公开(公告)号：US09077405B2

公开(公告)日：2015-07-07

申请号：US13845410

申请日：2013-03-18

Applicant: RF Micro Devices, Inc.

Inventor： David E. Jones ,  Wayne D. Tattershall

IPC: H01Q11/12 ,  H04B1/04 ,  H03F1/02 ,  H03F3/195 ,  H03F3/21 ,  H03F3/24 ,  H03F3/60 ,  H03F3/72

CPC classification number: H04B1/0458 ,  H03F1/0227 ,  H03F1/0261 ,  H03F1/0277 ,  H03F3/195 ,  H03F3/211 ,  H03F3/245 ,  H03F3/602 ,  H03F3/72 ,  H03F2200/171 ,  H03F2200/222 ,  H03F2200/27 ,  H03F2200/318 ,  H03F2200/336 ,  H03F2200/387 ,  H03F2200/411 ,  H03F2200/414 ,  H03F2200/417 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/21106 ,  H03F2203/21142 ,  H03F2203/21157

Abstract: A first transmit path, a second transmit path, and a third transmit path are disclosed. The first transmit path includes a first radio frequency (RF) power amplifier (PA) and alpha switching circuitry, which is coupled to an output from the first RF PA. The second transmit path includes a second RF PA and beta switching circuitry, which is coupled to an output from the second RF PA. The third transmit path includes a third RF PA.

Abstract translation: 公开了第一发送路径，第二发送路径和第三发送路径。 第一发射路径包括第一射频（RF）功率放大器（PA）和α切换电路，其耦合到来自第一RF PA的输出。 第二发射路径包括第二RF PA和β切换电路，其耦合到来自第二RF PA的输出。 第三发射路径包括第三RF PA。

公开(公告)号：US20130099858A1

公开(公告)日：2013-04-25

申请号：US13657300

申请日：2012-10-22

Applicant: RF MICRO DEVICES, INC.

Inventor： Wayne D. Tattershall ,  David E. Jones

IPC: H03F1/02 ,  H03F3/68 ,  H03F3/45

CPC classification number: H03F1/0277 ,  H03F3/211 ,  H03F3/245 ,  H03F2200/414 ,  H03F2200/541

Abstract: This application reduces the power of series combined transformers and of parallel combined transformers while maintaining efficiency. In one embodiment, a series combined transformer is provided with a switch between a first primary inductor and a second primary inductor, in order to provide at least two modes. In a high power mode, the switch is open and the series combined transformer operates normally. In a low power mode, the switch is closed, one amplifier from a first differential amplifier pair is shut down, one amplifier from a second differential pair is shut down, and the series combined transformer operates efficiently in a low power mode.

Abstract translation: 该应用降低了串联组合变压器和并联组合变压器的功率，同时保持了效率。 在一个实施例中，串联组合变压器在第一初级电感器和第二初级电感器之间设置有开关，以提供至少两种模式。 在高功率模式下，开关断开，串联组合变压器正常工作。 在低功耗模式下，开关闭合，来自第一差分放大器对的一个放大器关闭，来自第二差分对的一个放大器关闭，并且串联组合变压器以低功率模式有效地工作。

公开(公告)号：US08786372B2

公开(公告)日：2014-07-22

申请号：US13657300

申请日：2012-10-22

Applicant: RF Micro Devices, Inc.

Inventor： Wayne D. Tattershall ,  David E. Jones

IPC: H03F3/04

CPC classification number: H03F1/0277 ,  H03F3/211 ,  H03F3/245 ,  H03F2200/414 ,  H03F2200/541

Abstract: This application reduces the power of series combined transformers and of parallel combined transformers while maintaining efficiency. In one embodiment, a series combined transformer is provided with a switch between a first primary inductor and a second primary inductor, in order to provide at least two modes. In a high power mode, the switch is open and the series combined transformer operates normally. In a low power mode, the switch is closed, one amplifier from a first differential amplifier pair is shut down, one amplifier from a second differential pair is shut down, and the series combined transformer operates efficiently in a low power mode.

Abstract translation: 该应用降低了串联组合变压器和并联组合变压器的功率，同时保持了效率。 在一个实施例中，串联组合变压器在第一初级电感器和第二初级电感器之间设置有开关，以提供至少两种模式。 在高功率模式下，开关断开，串联组合变压器正常工作。 在低功耗模式下，开关闭合，来自第一差分放大器对的一个放大器关闭，来自第二差分对的一个放大器关闭，并且串联组合变压器以低功率模式有效地工作。

公开(公告)号：US20130217341A1

公开(公告)日：2013-08-22

申请号：US13845410

申请日：2013-03-18

Applicant: RF MICRO DEVICES, INC.

Inventor： David E. Jones ,  Wayne D. Tattershall

IPC: H04B1/04

CPC classification number: H04B1/0458 ,  H03F1/0227 ,  H03F1/0261 ,  H03F1/0277 ,  H03F3/195 ,  H03F3/211 ,  H03F3/245 ,  H03F3/602 ,  H03F3/72 ,  H03F2200/171 ,  H03F2200/222 ,  H03F2200/27 ,  H03F2200/318 ,  H03F2200/336 ,  H03F2200/387 ,  H03F2200/411 ,  H03F2200/414 ,  H03F2200/417 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/21106 ,  H03F2203/21142 ,  H03F2203/21157

Abstract: A first transmit path, a second transmit path, and a third transmit path are disclosed. The first transmit path includes a first radio frequency (RF) power amplifier (PA) and alpha switching circuitry, which is coupled to an output from the first RF PA. The second transmit path includes a second RF PA and beta switching circuitry, which is coupled to an output from the second RF PA. The third transmit path includes a third RF PA.

Abstract translation: 公开了第一发送路径，第二发送路径和第三发送路径。 第一发射路径包括第一射频（RF）功率放大器（PA）和α切换电路，其耦合到来自第一RF PA的输出。 第二发射路径包括第二RF PA和β切换电路，其耦合到来自第二RF PA的输出。 第三发射路径包括第三RF PA。