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公开(公告)号：KR1020130032501A
公开(公告)日：2013-04-02
申请号：KR1020110096125
申请日：2011-09-23
Applicant: 한양대학교 산학협력단 , 한국항공우주연구원
IPC: H03D7/00
Abstract: PURPOSE: A frequency mixer is provided to implement low noise, low power, and high gain properties. CONSTITUTION: A frequency mixer includes an input part(100), a switching part(102), and an output part(104). The input part receives RF(Radio Frequency) signals. The switching part receives RF signals and generates IF(Intermediate Frequency) signals. The output part outputs the IF signals generated by the switching part. The RF signals outputted from the input part are transmitted to the switching part through one of two or more signal paths from the input part to the switching part.
Abstract translation: 目的：提供混频器以实现低噪声，低功率和高增益特性。 构成：混频器包括输入部分（100），切换部分（102）和输出部分（104）。 输入部分接收RF（射频）信号。 开关部分接收RF信号并产生IF（中频）信号。 输出部分输出由开关部分产生的IF信号。 从输入部输出的RF信号通过从输入部到切换部的两个以上的信号路径中的一个发送到切换部。
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公开(公告)号：KR101224087B1
公开(公告)日：2013-01-21
申请号：KR1020110060953
申请日：2011-06-23
Applicant: 한국항공우주연구원
IPC: H04B1/16
CPC classification number: H04B1/18 , H03F2200/294
Abstract: PURPOSE: An RF(Radio Frequency) front end structure of a GPS(Global Positioning System)/ Galileo complex receiver is provided to receive diversity and simultaneously receive a combination of various signal bands. CONSTITUTION: A broadband LNA(Low Noise Amplifier)(110) amplifies low noise of a received navigation signal. Each unit receives an output signal of the broadband LNA. Each channel unit executes a switching, a filtering, and an amplifying process of a desired signal of the navigation signals. A control unit controls the switching, filtering, and amplifying process of the desired signal of the navigation in order to match the channel units with a band of the desired signal. [Reference numerals] (161) First downward modulation unit; (163) Second downward modulation unit; (181) First downward modulation post-processing unit; (183) Second downward modulation post-processing unit
Abstract translation: 目的：提供GPS（全球定位系统）/伽利略复合接收机的RF（射频）前端结构以接收分集并同时接收各种信号频带的组合。 构成：宽带LNA（低噪声放大器）（110）放大接收的导航信号的低噪声。 每个单元接收宽带LNA的输出信号。 每个通道单元执行导航信号的期望信号的切换，滤波和放大处理。 控制单元控制导航的期望信号的切换，滤波和放大处理，以便将信道单元与期望信号的频带相匹配。 （161）第一向下调制单元; （163）第二向下调制单元; （181）第一向下调制后处理单元; （183）第二向下调制后处理单元
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公开(公告)号：KR101204162B1
公开(公告)日：2012-11-22
申请号：KR1020110075818
申请日：2011-07-29
Applicant: 한양대학교 산학협력단 , 한국항공우주연구원
Abstract: PURPOSE: A low noise amplifier having a load terminal of a negative resistance structure is provided to offset an effect of parasitic resistance existing within an inductor since the load terminal of the low noise amplifier is formed by combining an inductor with a cross coupled transistor. CONSTITUTION: A common source low noise amplifier comprises an amplification unit(310), a load unit(320), and an output unit(330). The amplification unit has a common source structure. The load unit comprises a third MOS(metal oxide semiconductor transistor) transistor, a fourth MOS, a first on chip inductor, and a second on chip inductor. The output unit is connected to an output terminal of the amplification unit and an input terminal of the load unit. The outputs unit outputs a RF signal amplified by the amplification unit to an outside element.
Abstract translation: 目的：提供具有负电阻结构的负载端子的低噪声放大器，以抵消存在于电感器内的寄生电阻的影响，因为低噪声放大器的负载端子通过将电感器与交叉耦合晶体管组合而形成。 构成：公共源低噪声放大器包括放大单元（310），负载单元（320）和输出单元（330）。 放大单元具有共同的源结构。 负载单元包括第三MOS（金属氧化物半导体晶体管）晶体管，第四MOS，片上电感器和片上电感器。 输出单元连接到放大单元的输出端子和负载单元的输入端子。 输出单元将由放大单元放大的RF信号输出到外部元件。
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公开(公告)号：KR1020120094263A
公开(公告)日：2012-08-24
申请号：KR1020110013647
申请日：2011-02-16
Applicant: 부산대학교 산학협력단 , 한국항공우주연구원
IPC: G01S19/36
Abstract: PURPOSE: A front end circuit is provided to eliminate noise characteristics due to a resistive feedback in the wideband low noise amplifier. CONSTITUTION: A front end circuit(10) comprises a wideband low noise amplifier(100), an output buffer(200), and an elastic wave filter(300). The wideband low noise amplifier receives a radio frequency signal. The wideband low noise amplifier drives in a plurality of frequency bands including a first frequency band and a second frequency band. The wideband low noise amplifier amplifies the radio frequency signal of the plurality of frequency bands and outputs an amplified signal. The output buffer provides output matching corresponding to the elastic wave filter. The output buffer receives the amplified signal from the wideband low noise amplifier and transfers the amplified signal to the elastic wave filter.
Abstract translation: 目的：提供前端电路，以消除由于宽带低噪声放大器中的电阻反馈引起的噪声特性。 构成：前端电路（10）包括宽带低噪声放大器（100），输出缓冲器（200）和弹性波滤波器（300）。 宽带低噪声放大器接收射频信号。 宽带低噪声放大器在包括第一频带和第二频带的多个频带中驱动。 宽带低噪声放大器放大多个频带的射频信号并输出放大的信号。 输出缓冲器提供与弹性波滤波器相对应的输出匹配。 输出缓冲器从宽带低噪声放大器接收放大的信号，并将放大的信号传送到弹性滤波器。
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公开(公告)号：KR1020090022024A
公开(公告)日：2009-03-04
申请号：KR1020070087018
申请日：2007-08-29
Applicant: 한양대학교 산학협력단 , 한국항공우주연구원
Abstract: An antenna feeding circuit and an antenna device using the same are provided to stably maintain a phase difference of a signal in a wide frequency band by using a CRLH(Composite Right/Left Handed) meta material transmitting line. An antenna feeding circuit comprises a first CRLH meta material transmitting line(602) and a second CRLH meta material transmitting line(604), and a power divider(600). The first CRLH meta material transmitting line changes a phase of a signal as a first angle. The second CRLH meta material transmitting line changes a phase of a signal as a second angle. A phase change according to a frequency change of the first CRLH meta material transmitting line and the second CRLH meta material transmitting line is regularly maintained. A first output signal of the power divider is supplied to the first CRLH meta material transmitting line. A second output signal of the power divider is supplied to the second CRLH meta material transmitting line.
Abstract translation: 提供一种天线馈电电路和使用该天线馈电电路的天线装置，通过使用CRLH（复合右/左移）元材料传输线来稳定地维持宽频带中的信号的相位差。 天线馈电电路包括第一CRLH元材料传输线（602）和第二CRLH元材料传输线（604）和功率分配器（600）。 第一CRLH元材料传输线将信号的相位改变为第一角度。 第二CRLH元材料传输线将信号的相位改变为第二角度。 定期地维持根据第一CRLH超材料传输线和第二CRLH超材料传输线的频率变化的相位变化。 功率分配器的第一输出信号被提供给第一CRLH元材料传输线。 功率分配器的第二输出信号被提供给第二CRLH元材料传输线。
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Patent Agency Ranking
公开(公告)号：KR100693315B1
公开(公告)日：2007-03-13
申请号：KR1020050129950
申请日：2005-12-26
Applicant: 한국항공우주연구원
IPC: G01R29/08
Abstract: A multipactor testing system and method using a phase detecting device in a continuous wave mode are provided to detect the multipactor generating time and exact RF(Radio Frequency) input power even in using a continuous wave as an RF signal source and to test a multipactor of all kinds of RF passive elements with low cost and simple structure. A multipactor testing system using a phase detecting device in a continuous wave mode is composed of a vacuum chamber(400) equipped with a test object(420); an RF signal generator for applying a continuous wave type RF signal to the test object from the outside of the vacuum chamber; an RF coupler electrically connected between the RF signal generator and the test object to extract an RF input signal applied from the RF signal generator and an RF reflected signal reflected from the test object; and an RF mixer detecting the phase difference between the RF input signal and the RF reflected signal by mixing the RF input signal and the RF reflected signal extracted by the RF coupler.
Abstract translation: 提供了一种使用连续波模式的相位检测装置的多重测试系统和方法，即使在使用连续波作为RF信号源的情况下，也能够检测多重器产生时间和准确的RF（射频）输入功率，并测试多重器 各种射频无源元件成本低，结构简单。 以连续波模式使用相位检测装置的多重测试系统由装备有测试对象（420）的真空室（400） RF信号发生器，用于从真空室的外部向测试对象施加连续波型RF信号; 射频耦合器，电连接在所述射频信号发生器和所述测试对象之间，以提取从所述射频信号发生器施加的射频输入信号和从所述测试对象反射的射频反射信号; 以及RF混频器，通过混合由RF耦合器提取的RF输入信号和RF反射信号来检测RF输入信号与RF反射信号之间的相位差。
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公开(公告)号：KR1020060072885A
公开(公告)日：2006-06-28
申请号：KR1020040111650
申请日：2004-12-24
Applicant: 한국항공우주연구원
Abstract: 본 발명은 인공위성 등과 같은 첨단 시스템에서 로컬 버스를 통해 대량의 데이터를 전송하고 데이터 수신 완료에 대한 사실을 한번만 확인하여 데이터 송수신에 소요되는 시간을 대폭 줄일 수 있는 통신 방법을 제공하는 것으로, 라이팅 시종신호, 소정의 모듈타입 신호 및 소정의 서브 어드레스신호를 다수의 입출력 보드들에게 전송하는 제 1 단계; 입출력 보드의 해당 서브 모듈이 제어 데이터를 보내라는 승낙신호를 상기 로컬 버스를 통해 보내옴에 따라, 입출력 라이팅신호를 전송하고 소정의 제어 데이터를 로컬 버스를 통해 연속적으로 입출력 보드의 해당 서브 모듈에게 전송한 후 라이팅 시종신호를 전송하는 제 2 단계; 제어명령이 모두 수신되면, 수신된 제어명령이 일정한 동작의 수행을 지시하는 것인지 또는 자신의 상태에 관한 데이터를 요구하는 것인지를 판단하는 제 3 단계; 제어명령이 일정한 동작을 지시하는 것이면, 수신된 제어명령이 지시하는 동작을 수행하는 제 4 단계; 및 제어명령이 상태에 관한 데이터를 요구하는 것이면, 자신의 상태 정보를 수집하고, 리딩 시종신호와 입출력 리딩신호를 로컬 버스를 통해 전송하여 입출력 리딩신호에 따라 수집한 상태 데이터를 연속적으로 입출력 컨트롤러에게 전송한 후 리딩 시종신호를 전송하는 제 5 단계를 포함한다.
로컬, 버스, 데이터, 제어, 통신-
公开(公告)号：KR101350555B1
公开(公告)日：2014-01-16
申请号：KR1020120123062
申请日：2012-11-01
Applicant: 한양대학교 산학협력단 , 한국항공우주연구원
CPC classification number: H03F1/26 , H03F1/223 , H03F1/3205 , H03F1/342 , H03F3/193 , H03F2200/294
Abstract: Disclosed are a negative feedback low noise amplifier with improved linearity and a method of designing the same. The low noise amplifier includes a first amplify unit, a second amplify unit connected to the first amplify unit, and a negative feedback unit, wherein the negative feedback unit has one end connected to an output terminal of the second amplify unit and the other end connected to an output terminal of the first amplify unit.
Abstract translation: 公开了具有改进的线性度的负反馈低噪声放大器及其设计方法。 低噪声放大器包括第一放大单元，连接到第一放大单元的第二放大单元和负反馈单元，其中负反馈单元的一端连接到第二放大单元的输出端，另一端连接 到第一放大单元的输出端子。
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公开(公告)号：KR101330472B1
公开(公告)日：2013-11-15
申请号：KR1020120110180
申请日：2012-10-04
Applicant: 한양대학교 산학협력단 , 한국항공우주연구원
IPC: H04L27/34
CPC classification number: H04L27/3405
Abstract: The present invention discloses an apparatus and a method for determining a ring ratio in an amplitude and phase shift keying (APSK) system. An apparatus for determining a ring ratio in an APSK system comprises: a ring ratio calculating unit for calculating a ring ratio to have a minimum bit error rate (BER) according to multiple signal to noise power ratios (SNR); a channel capacity calculating unit for calculating channel capacity according to the multiple SNRs using the ring ratio calculated according to the multiple SNS; a SNR selecting unit for selecting a minimum SNR having channel capacity corresponding to predetermined channel capacity depending on a coding rate among the multiple SNRs; and a ring ratio determining unit for determining a ring ratio corresponding to the minimum SNR among ring rates calculated according to the multiple SNRs. According to the present invention, a ring rate for having a minimum BER in an APSK system is possibly determined. Also, by designing an APSK signal diagram considering the minimum BER, transmission power is reduced and transmission efficiency is maximized. [Reference numerals] (300) Ring ratio determining device;(301) Ring ratio calculating unit;(303) Channel capacity calculating unit;(305) SNR selecting unit;(307) Ring ratio determining unit
Abstract translation: 本发明公开了一种用于确定振幅和相移键控（APSK）系统中的环比的装置和方法。 一种用于确定APSK系统中的环比的装置，包括：环比计算单元，用于根据多个信噪比（SNR）计算出具有最小误码率（BER）的环比; 信道容量计算单元，用于使用根据多个SNS计算的环比来根据多个SNR计算信道容量; SNR选择单元，用于根据所述多个SNR中的编码率来选择具有与预定信道容量对应的信道容量的最小SNR; 以及环比确定单元，用于确定根据所述多个SNR计算的响应速率中对应于最小SNR的环比。 根据本发明，可以确定在APSK系统中具有最小BER的振铃速率。 此外，通过设计考虑到最小BER的APSK信号图，传输功率降低并且传输效率最大化。 （300）环比确定装置;（301）环比计算部;（303）信道容量计算部;（305）SNR选择部;（307）环比确定部
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公开(公告)号：KR101255465B1
公开(公告)日：2013-04-16
申请号：KR1020110075878
申请日：2011-07-29
Applicant: 한양대학교 산학협력단 , 한국항공우주연구원
Abstract: 전압 제어 발진기의 주파수 가변 범위를 증가시키는 커패시터와 저항이 삽입된 버랙터를 이용한 전압 제어 발진기가 개시된다. 전압 제어 발진기는 커패시턴스 값을 가변하여 발진 신호를 생성하는 공진기와, 공진기의 손실을 상쇄시키는 부성 저항부 및 전압 제어 발진기에 안정된 동작 전압이 제공되도록 소정 레벨의 전류를 접지로 흘려주는 전류 공급부를 포함하되, 공진기는 소스와 드레인 사이에 제1 저항이 삽입되고, 바디 부분에 제2 저항이 삽입되며, 게이트와 소스 사이에 커패시터가 삽입된 모스 트랜지스터로 구성된 버랙터를 포함한다. 따라서, 버랙터의 최저 커패시턴스를 더욱 줄이고 최대 커패시턴스를 현저히 증가시켜서 전체 가변 커패시턴스 범위를 향상시키고, 이를 통해 전압 제어 발진기의 가변 주파수 범위를 향상시키는 효과가 있다.
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