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    • 7. 发明公开
    • 컨커런트 다중밴드 고주파 증폭회로
    • 并联多频RF放大器电路
    • KR1020150087669A
    • 2015-07-30
    • KR1020140007880
    • 2014-01-22
    • 삼성전기주식회사
    • 성낙균
    • H03F3/193H03F1/56
    • H03F3/193H03F1/565H03F3/211H03F2200/111H03F2200/222H03F2200/225H03F2200/387H03F2200/39H03F2200/391
    • 본발명은컨커런트다중밴드고주파증폭회로에관한것으로, 하나의입력단을통한입력신호에포함된제1 및제2 밴드신호각각에대해임피던스매칭을수행하는입력임피던스매칭부; 상기입력임피던스매칭부를통한상기제1 및제2 밴드신호를각각증폭하는제1 및제2 밴드증폭부를포함하는입력증폭부; 상기제1 및제2 밴드증폭부에공통연결된제1 공통노드와접지사이에연결되어, 입력임피던스매칭을위한임피던스소자를갖는공통접지회로부; 및상기제1 및제2 밴드증폭부각각으로부터의신호를증폭하는출력증폭부; 를포함할수 있다.
    • 本发明涉及同时多频带射频(RF)放大器电路。 并发多频带RF放大器电路可以包括:输入阻抗匹配部,其通过输入端子对包括在输入信号中的第一和第二频带信号中的每一个执行阻抗匹配; 输入放大部分,其包括通过输入阻抗匹配部分放大第一和第二频带信号的第一和第二频带放大部分; 公共接地电路部分,其连接在接地和连接到第一和第二频带放大部分的第一公共节点之间,并具有用于输入阻抗匹配的阻抗元件; 以及分别放大来自第一和第二频带放大部分的信号的输出放大部分。
    • 9. 发明授权
    • 전력 증폭 장치
    • 功率放大器装置
    • KR101128486B1
    • 2012-03-27
    • KR1020100117112
    • 2010-11-23
    • 포항공과대학교 산학협력단
    • 김범만강대현
    • H03F1/07H03F3/60
    • H03F1/0288H03F1/42H03F1/565H03F2200/387H03F2200/39H03F2200/429
    • PURPOSE: A power amplifier is provided to eliminate an offset line by compensating for an output capacitor component in a device with an inductor or micro strip line of a DC power source applying channel in first and second amplifiers. CONSTITUTION: A power divider(201) distributes a proper input voltage to a first amplifier(230) and a second amplifier(240) in the front of first and second input matching circuits(210,220). The first input matching circuit for input matching is arranged in a front terminal of the first amplifier. The second amplifier is connected with the first amplifier in parallel. The second input matching circuit for the input matching is arranged in the front terminal of the second amplifier. A first output matching circuit(250) is located in an output terminal of the first amplifier. A second output matching circuit(260) is located in the output terminal of the second amplifier. A third output matching circuit(270) connects the first output matching circuit of a first amplifier path and the second output matching circuit of a second amplifier path.
    • 目的:提供功率放大器以通过补偿具有在第一和第二放大器中的直流电源施加通道的电感器或微带线的器件中的输出电容器部件来消除偏移线。 构成:功率分配器(201)向第一和第二输入匹配电路(210,220)的前面的第一放大器(230)和第二放大器(240)分配适当的输入电压。 用于输入匹配的第一输入匹配电路被布置在第一放大器的前端。 第二放大器与第一放大器并联连接。 用于输入匹配的第二输入匹配电路被布置在第二放大器的前端。 第一输出匹配电路(250)位于第一放大器的输出端。 第二输出匹配电路(260)位于第二放大器的输出端。 第三输出匹配电路(270)连接第一放大器路径的第一输出匹配电路和第二放大器路径的第二输出匹配电路。
    • 10. 发明授权
    • 스플릿패스선형절연회로장치및방법
    • KR100366912B1
    • 2003-08-02
    • KR1019960000234
    • 1996-01-09
    • 텍트로닉스 인코포레이티드
    • 클리포드이.베이커마이클피.카우
    • G01R19/00
    • H03F3/38G01R15/24H03F2200/273H03F2200/276H03F2200/39
    • A split-path isolation amplifier (10) employs a transformer (30) in a high path (26) and a single-input, dual-output closed-loop optocoupler (66) in a low path (24) to achieve a flat, wide frequency response without need for frequency compensation adjustments. In a low path frequency region (106), the optocoupler provides all or most of the signal to the output. The isolation amplifier employs a substantially overlapped crossover frequency region (104) in which the high path signal is applied to a primary winding (28) of the transformer, and the low path signal is applied differentially to secondary windings (40, 42) of the transformer. At frequencies below the crossover frequency range, the signal from the optocoupler dominates as the signal coupled from the primary winding rolls off. At frequencies above the crossover frequency range, the signal coupled from the primary winding dominates as the signal from the optocoupler rolls off. At frequencies within the crossover frequency range magnetic flux components generated by the primary and secondary transformer windings co-act to provide a combined output signal having a flat frequency response. The only adjustments are those required to match the gain of the low path to the gain of the high path and to compensate for any offset in the low path.
    • 分路隔离放大器(10)采用高路径(26)中的变压器(30)和低路径(24)中的单输入双输出闭环光耦合器(66)来实现平坦, 宽频率响应而无需进行频率补偿调整。 在低通道频率区域(106),光耦合器将全部或大部分信号提供给输出端。 隔离放大器采用基本上重叠的交叉频率区域(104),其中高路径信号被施加到变压器的初级绕组(28),并且低路径信号被差分地施加到变压器的次级绕组(40,42) 变压器。 在低于交叉频率范围的频率下,来自光耦合器的信号占主导地位,因为从初级绕组耦合的信号滚降。 在交叉频率范围以上的频率下,随着来自光耦合器的信号滚降,从主绕组耦合的信号占主导地位。 在交叉频率范围内的频率处,由主变压器绕组和副变压器绕组产生的磁通量分量共同作用以提供具有平坦频率响应的组合输出信号。 唯一的调整是使低路径的增益与高路径的增益相匹配并补偿低路径中的任何偏移所需的调整。