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公开(公告)号：US20210242948A1
公开(公告)日：2021-08-05
申请号：US17160631
申请日：2021-01-28
发明人： Sunwoo KONG , Kwang Seon KIM , Jeehoon PARK , HUI DONG LEE , Seunghyun JANG , SEOK BONG HYUN
摘要： An array antenna system, and a calibration method and apparatus thereof are provided. The calibration method includes measuring a signal loop including mutual coupling between antennas included in an array antenna, calculating a ratio of a reception (RX) signal received by each antenna to an RX signal received by a reference antenna of the array antenna based on a result of the measuring, and performing calibration of the array antenna based on the ratio.
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公开(公告)号：US20220337192A1
公开(公告)日：2022-10-20
申请号：US17665405
申请日：2022-02-04
发明人： Sunwoo KONG , Bong Hyuk PARK , HUI DONG LEE , Seunghyun JANG , SEOK BONG HYUN
摘要： A method and apparatus for input matching of a passive mixer are disclosed. The passive mixer includes a differential transistor pair including a first transistor and a second transistor, a first inductor having one end connected to the first transistor and another end connected to a ground, a second inductor having one end connected to the second transistor and another end connected to a ground, and a third inductor having one end for receiving a radio frequency (RF) signal and another end connected to a ground.
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公开(公告)号：US20240222862A1
公开(公告)日：2024-07-04
申请号：US18501418
申请日：2023-11-03
发明人： Sunwoo KONG , Bong Hyuk PARK , SEUNG HUN WANG , HUI DONG LEE , Seunghyun JANG , SEOK BONG HYUN
CPC分类号： H01Q3/36 , H01Q1/48 , H01Q9/0407
摘要： A beamforming apparatus and a beamforming method using an expandable planar array antenna are provided. The beamforming apparatus that performs the beamforming method includes an array antenna in which an Elevation (EL) antenna group configured to perform beam steering in an elevation angle direction and an Azimuth (AZ) antenna group configured to perform beam steering in an azimuth angle direction are disposed on a same plane, a first chip located on a top surface of the array antenna and configured to control the beam steering in the elevation angle direction by controlling patch antennas included in the EL antenna group, and a second chip located on a bottom surface of the array antenna and configured to control the beam steering in the azimuth angle direction by controlling patch antennas included in the AZ antenna group.
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公开(公告)号：US20240194618A1
公开(公告)日：2024-06-13
申请号：US18349024
申请日：2023-07-07
发明人： HUI DONG LEE , Sunwoo KONG , Bong Hyuk PARK , SEUNG HUN WANG , Seunghyun JANG , SEOK BONG HYUN
IPC分类号： H01L23/66 , H01L23/00 , H01L23/495 , H01L23/64
CPC分类号： H01L23/66 , H01L23/4952 , H01L23/642 , H01L23/647 , H01L24/48 , H01L2223/6627 , H01L2224/48195
摘要： A semiconductor package is provided. The semiconductor package includes a semiconductor chip including an integrated circuit (IC) pad configured to output a wireless frequency signal, a lead frame including a package pad configured to receive the wireless frequency signal, a first wire of which one end is connected to the IC pad, a second wire of which one end is connected to the package pad, and a circuit element connected to the first wire and the second wire in parallel or in series. A radio frequency (RF) output impedance of the package pad or an RF output impedance of the IC pad is controlled by a type of the circuit element or a connection relationship between the circuit element, the first wire, and the second wire.
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公开(公告)号：US20220321153A1
公开(公告)日：2022-10-06
申请号：US17577272
申请日：2022-01-17
发明人： HUI DONG LEE , Sunwoo KONG , Bong Hyuk PARK , Seunghyun JANG , SEOK BONG HYUN
摘要： A transformer-based amplifier, an operating method thereof, and devices including the same are disclosed. A millimeter wave amplifier includes a first transformer positioned on an input side of the millimeter wave amplifier, a second transformer positioned on an output side of the millimeter wave amplifier, and one or more of amplification stages positioned between the first transformer and the second transformer.
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