONG , Min Seon YUN , Seong Min AHN , Jae Eun KIM , Sung Hwan SO , Yong Won SEO , Oh Seog CHOI , Kyo Sung JI , Chi Back RYU
Abstract: The present disclosure relates to an antenna RF module and an antenna apparatus including the antenna RF modules. The antenna RF module includes an RF filter arranged on a front surface of a main board, a radiation element module arranged on a front surface of the RF filter, at least one reflector grill pin arranged between the RF filter and the radiation element module and grounding (GND) the radiation element module, outside air being introduced from in front of the RF filter to in back of the RF filter or being discharged from in back of the RF filter to in front of the RF filter through the at least one reflector grill pin, and a radome combined with the front surface of the RF filter and protecting the radiation element module from the outside.
-
公开(公告)号：US20230253694A1
公开(公告)日：2023-08-10
申请号：US18135156
申请日：2023-04-16
Applicant: KMW INC.
Inventor： Duk Yong KIM , Young Chan MOON , Nam Shin PARK , Sung Ho JANG , Jae Hong KIM , Joon Hyong SHIM , Bae Mook JEONG , Min Seon YUN , Sung Hwan SO , Yong Won SEO , Oh Seog CHOI , Kyo Sung JI , Chi Back RYU , Seong Min AHN , Jae Eun KIM
CPC classification number: H01Q1/02 , H01Q21/0006
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.
-
Patent Agency Ranking
公开(公告)号：US20220224426A1
公开(公告)日：2022-07-14
申请号：US17709437
申请日：2022-03-31
Applicant: KMW INC.
Inventor： Duk Yong KIM , Min Seon YUN
IPC: H04B17/318 , H01Q1/08 , H01Q3/02 , H04B17/11
Abstract: The present invention relates to an apparatus and method for measuring signal quality of an antenna. The apparatus according to the present invention includes a communication unit configured to receive signal quality measurement data from a plurality of terminal devices disposed at predetermined positions within a network, a signal quality calculation unit configured to calculate a signal quality measurement value of an antenna based on the signal quality measurement data received from any one of the plurality of terminal devices, a rotation determination unit configured to compare a target signal quality value of the antenna with the calculated signal quality measurement value and determine a rotation direction and an angle of the antenna on the basis of a difference value between the target signal quality value and the signal quality measurement value, and a control unit configured to transmit an adjustment signal including information on the determined rotation direction and the determined angle of the antenna to a clamping device configured to adjust a rotation of the antenna.
-
7.发明公开公开(公告)号：US20230411842A1
公开(公告)日：2023-12-21
申请号：US18205507
申请日：2023-06-03
Applicant: KMW INC.
Inventor： In Ho KIM , Hee Sub KIM , Min Seon YUN , Jae Woo CHOI , Ju Hun LEE , Young Ji HONG , Mun Gyu PARK , Gun Woo KIM
Abstract: The present invention relates to remotely monitoring and controlling the direction of an antenna device measured in real time on the basis of three-dimensional spatial direction information of the antenna device. The three-dimensional spatial direction information of the antenna device measured in real time by a beam navigator makes it possible to align and manage the antenna device remotely by using a remote-controlled tilting and steering (RTS) means provided in the antenna device.
-
公开(公告)号：US20230282978A1
公开(公告)日：2023-09-07
申请号：US18138078
申请日：2023-04-23
Applicant: KMW INC.
Inventor： Duk Yong KIM , Young Chan MOON , Joon Hyong SHIM , Sung Hwan SO , Bae Mook JEONG , Min Seon YUN , Kyo Sung JI , Chi Back RYU , Sung Ho JANG , Jae Hong KIM , Oh Seog CHOI , Yong Won SEO
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. The antenna RF module includes an RF filter arranged on a front surface of a main board, a radiation element module arranged on a first side of the RF filter, and a reflector arranged between the RF filter and the radiation element module in such a manner as to ground (GND) the radiation element module and, at the same time, to serve as an intermediary for dissipating heat generated in the RF filter to the outside. 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 advantage of greatly improving performance in heat dissipation can be achieved. Moreover, the advantage of improving the ease with which the antenna RF module is assembled can be achieved.
-
公开(公告)号：US20230268648A1
公开(公告)日：2023-08-24
申请号：US18141495
申请日：2023-05-01
Applicant: KMW INC.
Inventor： Young Chan MOON , Min Seon YUN , Tae Youl OH , Kyung Hoon KWON
Abstract: Disclosed are a method for temporal/spatial polarized beams and channel non-reciprocity correction and a multi-beam antenna apparatus using the same. According to one aspect of the present disclosure, a multi-beam antenna apparatus includes an array antenna including transmission antenna elements used for forming a plurality of transmission beams and reception antenna elements used for forming a plurality of reception beams. The multi-beam antenna apparatus separates polarized beams temporally and spatially by using two kinds of different orthogonal polarizations, while corrects a channel non-reciprocity which occurs due to temporal polarization separation.
-
公开(公告)号：US20230253695A1
公开(公告)日：2023-08-10
申请号：US18135157
申请日：2023-04-16
Applicant: KMW INC.
Inventor： Duk Yong KIM , Young Chan MOON , Nam Shin PARK , Sung Ho JANG , Jae Hong KIM , Joon Hyong SHIM , Bae Mook JEONG , Min Seon YUN , Sung Hwan SO , Yong Won SEO , Oh Seog CHOI , Kyo Sung JI , Chi Back RYU , Seong Min AHN , Jae Eun KIM
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 filter, 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.
-
-
-
-
-
-
-
-
-
Search Results
24
records
(took 0.025 seconds)
