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1. 发明申请

US20160156489A1 MILLIMETER-WAVE MODULATION DEVICE 有权
标题翻译：毫米波调制装置
公开(公告)号：US20160156489A1
公开(公告)日：2016-06-02
申请号：US14956587
申请日：2015-12-02
申请人： KOREA ELECTRONICS TECHNOLOGY INSTITUTE
发明人： Ki Jin KIM , Kwang Ho AHAN , Sang Hoon PARK
IPC分类号： H04L27/12 , H04B1/04 , H04L7/033
CPC分类号： H04B1/04 , H04L7/0331 , H04L27/2014 , H04L27/2039 , H04L2027/0016 , H04L2027/0018 , H04L2027/0055 , H04L2027/0091
摘要： Provided is a lower power and high efficiency millimeter-wave modulation apparatus capable of modulating digital data into transmitting signals in a millimeter frequency band, the millimeter-wave modulation apparatus including; a modulation part, which carries out a modulation of a constant envelope attribute, and to which a first local oscillation signal is fixed according to a rate of input data; a phase shifter adopted to shift a phase of an output of the modulation part; a power amplifier adopted to amplify an output of the phase shifter; and an antenna connected to an output of the power amplifier.
摘要翻译：提供了一种能够将数字数据调制成毫米波段的发送信号的低功率，高效率的毫米波调制装置，该毫米波调制装置包括：调制部分，其执行恒定包络属性的调制，并且根据输入数据的速率固定第一本地振荡信号; 移相器，用于移位调制部分的输出相位; 用于放大移相器的输出的功率放大器; 以及连接到功率放大器的输出的天线。

2. 发明申请

US20190158267A1 HYBRID TYPE TRANSCEIVER FOR BROADBAND LARGE AREA BEAMFORMING 审中-公开
公开(公告)号：US20190158267A1
公开(公告)日：2019-05-23
申请号：US16180487
申请日：2018-11-05
申请人： Korea Electronics Technology Institute
发明人： Ki Jin KIM , Kwang Ho AHN
IPC分类号： H04L7/02 , H04B1/38
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.

3. 发明申请

US20140139298A1 RF SWITCH WITH TRANSFORMER AND SWITCHING METHOD THEREOF 有权
标题翻译：具有变压器和开关方法的RF开关
公开(公告)号：US20140139298A1
公开(公告)日：2014-05-22
申请号：US14080294
申请日：2013-11-14
申请人： KOREA ELECTRONICS TECHNOLOGY INSTITUTE
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。

4. 发明申请

US20130147539A1 DOWN-CONVERTER, UP-CONVERTER, RECEIVER AND TRANSMITTER APPLYING THE SAME 有权
标题翻译：下变频器，上变频器，接收器和发送器
公开(公告)号：US20130147539A1
公开(公告)日：2013-06-13
申请号：US13692398
申请日：2012-12-03
申请人： Korea Electronics Technology Institute
发明人： Ki Jin KIM , Kwang Ho Ahn , Sang Hoon Park , Young Jin Kim , Eun Su Kim , Dong Hyun Baek , Seoung Yeoung Son , Jin Young Lee
IPC分类号： G06G7/16
CPC分类号： G06G7/16 , H04B1/28
摘要： A down-frequency conversion circuit and up-frequency conversion circuit, and a receiver and transmitter applying the same are provided. The down-frequency conversion circuit includes a harmonic mixer and general mixer, and thus becomes able to convert frequency using one LO (Local Oscillator) frequency, thereby reducing burden on generating LO frequency.
摘要翻译：提供了一个低频转换电路和上变频电路，以及一个接收器和发射机应用它。低频转换电路包括谐波混频器和通用混频器，因此能够使用一个LO（本地振荡器）频率转换频率，从而减少产生LO频率的负担。

5. 发明申请

US20230111667A1 ULTRA-SMALL SIZE BROADBAND COUPLER 有权
公开(公告)号：US20230111667A1
公开(公告)日：2023-04-13
申请号：US17877165
申请日：2022-07-29
申请人： Korea Electronics Technology Institute
发明人： Ki Jin KIM , Kwang Ho AHN , Soo Chang CHAE
IPC分类号： H01P5/18 , H01Q7/00
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.

6. 发明申请

US20230025634A1 5G DUAL PORT BEAMFORMING ANTENNA 有权
公开(公告)号：US20230025634A1
公开(公告)日：2023-01-26
申请号：US17623093
申请日：2020-12-22
申请人： Korea Electronics Technology Institute
发明人： Ki Jin KIM , Kwang Ho AHN , Soo Chang CHAE
IPC分类号： H01Q3/26 , H01Q9/04 , H04B7/06
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.

7. 发明申请

US20150229034A1 BEAMFORMING ARRAY ANTENNA CONTROL SYSTEM AND METHOD FOR BEAMFORMING USING THE SAME 有权
标题翻译：射束阵列天线控制系统及其使用方法
公开(公告)号：US20150229034A1
公开(公告)日：2015-08-13
申请号：US14630267
申请日：2015-02-24
申请人： KOREA ELECTRONICS TECHNOLOGY INSTITUTE
发明人： Ki Jin KIM , Kwang Ho AHN , Sanghoon PARK , Jong-Won YU , Hyun Sung TAE
IPC分类号： H01Q25/00 , H01Q3/00
CPC分类号： H01Q25/00 , H01Q3/00
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。

8. 发明申请

US20230112914A1 LOW-LOSS QUASI-CIRCULATOR 有权
公开(公告)号：US20230112914A1
公开(公告)日：2023-04-13
申请号：US17563257
申请日：2021-12-28
申请人： Korea Electronics Technology Institute
发明人： Ki Jin KIM , Kwang Ho AHN , Soo Chang CHAE
IPC分类号： H01P1/38 , H04B1/40 , H03F3/19
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.

9. 发明申请

US20220271749A1 ULTRAHIGH FREQUENCY TRAVELING-WAVE SWITCH 有权
公开(公告)号：US20220271749A1
公开(公告)日：2022-08-25
申请号：US17623040
申请日：2019-12-12
申请人： Korea Electronics Technology Institute
发明人： Ki Jin KIM , Kwang Ho AHN , Soo Chang CHAE
IPC分类号： H03K17/693 , H03K17/687
摘要： Provided is a switch having a structure having an excellent isolation characteristic even without a limiter in an ultrahigh frequency hand used for a military component. A switch according to an embodiment of the present invention comprises: multiple transistors which are connected in parallel to a path from an input terminal toward an output terminal and perform switching; and a first transmission line provided between the input terminal and a node on a path to which a first transistor is connected. By the present invention, switching can be performed in an ultrahigh frequency such as W-band while a GaN transistor is used, an insertion loss is low, an isolation characteristic is excellent, and eventually efficiency of an ultrahigh frequency circuit can be further enhanced.

10. 发明申请

US20170237402A1 RF AMPLIFIER TO INCREASE GAIN USING TRANSFORMER 有权
公开(公告)号：US20170237402A1
公开(公告)日：2017-08-17
申请号：US15391500
申请日：2016-12-27
申请人： Korea Electronics Technology Institute
发明人： Ki Jin KIM , Kwang Ho AHAN
IPC分类号： H03F1/22 , H03F3/193
CPC分类号： H03F1/223 , H03F1/347 , H03F3/193 , H03F2200/405 , H03F2200/451 , H03F2200/537
摘要： An RF amplifier to increase a gain using a transformer is provided. The amplifier includes: a first transistor configured to generate a current by amplifying and converting an input voltage; a second transistor configured to amplify the generated current; and a first transformer configured to feed an emitter current of the second transistor back to a gate. Accordingly, Gm of the transistor is boosted using the transformer, such that a high gain can be obtained with a low current. Therefore, a problem of a gain reduction caused by a parasitic capacitor at a high frequency can be solved.

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