公开(公告)号：US6052039A

公开(公告)日：2000-04-18

申请号：US896979

申请日：1997-07-18

Applicant: Hwann-Kaeo Chiou ,  Hao-Hsiung Lin

Inventor： Hwann-Kaeo Chiou ,  Hao-Hsiung Lin

IPC: H03H7/01 ,  H03H7/42 ,  H03H7/48

CPC classification number: H03H7/42 ,  H03H7/0115

Abstract: The invention proposes a lumped constant compensated high/pass balun (balance line to unbalance line transition). The proposed circuit can be used in microwave integrated circuit(MIC) and mononolithic microwave integrated circuit(MMIC) designs. The basic operating principle of the proposed circuit is to use two sets of lumped type high pass and low pass filters to synthesize a microwave balun. The first filter set provides the wide band 180.degree. phase difference property for the balun circuit. The amplitude imbalance of the balun is compensated by the other filter set. The advantage of the proposed circuit is to replace the bulky and non-planar distributed balun or traditional transformer in low microwave frequency range.

Abstract translation: 本发明提出了一种集总常数补偿的高/中压平衡 - 不平衡变压器（平衡线以不平衡线路转换）。 所提出的电路可用于微波集成电路（MIC）和单片微波集成电路（MMIC）设计。 所提出的电路的基本工作原理是使用两组集中式高通和低通滤波器来合成微波平衡 - 不平衡变压器。 第一个滤波器组为平衡 - 不平衡变换器提供宽带180°相位差特性。 平衡 - 不平衡变换器的幅度不平衡由另一个滤波器组补偿。 所提出的电路的优点是在低微波频率范围内代替大体积和非平面分布式平衡 - 不平衡变压器或传统变压器。

公开(公告)号：US20170070193A1

公开(公告)日：2017-03-09

申请号：US14948380

申请日：2015-11-22

Applicant: Ying-Zong Juang ,  Hann-Huei Tsai ,  Po-Chang Wu ,  Kuei-Cheng Lin ,  Chih-Yuan Yeh ,  Hwann-Kaeo Chiou

Inventor： Ying-Zong Juang ,  Hann-Huei Tsai ,  Po-Chang Wu ,  Kuei-Cheng Lin ,  Chih-Yuan Yeh ,  Hwann-Kaeo Chiou

IPC: H03F1/02 ,  H03F3/193 ,  H03F3/21 ,  H03F1/32

CPC classification number: H03F3/211 ,  H03F1/0261 ,  H03F1/3205 ,  H03F3/193 ,  H03F2200/432 ,  H03F2200/451 ,  H03F2201/3215 ,  H03F2203/21106

Abstract: The invention provides an RF power amplifier with post-distortion linearizer. The power amplifier includes a main amplifier, an auxiliary amplifier and a phase compensator. The first amplifier has a first input end and a first output end and operates in class A or AB. The auxiliary amplifier has a second input end and a second output end and operates in class B or C. The second output end connects the first output end to form a signal output end. The phase compensator has a third input end and a third output end and compensates a phase difference between the main and auxiliary amplifiers to make outputs of the two amplifiers opposite in phase. The third output end connects the second input end. The third input end connects the first input end to form a signal input end.

Abstract translation: 本发明提供一种具有后失真线性化的RF功率放大器。 功率放大器包括主放大器，辅助放大器和相位补偿器。 第一放大器具有第一输入端和第一输出端，​​并且在A或AB类中工作。 辅助放大器具有第二输入端和第二输出端，并且在B或C类中工作。第二输出端连接第一输出端以形成信号输出端。 相位补偿器具有第三输入端和第三输出端，并补偿主放大器和辅助放大器之间的相位差，使两个放大器的输出相位相反。 第三输出端连接第二输入端。 第三输入端连接第一输入端以形成信号输入端。