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公开(公告)号：US12191826B2
公开(公告)日：2025-01-07
申请号：US17448663
申请日：2021-09-23
Applicant: Skyworks Solutions, Inc.
Inventor： William J. Domino , Craig Joseph Christmas , Joseph Anton Pusl, III , René Rodríguez
Abstract: A method of adjusting an impedance of a power amplifier of a radio frequency system for matching with an antenna switch die is disclosed. In one aspect, the method includes connecting the power amplifier to the antenna switch die via an impedance adjustment circuit, the impedance adjustment circuit including an input node, an output node, a plurality of electrical components arranged between the input node and the output node, and at least one switch configured to selectively electrically connect at least one of the electrical components to the input node and the output node. The method further includes determining an Error Vector Magnitude of the radio frequency system for each of a plurality of states of the at least one switch, and controlling the at least one switch to enter the state of the plurality of states that minimizes the Error Vector Magnitude of the radio frequency system.
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公开(公告)号：US10447335B2
公开(公告)日：2019-10-15
申请号：US15915308
申请日：2018-03-08
Applicant: Skyworks Solutions, Inc.
Inventor： Joseph Anton Pusl, III , Craig Joseph Christmas
Abstract: A front end module having transmit loopback functionality may be operated by conducting a loopback signal from an output of a power amplifier to a receive port on a transmit loopback path and conducting a radio frequency receive signal from an antenna port to the receive port on a receive path. The transmit loopback path includes a first switch coupled between the output of the power amplifier and the receive port. The receive path includes a second switch coupled between the antenna port, where the receive port and is without the first switch.
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公开(公告)号：US20170195972A1
公开(公告)日：2017-07-06
申请号：US15392186
申请日：2016-12-28
Applicant: SKYWORKS SOLUTIONS, INC.
Inventor： Serge Francois Drogi , Florinel G. Balteanu , Luigi Panseri , Craig Joseph Christmas , Paul T. DiCarlo
CPC classification number: H03F1/0227 , H03F1/565 , H03F3/191 , H03F3/217 , H03F3/245 , H03F2200/102 , H03F2200/331 , H03F2200/336 , H03F2200/451
Abstract: Embodiments described herein relate to an envelope tracking system that uses a single-bit digital signal to encode an analog envelope tracking control signal, or envelope tracking signal for brevity. In certain embodiments, the envelope tracking system can estimate or measure the amplitude of the baseband signal. The envelope tracking system can further estimate the amplitude of the envelope of the RF signal. The system can convert the amplitude of the envelope signal to a single-bit digital signal, typically at a higher, oversample rate. The single-bit digital signal can be transmitted in, for example, a low-voltage differential signaling (LVDS) format, from a transceiver to an envelope tracker. An analog-to-digital converter (ADC or A/D) can convert the single-bit digital signal back to an analog envelope signal. Moreover, a driver can increase the power of the A/D output envelope signal to produce an envelope-tracking supply voltage for a power amplifier.
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公开(公告)号：US20210167733A1
公开(公告)日：2021-06-03
申请号：US17095581
申请日：2020-11-11
Applicant: SKYWORKS SOLUTIONS, INC.
Inventor： Serge Francois Drogi , Florinel G. Balteanu , Luigi Panseri , Craig Joseph Christmas , Paul T. DiCarlo
Abstract: Embodiments described herein relate to an envelope tracking system that uses a single-bit digital signal to encode an analog envelope tracking control signal, or envelope tracking signal for brevity. In certain embodiments, the envelope tracking system can estimate or measure the amplitude of the baseband signal. The envelope tracking system can further estimate the amplitude of the envelope of the RF signal. The system can convert the amplitude of the envelope signal to a single-bit digital signal, typically at a higher, oversample rate. The single-bit digital signal can be transmitted in, for example, a low-voltage differential signaling (LVDS) format, from a transceiver to an envelope tracker. An analog-to-digital converter (ADC or A/D) can convert the single-bit digital signal back to an analog envelope signal. Moreover, a driver can increase the power of the A/D output envelope signal to produce an envelope-tracking supply voltage for a power amplifier.
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公开(公告)号：US10862430B2
公开(公告)日：2020-12-08
申请号：US16380757
申请日：2019-04-10
Applicant: Skyworks Solutions, Inc.
Inventor： Serge Francois Drogi , Florinel G. Balteanu , Luigi Panseri , Craig Joseph Christmas , Paul T. DiCarlo
Abstract: Embodiments described herein relate to an envelope tracking system that uses a single-bit digital signal to encode an analog envelope tracking control signal, or envelope tracking signal for brevity. In certain embodiments, the envelope tracking system can estimate or measure the amplitude of the baseband signal. The envelope tracking system can further estimate the amplitude of the envelope of the RF signal. The system can convert the amplitude of the envelope signal to a single-bit digital signal, typically at a higher, oversample rate. The single-bit digital signal can be transmitted in, for example, a low-voltage differential signaling (LVDS) format, from a transceiver to an envelope tracker. An analog-to-digital converter (ADC or A/D) can convert the single-bit digital signal back to an analog envelope signal. Moreover, a driver can increase the power of the A/D output envelope signal to produce an envelope-tracking supply voltage for a power amplifier.
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Patent Agency Ranking
公开(公告)号：US20200076468A1
公开(公告)日：2020-03-05
申请号：US16565826
申请日：2019-09-10
Applicant: Skyworks Solutions, Inc.
Inventor： Joseph Anton Pusl, III , Craig Joseph Christmas
Abstract: A front end module having transmit loopback functionality may be operated by conducting a loopback signal from an output of a power amplifier to a receive port on a transmit loopback path and conducting a radio frequency receive signal from an antenna port to the receive port on a receive path. The transmit loopback path includes a first switch coupled between the output of the power amplifier and the receive port. The receive path includes a second switch coupled between the antenna port, where the receive port and is without the first switch.
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公开(公告)号：US10270394B2
公开(公告)日：2019-04-23
申请号：US15392186
申请日：2016-12-28
Applicant: SKYWORKS SOLUTIONS, INC.
Inventor： Serge Francois Drogi , Florinel G. Balteanu , Luigi Panseri , Craig Joseph Christmas , Paul T. DiCarlo
Abstract: Embodiments described herein relate to an envelope tracking system that uses a single-bit digital signal to encode an analog envelope tracking control signal, or envelope tracking signal for brevity. In certain embodiments, the envelope tracking system can estimate or measure the amplitude of the baseband signal. The envelope tracking system can further estimate the amplitude of the envelope of the RF signal. The system can convert the amplitude of the envelope signal to a single-bit digital signal, typically at a higher, oversample rate. The single-bit digital signal can be transmitted in, for example, a low-voltage differential signaling (LVDS) format, from a transceiver to an envelope tracker. An analog-to-digital converter (ADC or A/D) can convert the single-bit digital signal back to an analog envelope signal. Moreover, a driver can increase the power of the A/D output envelope signal to produce an envelope-tracking supply voltage for a power amplifier.
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公开(公告)号：US20180262231A1
公开(公告)日：2018-09-13
申请号：US15915308
申请日：2018-03-08
Applicant: Skyworks Solutions, Inc.
Inventor： Joseph Anton Pusl, III , Craig Joseph Christmas
CPC classification number: H04B1/48 , H04B1/04 , H04B1/40 , H04B1/525 , H04B2001/0425
Abstract: A front end module having transmit loopback functionality may be operated by conducting a loopback signal from an output of a power amplifier to a receive port on a transmit loopback path and conducting a radio frequency receive signal from an antenna port to the receive port on a receive path. The transmit loopback path includes a first switch coupled between the output of the power amplifier and the receive port. The receive path includes a second switch coupled between the antenna port, where the receive port and is without the first switch.
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公开(公告)号：US20150009980A1
公开(公告)日：2015-01-08
申请号：US14493928
申请日：2014-09-23
Applicant: Skyworks Solutions, Inc.
Inventor： Hardik Bhupendra Modi , Craig Joseph Christmas , Xuanang Zhu , Mark M. Doherty
IPC: H03G3/30
CPC classification number: H03G3/3042 , H03F1/0222 , H03F1/565 , H03F3/19 , H03F3/245 , H03F2200/102 , H03F2200/105 , H03F2200/108 , H03F2200/387 , H04B1/0458
Abstract: Apparatus and methods for wide local area network (WLAN) power amplifiers are provided. In certain configurations, a WLAN power amplifier system includes a WLAN power amplifier, an output impedance matching network, and an envelope tracker. The WLAN power amplifier includes an input that receives a WLAN signal having a fundamental frequency and an output that generates an amplified WLAN signal for transmission over an antenna. The output impedance matching network is electrically connected to the output of the WLAN power amplifier, and can provide a load line impedance between 10Ω and 35Ω at the fundamental frequency. The envelope tracker receives an envelope of the WLAN signal, and controls a voltage level of a power supply of the WLAN power amplifier based on the envelope signal.
Abstract translation: 提供了宽局域网（WLAN）功率放大器的装置和方法。 在某些配置中，WLAN功率放大器系统包括WLAN功率放大器，输出阻抗匹配网络和包络跟踪器。 WLAN功率放大器包括接收具有基频的WLAN信号的输入和产生用于通过天线传输的放大的WLAN信号的输出。 输出阻抗匹配网络电连接到WLAN功率放大器的输出，并可以提供10Ω和OHgr之间的负载线路阻抗; 和35＆OHgr; 在基本频率。 信封跟踪器接收WLAN信号的包络，并且基于包络信号来控制WLAN功率放大器的电源的电压电平。
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公开(公告)号：US11469714B2
公开(公告)日：2022-10-11
申请号：US17095581
申请日：2020-11-11
Applicant: SKYWORKS SOLUTIONS, INC.
Inventor： Serge Francois Drogi , Florinel G. Balteanu , Luigi Panseri , Craig Joseph Christmas , Paul T. DiCarlo
Abstract: Embodiments described herein relate to an envelope tracking system that uses a single-bit digital signal to encode an analog envelope tracking control signal, or envelope tracking signal for brevity. In certain embodiments, the envelope tracking system can estimate or measure the amplitude of the baseband signal. The envelope tracking system can further estimate the amplitude of the envelope of the RF signal. The system can convert the amplitude of the envelope signal to a single-bit digital signal, typically at a higher, oversample rate. The single-bit digital signal can be transmitted in, for example, a low-voltage differential signaling (LVDS) format, from a transceiver to an envelope tracker. An analog-to-digital converter (ADC or A/D) can convert the single-bit digital signal back to an analog envelope signal. Moreover, a driver can increase the power of the A/D output envelope signal to produce an envelope-tracking supply voltage for a power amplifier.
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