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Patent Agency Ranking
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公开(公告)号：KR101339756B1
公开(公告)日：2013-12-10
申请号：KR1020120038394
申请日：2012-04-13
Applicant: 전자부품연구원
IPC: H03H7/12
Abstract: Q 조절이 가능한 필터 및 필터링 제어 방법이 제공된다. 본 발명의 실시예에 따른 필터는, 필터링 대역의 중심 주파수로 공진하는 공진기 및 중심 주파수 변화에 따라 변동되는 대역폭을 조정하기 위해 Q를 조절하는 리액턴스 소자를 포함한다. 이에 의해, 필터의 Q 조절이 가능하므로, 중심 주파수의 크기와 상관없이 주파수 대역폭을 좁고 일정하게 유지할 수 있게 된다.
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公开(公告)号：KR1020130115773A
公开(公告)日：2013-10-22
申请号：KR1020120038394
申请日：2012-04-13
Applicant: 전자부품연구원
IPC: H03H7/12
CPC classification number: H03H7/12 , H03H7/0115 , H03H7/34 , H03H11/48
Abstract: PURPOSE: A filter and a filtering control method thereof are provided to maintain a frequency bandwidth regardless of the size of a core frequency. CONSTITUTION: A band pass filter (BPF) (100) comprises a resonator (110) and a reactance element. The resonator resonates with the core frequency of a filtering band. A reactance element controls a quality factor in order to control a bandwidth which is changed according to core frequency changes. The input end of the reactance element comprises a first reactance variable element and a second reactance element connected to the output end of the resonator.
Abstract translation: 目的：提供一种滤波器及其滤波控制方法，以保持频率带宽，而不考虑核心频率的大小。 构成：带通滤波器（BPF）（100）包括谐振器（110）和电抗元件。 谐振器与滤波频带的核心频率谐振。 电抗元件控制质量因子，以便控制根据核心频率变化而改变的带宽。 电抗元件的输入端包括连接到谐振器的输出端的第一电抗可变元件和第二电抗元件。
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公开(公告)号：KR101264160B1
公开(公告)日：2013-05-14
申请号：KR1020110131345
申请日：2011-12-08
Applicant: 전자부품연구원
IPC: H03D7/00
Abstract: PURPOSE: A down-converter, an up-converter, a receiver and a transmitter applying the same are provided to reduce a burden for LO frequency generation by converting a frequency by using an LO(Local Oscillator). CONSTITUTION: A harmonic mixer(110) inputs a first frequency signal, an in-phase signal of a second frequency and a quadrature phase signal of a second frequency, and outputs a third frequency generated with the first frequency and the second frequency. A first mixer(120) inputs the signal of the third frequency and the in-phase signal of the second frequency, and outputs an in-phase signal of a fourth frequency generated with the third frequency and the second frequency. A second mixer(130) inputs a quadrature phase signal of the third frequency signal and the second frequency signal, and outputs a quadrature phase signal of the forth frequency generated with the third frequency and the second frequency.
Abstract translation: 目的：提供下变频器，上变频器，接收机和应用该变频器的发射机，以通过使用LO（本地振荡器）转换频率来减轻LO频率产生的负担。 构成：谐波混频器（110）输入第一频率信号，第二频率的同相信号和第二频率的正交相位信号，并输出以第一频率和第二频率产生的第三频率。 第一混频器（120）输入第三频率的信号和第二频率的同相信号，并输出以第三频率和第二频率产生的第四频率的同相信号。 第二混频器（130）输入第三频率信号和第二频率信号的正交相位信号，并输出用第三频率和第二频率产生的第四频率的正交相位信号。
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公开(公告)号：KR1020130116108A
公开(公告)日：2013-10-23
申请号：KR1020120038449
申请日：2012-04-13
Applicant: 전자부품연구원
IPC: H03D7/00
Abstract: PURPOSE: A mismatch compensation method for a harmonic elimination mixer structure is provided to rapidly compensate for mismatch and to reduce calculation time for estimating the mismatch. CONSTITUTION: A mixing device comprises mixers (121, 122, 123, 124), analog-to-digital converts (ADC) (131, 132, 133, 134), a mismatch compensation unit (140), a selector (150), and a mismatch estimation unit (160). A mixer-1 (121) generates an I-signal. A mixer-2 (122) generates a P-signal. A mixer-3 (123) generates a Q-signal. A mixer-4 (124) generates an X-signal. An ADC-1 (131) executes A/D conversion for the I-signal. An ADC-2 (132) executes the A/D conversion for the P-signal. An ADC-3 (133) executes the A/D conversion for the Q-signal. An ADC-4 (134) executes the A/D conversion for the X-signal. The mismatch compensation unit outputs mismatch between the I-signal and the X-signal by compensating for the signal phase mismatch. A selection unit selects two signals outputted from the mixers and applies the two signals to the mismatch estimation unit. The mismatch estimation unit estimates the signal phase mismatch and signal size mismatch between the signals outputted from the mixer selected by the selection unit. [Reference numerals] (140) Mismatch compensation unit; (150) Selector; (160) Mismatch estimation unit
Abstract translation: 目的：提供一种用于消除谐波混频器结构的失配补偿方法，以快速补偿不匹配，并减少估计失配的计算时间。 构成：混合装置包括混合器（121,122,123,124），模拟数字转换器（ADC）（131,132,133,134），失配补偿单元（140），选择器（150）， 和不匹配估计单元（160）。 混频器-1（121）产生I信号。 混频器-2（122）产生P信号。 混频器-3（123）产生Q信号。 混频器-4（124）产生X信号。 ADC-1（131）对I信号执行A / D转换。 ADC-2（132）执行P信号的A / D转换。 ADC-3（133）执行Q信号的A / D转换。 ADC-4（134）执行X信号的A / D转换。 失配补偿单元通过补偿信号相位失配来输出I信号与X信号之间的失配。 选择单元选择从混频器输出的两个信号，并将这两个信号施加到失配估计单元。 失配估计单元估计从由选择单元选择的混合器输出的信号之间的信号相位失配和信号大小失配。 （附图标记）（140）不匹配补偿单元; （150）选择器; （160）不匹配估计单元
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