公开(公告)号：US09813036B2

公开(公告)日：2017-11-07

申请号：US13714600

申请日：2012-12-14

Applicant: RF Micro Devices, Inc.

Inventor： Andrew F. Folkmann ,  Ramon Antonio Beltran Lizarraga

IPC: H03G3/20 ,  H03F3/189 ,  H03F3/68 ,  H03F1/02 ,  H03F3/72 ,  H03G3/30

CPC classification number: H03G3/20 ,  H03F1/0288 ,  H03F3/189 ,  H03F3/68 ,  H03F3/72 ,  H03G3/3042

Abstract: Radio frequency (RF) amplification devices and methods of amplifying RF signals are disclosed. In one embodiment, an RF amplification device includes a control circuit and a Doherty amplifier configured to amplify an RF signal. The Doherty amplifier includes a main RF amplification circuit and a peaking RF amplification circuit. The control circuit is configured to activate the peaking RF amplification circuit in response to the RF signal reaching a threshold level. In this manner, the activation of the peaking RF amplification circuit can be precisely controlled.

公开(公告)号：US20130154729A1

公开(公告)日：2013-06-20

申请号：US13714600

申请日：2012-12-14

Applicant: RF Micro Devices, Inc.

Inventor： Andrew F. Folkmann ,  Ramon Antonio Beltran Lizarraga

IPC: H03G3/20 ,  H03F3/189 ,  H03F3/68

CPC classification number: H03G3/20 ,  H03F1/0288 ,  H03F3/189 ,  H03F3/68 ,  H03F3/72 ,  H03G3/3042

Abstract: Radio frequency (RF) amplification devices and methods of amplifying RF signals are disclosed. In one embodiment, an RF amplification device includes a control circuit and a Doherty amplifier configured to amplify an RF signal. The Doherty amplifier includes a main RF amplification circuit and a peaking RF amplification circuit. The control circuit is configured to activate the peaking RF amplification circuit in response to the RF signal reaching a threshold level. In this manner, the activation of the peaking RF amplification circuit can be precisely controlled.

Abstract translation: 公开了射频（RF）放大装置和放大RF信号的方法。 在一个实施例中，RF放大装置包括配置成放大RF信号的控制电路和Doherty放大器。 Doherty放大器包括主RF放大电路和峰值RF放大电路。 控制电路被配置为响应于RF信号达到阈值水平激活峰值RF放大电路。 以这种方式，可以精确地控制峰值RF放大电路的激活。