-
公开(公告)号：US20210391915A1
公开(公告)日：2021-12-16
申请号：US17337779
申请日：2021-06-03
发明人： Se Hwan CHOI , Kwang Ho AHN
IPC分类号： H04B7/155 , H04B7/0413
摘要： A repeater is provided. The repeater includes: a hybrid butler matrix configured to perform beamforming of a MIMO antenna for transmitting and receiving a base station signal; a hybrid butler matrix configured to perform beamforming of a MIMO antenna for transmitting and receiving a user terminal signal; and a signal processor configured to amplify a signal to be transmitted and received through the hybrid butler matrix. Accordingly, it is easy to manufacture a repeater, heat emission and power consumption can be reduced, and a cost of production can be reduced.
-
公开(公告)号：US20230187825A1
公开(公告)日：2023-06-15
申请号：US18073720
申请日：2022-12-02
发明人： Soo Chang CHAE , Ki Jin KIM , Kwang Ho AHN
CPC分类号： H01Q3/36 , G01S13/4463
摘要： There is provided a feeding network device for improved direction estimation. The feeding network device according to an embodiment of the disclosure includes a first coupler, a second coupler, a first delay, a second delay, a crossover, a third coupler, a fourth coupler, a third delay, and a fourth delay. Accordingly, one sum beam and a plurality of difference beams are emitted through the feeding network device of the array antenna, and improved direction estimation is possible through a plurality of monopulse ratios, and accordingly, improvement of direction estimation in a monopulse radar device is expected.
-
公开(公告)号：US20230171335A1
公开(公告)日：2023-06-01
申请号：US17877194
申请日：2022-07-29
发明人： Soo Chang CHAE , Ki Jin KIM , Kwang Ho AHN
CPC分类号： H04M1/026 , H01Q3/22 , G01R29/08 , H01Q1/2283
摘要： There is provided a self-diagnostic apparatus of a magnetic coupling type. The self-diagnostic apparatus according to an embodiment includes: a signal detection line which is magnetic-coupled with an RF signal line through a magnetic coupling loop; and a signal detector configured to detect a size and a phase of an RF signal by detecting a current flowing through the signal detection line. Accordingly, the apparatus grasps and diagnoses respective operation states of channels by itself in a beamforming system, without increasing and a size of the system and degrading performance.
-
公开(公告)号：US20190158267A1
公开(公告)日：2019-05-23
申请号：US16180487
申请日：2018-11-05
发明人： Ki Jin KIM , Kwang Ho AHN
CPC分类号： H04L7/02 , H01Q3/2676 , H01Q3/2682 , H01Q3/38 , H01Q21/00 , H04B1/38
摘要： A hybrid type transceiver for broadband large area beamforming is provided. A communication device includes: antennas; first phase shifters (PSs) configured to adjust respective phases of reception signals received via the antennas; and a first time delay (TD) configured to adjust delays for the reception signals the phases of which are adjusted at the first PSs. Accordingly, in designing a broadband communication system using a large area array antenna, the structure of the system can be simplified, a size can be reduced, power consumption can be reduced, and a resolution of the system can be enhanced.
-
公开(公告)号：US20140139298A1
公开(公告)日：2014-05-22
申请号：US14080294
申请日：2013-11-14
发明人： Ki Jin KIM , Kwang Ho AHN , Sang Hoon PARK
IPC分类号： H01P1/15
CPC分类号： H01P1/10 , H03K17/693
摘要： A radio frequency (RF) switch with a transformer and a switching method thereof are provided. The RF switch includes a transmitting end transformer having a primary side connected to a transmitting end and a secondary side connected to an antenna; and a receiving end transformer having a primary side connected to the antenna and a secondary side connected to a receiving end. In a transmission mode, the transmitting end transformer is tuned on, and, in a reception mode, the receiving end transformer is turned on. Accordingly, since switching is performed based on transformers rather than transistors connected in series, the RS switch, which can achieve high linearity and low insertion loss as well as high isolation, can be implemented.
摘要翻译： 提供具有变压器的射频（RF）开关及其切换方法。 RF开关包括：发射端变压器，其具有连接到发射端的初级侧和连接到天线的次级侧; 以及接收端变压器，其初级侧连接到天线，次级侧连接到接收端。 在发送模式中，发送端变压器被调谐，并且在接收模式下接收端变压器被接通。 因此，由于基于变压器而不是串联连接的晶体管进行切换，所以可以实现可以实现高线性度和低插入损耗以及高隔离度的RS开关。
-
公开(公告)号：US20230111667A1
公开(公告)日：2023-04-13
申请号：US17877165
申请日：2022-07-29
发明人： Ki Jin KIM , Kwang Ho AHN , Soo Chang CHAE
摘要： There is provided an ultra-small size broadband coupler. A Lange coupler according to an embodiment includes: first lines which are formed in a spiral shape, and have a first port and a second port formed at one end thereof and have connection ends formed at the other end thereof; and second lines which are formed in a spiral shape, and have connection ends formed at one end thereof to be connected to the connection ends of the first lines, and have a third port and a fourth port formed at the other end thereof. Accordingly, the Lange coupler maintains broadband characteristics while minimizing its area, so that it is possible to design a small component for mobile communication and to noticeably reduce an insertion loss.
-
公开(公告)号：US20230025634A1
公开(公告)日：2023-01-26
申请号：US17623093
申请日：2020-12-22
发明人： Ki Jin KIM , Kwang Ho AHN , Soo Chang CHAE
摘要： Provided is a 5G dual port beamforming antenna. The beamforming antenna according to an embodiment of the present disclosure includes a plurality of patch antennas, and the patch antenna includes: a first patch positioned on an upper portion; a second patch positioned on a left side under the first patch and having a plurality of feeding ports formed thereon; a third patch positioned on an upper portion of a right side of the second patch; and a fourth patch positioned on a lower portion of the right side of the second patch. Accordingly, 3D wide angle beamforming is possible in an antenna to be used in 5G mobile communication systems, military radar systems, etc.
-
8.发明申请公开(公告)号：US20150229034A1
公开(公告)日：2015-08-13
申请号：US14630267
申请日：2015-02-24
发明人： Ki Jin KIM , Kwang Ho AHN , Sanghoon PARK , Jong-Won YU , Hyun Sung TAE
摘要： A control system connected to a plurality of array antenna performs beamforming. The control system requests a first antenna group predetermined from a plurality of array antenna to radiate beams to a plurality of predetermined sectors. The control system receives response beams inputting to the first antenna group in response to the radiated beams, decides a sector having comparatively stronger intensity among response beams for a plurality of sectors as an optimized sector, and requests a second antenna group to radiate beams to a plurality of sectors included in the optimized sector. The control system receives response beams inputting to the second antenna group, decides a sector related to a beam having comparatively stronger intensity among response beams for the plurality of sectors in the optimized sector, decides a plurality of beam levels, and decides a final beam pair among the plurality of the decided beam levels.
摘要翻译： 连接到多个阵列天线的控制系统执行波束形成。 控制系统请求从多个阵列天线预定的第一天线组，以将波束辐射到多个预定扇区。 控制系统接收响应于辐射波束输入到第一天线组的响应波束，将作为优化扇区的多个扇区的响应波束中具有较强强度的扇区确定为一个，并且请求第二天线组将波束辐射到 包括在优化部门中的多个扇区。 控制系统接收输入到第二天线组的响应波束，决定与优化扇区中的多个扇区的响应波束中具有相对较强强度的波束相关的扇区，决定多个波束电平，并且决定最终波束对 在多个决定的光束电平中。
-
公开(公告)号：US20240178123A1
公开(公告)日：2024-05-30
申请号：US18521056
申请日：2023-11-28
发明人： Soo Chang CHAE , Ki Jin KIM , Kwang Ho AHN
CPC分类号： H01L23/49838 , H01L23/34 , H01L24/48 , H01Q1/02 , H01Q9/0457 , H05K1/0206 , H01L2224/48091 , H01L2224/48227
摘要： There is provided a communication chip package integrating an antenna and a heat dissipation ground. In the integrated package according to an embodiment, a heat dissipation ground is coupled to a high frequency communication chip package, an antenna patch is directly disposed on an upper portion of a mold of a ceramic material, changes are made to the structure of the ceramic mold to minimize a wire bonding length to a communication chip, a capacitive power feeding method is applied through a sidewall of the ceramic mold, and heat is discharged through a lower portion of the package and also through a PCB or an additional heat dissipation structure of a lower portion of the PCB. Accordingly, an insertion loss may be minimized and an effect of heat dissipation may be maximized.
-
公开(公告)号：US20230112914A1
公开(公告)日：2023-04-13
申请号：US17563257
申请日：2021-12-28
发明人： Ki Jin KIM , Kwang Ho AHN , Soo Chang CHAE
摘要： There is provided a quasi-circulator. The quasi-circulator includes: a first coupler having an input end connected to a transmission end; a first amplifier having an input end connected to an output end of the first coupler; a second amplifier having an input end connected to the output end of the first coupler; a second coupler having one end connected to an output end of the first amplifier and an output end of the second amplifier, and the other end connected to an antenna; and a third coupler having one end connected to the output end of the first amplifier and the output end of the second amplifier, and the other end connected to a reception end. Accordingly, a loss occurring at the quasi-circulator is minimized, and eventually, efficiency of an RF FEM employed in an ultrahigh frequency radar system is enhanced.
-
-
-
-
-
-
-
-
-
搜索结果
12 条记录 (耗时 0.014 秒)
