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1. 发明申请

WO2018031194A1 SYSTEMS AND METHODS PROVIDING AN INTERMODULATION DISTORTION SINK 审中-公开
标题翻译：提供交调失真水槽的系统和方法
公开(公告)号：WO2018031194A1
公开(公告)日：2018-02-15
申请号：PCT/US2017/042395
申请日：2017-07-17
申请人： QUALCOMM INCORPORATED
发明人： GATHMAN, Timothy Donald , PATEL, Chirag Dipak , VUJCIC, Sasha , TASIC, Aleksandar Miodrag , CHEN, Wu-Hsin , VAN ZALINGE, Klaas
IPC分类号： H03F1/32 , H03F1/08 , H03F3/193 , H03F3/30 , H03F3/45 , H03H11/32
CPC分类号： H03H11/32 , H03F1/086 , H03F1/3205 , H03F1/3217 , H03F1/3223 , H03F3/19 , H03F3/193 , H03F3/21 , H03F3/3022 , H03F3/45183 , H03F3/45237 , H03F3/45475 , H03F2200/06 , H03F2200/09 , H03F2200/129 , H03F2200/144 , H03F2200/18 , H03F2200/21 , H03F2200/24 , H03F2200/294 , H03F2200/321 , H03F2200/33 , H03F2200/42 , H03F2200/451 , H03F2200/453 , H03F2200/555 , H03F2203/30069 , H03F2203/45091 , H03F2203/45101 , H03F2203/45116 , H03F2203/45136 , H03F2203/45208 , H03F2203/45288 , H03F2203/45374 , H03F2203/45458 , H03F2203/45526 , H03F2203/45528 , H03F2203/45544 , H03F2203/45596 , H03F2203/45712 , H04L7/0337
摘要： A circuit includes an active balun having an RF signal input and having differential signal outputs, the active balun including a first pair of transistors coupled to the RF signal input, the first pair of transistors including a first transistor of a first type and a second transistor of a second type, wherein the first type and second type are complementary; and an intermodulation distortion (IMD) sink circuit having an operational amplifier (op amp) coupled between a first node and a second node, wherein the first transistor and second transistor are coupled in series between the first node and the second node.
摘要翻译：一种电路包括具有RF信号输入并且具有差分信号输出的有源平衡 - 不平衡变换器，所述有源平衡 - 不平衡变换器包括耦合到所述RF信号输入的第一对晶体管，所述第一对晶体管包括第一晶体管第一类型和第二类型的第二晶体管，其中第一类型和第二类型是互补的; 以及具有耦合在第一节点和第二节点之间的运算放大器（运算放大器）的互调失真（IMD）宿电路，其中第一晶体管和第二晶体管串联耦合在第一节点和第二节点之间。 >

2. 发明申请

WO1985004294A1 LINEAR AMPLIFIER CIRCUIT FOR DIRECT CURRENT AND ALTERNATING CURRENT 审中-公开
标题翻译：线性放大器电路，用于直流和交流电流
公开(公告)号：WO1985004294A1
公开(公告)日：1985-09-26
申请号：PCT/DE1985000077
申请日：1985-03-12
申请人： RIEDER, Joachim
IPC分类号： H03F03/30
CPC分类号： H03F3/3066 , H03F2203/30051 , H03F2203/30069 , H03F2203/45136 , H03F2203/45166
摘要： The principles of "linear amplifier circuits for direct current and alternating current" have been known for a long time and are partly derived from the valve techniques. The type which is most commonly used at present comprises a differential input and a final push-pull stage and operates with a counter-coupling. The final transistors operate usually as emitter-followers at the dynamic operation point A-B. This principle requires that the voltage amplifier reaches the voltage amplitude of the output voltage. In the new "linear amplifier circuit for direct current and alternating current", the final transistors (T3, T4) operate as a common emitter at the dynamic operation point B-C and the currents thereof are coupled. The voltage amplitude of the voltage amplifier (OP) has no importance since said voltage allows only the flow of a current to zero. Said current, however, flows from the positive or negative side in the voltage amplifier (OP) and simultaneously controls the final transistors (T3, T4). In case of a small signal or without the latter, the output voltage (U-aus) is generated by two pretransistors (T1, T2). These also operate as a common emitter and their currents are also coupled. The output voltage is obtained from the difference of the collector currents of the push-pull transistors (T1, T2, T3, T4). Said voltage is counter-coupled to the differential input amplifier (OP) and is thus adjusted at a fixed ratio to the input voltage. As the voltage amplitude is smaller at the output (U-aus) of the voltage amplifier (OP) than the input voltage, its open loop amplifier is exclusively used to compensate for the non-linearities of the amplifier. Even the output load has no influence on the output voltage. As the voltage amplitude of the voltage amplifier is only a few volts, the voltage amplifier may be a conventional operational amplifier which is commercially available, even in the case where the output voltage of the final stage is high. Due to the dynamic operation point B-C of the final transistors (T3, T4), the ratio between the output power and the dissipated power is very advantageous, of the order of 3/1. This new principle enables the construction of better linear amplifiers with a reduced number of component parts.

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