公开(公告)号：US09300260B2

公开(公告)日：2016-03-29

申请号：US14215774

申请日：2014-03-17

Applicant: RF Micro Devices, Inc.

Inventor： George Maxim ,  Baker Scott ,  Ming Tsai ,  Alireza Shirvani

IPC: H03F1/32 ,  H03F3/193 ,  H03F1/14 ,  H03F1/34 ,  H03F1/56 ,  H03F3/195 ,  H01L23/66 ,  H01L23/498 ,  H01L23/00

CPC classification number: H03F3/193 ,  H01L23/49822 ,  H01L23/49827 ,  H01L23/66 ,  H01L24/16 ,  H01L2223/6644 ,  H01L2224/16225 ,  H03F1/14 ,  H03F1/347 ,  H03F1/565 ,  H03F3/195 ,  H03F2200/451

Abstract: This disclosure relates generally to radio frequency (RF) amplification devices and methods of operating the same. In one embodiment, an RF amplification device includes an RF amplification circuit and a stabilizing transformer network. The RF amplification circuit defines an RF signal path and is configured to amplify an RF signal propagating in the RF signal path. The stabilizing transformer network is operably associated with the RF signal path defined by the RF amplification circuit. Furthermore, the stabilizing transformer network is configured to reduce parasitic coupling along the RF signal path of the RF amplification circuit as the RF signal propagates in the RF signal path. In this manner, the stabilizing transformer network allows for inexpensive components to be used to reduce parasitic coupling while allowing for smaller distances along the RF signal path.

Abstract translation: 本公开一般涉及射频（RF）放大装置及其操作方法。 在一个实施例中，RF放大装置包括RF放大电路和稳定变压器网络。 RF放大电路定义RF信号路径并且被配置为放大在RF信号路径中传播的RF信号。 稳定变压器网络与由RF放大电路限定的RF信号路径可操作地相关联。 此外，稳定变压器网络被配置为当RF信号在RF信号路径中传播时减小沿着RF放大电路的RF信号路径的寄生耦合。 以这种方式，稳定变压器网络允许使用便宜的部件来减少寄生耦合，同时允许沿着RF信号路径的较小的距离。

公开(公告)号：US20150155831A1

公开(公告)日：2015-06-04

申请号：US14557897

申请日：2014-12-02

Applicant: RF Micro Devices, Inc.

Inventor： Alireza Shirvani

IPC: H03F1/02 ,  H03F3/193

CPC classification number: H03F1/0211 ,  H03F1/0261 ,  H03F1/22 ,  H03F1/223 ,  H03F3/193 ,  H03F3/211 ,  H03F2200/222 ,  H03F2200/294 ,  H03F2200/387 ,  H03F2200/451 ,  H03F2200/61

Abstract: Embodiments of a radio frequency (RF) amplification are disclosed. The RF amplification device includes a first RF amplification circuit, a second RF amplification circuit, and power control circuitry operable in a first power mode and a second power mode. The first RF amplification circuit has a cascode amplifier stage configured to amplify an RF signal. The cascode amplifier stage has an input transistor and a cascode output transistor that are stacked in cascode. The second RF amplification circuit is configured to amplify the RF signal. The power control circuitry is configured to bias the first cascode output transistor so that the first cascode output transistor operates in a saturation region in the first power mode and bias the first cascode output transistor so that the first cascode output transistor operates in a triode region in the second power mode. The second RF amplification circuit is assisted without introducing additional loading.

Abstract translation: 公开了射频（RF）放大的实施例。 RF放大装置包括第一RF放大电路，第二RF放大电路和可在第一功率模式和第二功率模式下操作的功率控制电路。 第一RF放大电路具有被配置为放大RF信号的共源共栅放大器级。 共源共栅放大器级具有以共源共栅堆叠的输入晶体管和共源共栅输出晶体管。 第二RF放大电路被配置为放大RF信号。 功率控制电路被配置为偏置第一共源共栅输出晶体管，使得第一共源共栅输出晶体管在第一功率模式中的饱和区域中工作，并且偏置第一共源共栅输出晶体管，使得第一共源共栅输出晶体管在三极管区域中工作 第二个电源模式。 在不引入额外负载的情况下辅助第二RF放大电路。

公开(公告)号：US20140266470A1

公开(公告)日：2014-09-18

申请号：US14215774

申请日：2014-03-17

Applicant: RF Micro Devices, Inc.

Inventor： George Maxim ,  Baker Scott ,  Ming Tsai ,  Alireza Shirvani

IPC: H03F3/193

CPC classification number: H03F3/193 ,  H01L23/49822 ,  H01L23/49827 ,  H01L23/66 ,  H01L24/16 ,  H01L2223/6644 ,  H01L2224/16225 ,  H03F1/14 ,  H03F1/347 ,  H03F1/565 ,  H03F3/195 ,  H03F2200/451

Abstract: This disclosure relates generally to radio frequency (RF) amplification devices and methods of operating the same. In one embodiment, an RF amplification device includes an RF amplification circuit and a stabilizing transformer network. The RF amplification circuit defines an RF signal path and is configured to amplify an RF signal propagating in the RF signal path. The stabilizing transformer network is operably associated with the RF signal path defined by the RF amplification circuit. Furthermore, the stabilizing transformer network is configured to reduce parasitic coupling along the RF signal path of the RF amplification circuit as the RF signal propagates in the RF signal path. In this manner, the stabilizing transformer network allows for inexpensive components to be used to reduce parasitic coupling while allowing for smaller distances along the RF signal path.

Abstract translation: 本公开一般涉及射频（RF）放大装置及其操作方法。 在一个实施例中，RF放大装置包括RF放大电路和稳定变压器网络。 RF放大电路定义RF信号路径并且被配置为放大在RF信号路径中传播的RF信号。 稳定变压器网络与由RF放大电路限定的RF信号路径可操作地相关联。 此外，稳定变压器网络被配置为当RF信号在RF信号路径中传播时减小沿着RF放大电路的RF信号路径的寄生耦合。 以这种方式，稳定变压器网络允许使用便宜的部件来减少寄生耦合，同时允许沿着RF信号路径的较小的距离。