公开(公告)号：WO1995019066A1

公开(公告)日：1995-07-13

申请号：PCT/US1995000445

申请日：1995-01-11

Applicant: ERICSSON GE MOBILE COMMUNICATIONS INC.

Inventor： ERICSSON GE MOBILE COMMUNICATIONS INC. ,  DENT, Paul, W. ,  LAMPE, Ross, W.

IPC: H03F03/68

CPC classification number: H04B1/1607 ,  H03F1/0294 ,  H03F1/3229 ,  H03F1/3252 ,  H03F1/34 ,  H03F3/24 ,  H03F3/602 ,  H04B1/04 ,  H04B1/0483 ,  H04B1/52 ,  H04B2001/0433

Abstract: An amplifying apparatus for linearly amplifying a desired signal using a pair of coupled non-linear amplifiers (57) is disclosed. The amplifying apparatus comprises a limiter (21) for separating amplitude variations from the desired signal and producing a constant amplitude signal bearing the phase of the desired signal and an amplitude related signal. In addition, a drive signal generator (62) produces two drive signals each dependent on the constant amplitude signal and the amplitude related signal such that each drive signal depends on the phase of the desired signal and such that the sum of the squares of the amplitudes of the drive signals is constant. Finally, a coupler (56) couples the two drive signals to produce two constant amplitude signals for driving the pair of non-linear power amplifiers (57) and for coupling the outputs of the power amplifiers (57) to produce two amplified output signals, one of which is the linearly amplified desired signal and the other of which is a waste energy signal.

Abstract translation: 公开了一种用于使用一对耦合的非线性放大器（57）线性放大期望信号的放大装置。 该放大装置包括限幅器（21），用于将振幅变化与期望信号分离，并产生一个恒定振幅信号，该信号承载期望信号的相位和振幅相关信号。 此外，驱动信号发生器（62）产生两个驱动信号，每个驱动信号依赖于恒定幅度信号和振幅相关信号，使得每个驱动信号取决于期望信号的相位，并且使得幅度的平方和 的驱动信号是恒定的。 最后，耦合器（56）将两个驱动信号耦合以产生用于驱动一对非线性功率放大器（57）的两个恒定幅度信号，并耦合功率放大器（57）的输出以产生两个放大的输出信号， 其中之一是线性放大的期望信号，另一个是废能信号。