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公开(公告)号：US20240048109A1
公开(公告)日：2024-02-08
申请号：US17817814
申请日：2022-08-05
申请人： Semtech Corporation
CPC分类号： H03F3/55 , H03F3/45475 , H03F1/56 , H03F2200/423 , H03F2200/255
摘要： Amplifier circuitry is disclosed for receiving a differential signal and outputting a single-ended output signal. A travelling wave amplifier has a plurality of amplifier elements connected between an input transmission line and an output transmission line, each extending between first and second sides of the travelling wave amplifier. The input transmission line is configured to receive the first differential signal component at the first side and the output transmission line is configured to provide the single-ended output signal at the second side. A matched transmission line, which is configured to match at least some transmission properties of the input transmission line, receive the second differential signal component at the first end. A differential termination network is connected to both the input transmission line and matched and the matched transmission line and is configured to provide differential termination of signals received at the first and second termination inputs.
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公开(公告)号：US20230370029A1
公开(公告)日：2023-11-16
申请号：US18359718
申请日：2023-07-26
发明人： William Roeckner , Terrie McCain , Matthew Miller
CPC分类号： H03F3/245 , H03F1/56 , H03G3/3036 , H03F2200/294 , H03F2200/451 , H03F2200/255 , H03G2201/103 , H03G2201/307
摘要： Methods, systems, and apparatus, including computer programs encoded on computer storage media, for a programmable input impedance circuit for a radio frequency (RF) low noise amplifier (LNA) including a high impedance mode circuit and a low impedance mode circuit. The high impedance mode circuit includes an inductor-degenerated transconductor transistor, an inductor selectively coupled between a source of the inductor-degenerated transconductor transistor and a ground, and a capacitor coupled between a gate of the inductor-degenerated transconductor transistor and the source of the inductor-degenerated transconductor transistor. The low impedance mode circuit includes a shunt resistor selectively coupled between an RF input source and an alternating current (AC) ground.
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公开(公告)号：US20190214946A1
公开(公告)日：2019-07-11
申请号：US16249219
申请日：2019-01-16
发明人： Andy Cheng Pang Wu , Younkyu Chung
CPC分类号： H03F1/0216 , H01L24/00 , H03F1/0261 , H03F1/0277 , H03F3/195 , H03F3/245 , H03F3/72 , H03F2200/255 , H03F2200/318 , H03F2200/336 , H03F2200/411 , H03F2200/421 , H03F2200/423 , H03F2200/451 , H03F2200/555 , H03F2203/7233 , H03F2203/7236
摘要： Apparatus and methods for multi-mode power amplifiers are provided herein. In certain configurations, a wireless device includes a multi-mode power amplifier including a plurality of amplification paths electrically connected in parallel with one another. The plurality of amplification paths includes a first amplification path including an input stage of a first stage type and an output stage of a second stage type, and a second amplification path including an output stage of the second stage type. The first stage type provides non-inverting gain and the second stage type provides inverting gain. The wireless device further includes a transceiver that provides a radio frequency signal to the multi-mode power amplifier, and that operates the multi-mode power amplifier in a selected power mode chosen from a plurality of power modes based on selectively activating one or more of the plurality of amplification paths.
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公开(公告)号：US20190068123A1
公开(公告)日：2019-02-28
申请号：US16032252
申请日：2018-07-11
申请人： Qorvo US, Inc.
发明人： Ankush Mohan , Soack Yoon , Dan Denninghoff
CPC分类号： H03F1/0205 , H01P3/08 , H01P5/19 , H01Q13/085 , H03F3/195 , H03F3/213 , H03F2200/255 , H03F2200/315 , H03F2200/423
摘要： Antenna waveguide transitions for solid state power amplifiers (SSPAs) are disclosed. An SSPA includes a waveguide channel that is configured to propagate an input signal, such as an electromagnetic signal, from an input port to a solid state amplifier for amplification. The waveguide channel is further configured to propagate an amplified signal from the solid state amplifier to an output port. Waveguide transitions to and from the solid state amplifier are bandwidth matched to the waveguide channel. Additionally, the waveguide transitions may be thermally coupled to the waveguide channel. The waveguide transitions may include antenna structures that have a signal conductor and a ground conductor. In this manner, the SSPA may have improved broadband coupling as well as improved thermal dissipation for heat generated by the solid state amplifier.
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公开(公告)号：US20180145043A1
公开(公告)日：2018-05-24
申请号：US15355498
申请日：2016-11-18
发明人： Michael Simcoe
IPC分类号： H01L23/66 , H01L23/498 , H01L23/538 , H03H7/38 , H03F3/19 , H03F1/02 , H01L21/48 , H03F3/21 , H01L25/07 , H01L25/00 , H01P3/08 , H01L21/66
CPC分类号： H01L23/66 , H01L21/4846 , H01L22/12 , H01L22/14 , H01L22/20 , H01L23/48 , H01L23/49822 , H01L23/49838 , H01L23/49866 , H01L23/5389 , H01L24/80 , H01L25/072 , H01L25/50 , H01L2223/6627 , H01L2223/6655 , H01L2223/6661 , H01P3/081 , H01P5/028 , H03F1/0288 , H03F3/19 , H03F3/211 , H03F3/60 , H03F2200/222 , H03F2200/255 , H03F2200/387 , H03F2200/423 , H03F2200/451 , H03F2203/21103 , H03F2203/21139 , H03H7/38
摘要： An RF power package includes a substrate having a metallized part and an insulating part, an RF power transistor die embedded in or attached to the substrate, the RF power transistor die having a die input terminal, a die output terminal, an input impedance and an output impedance, a package input terminal formed in the metallized part or attached to the insulating part of the substrate, a package output terminal formed in the metallized part or attached to the insulating part of the substrate, and a first plurality of planar tuning lines formed in the metallized part of the substrate and electrically connecting the die output terminal to the package output terminal. The first plurality of planar tuning lines is shaped so as to transform the output impedance at the die output terminal to a higher target level at the package output terminal.
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公开(公告)号：US20180123518A1
公开(公告)日：2018-05-03
申请号：US15784800
申请日：2017-10-16
发明人： Andy Cheng Pang Wu , Younkyu Chung
CPC分类号： H03F1/0216 , H03F1/0261 , H03F1/0277 , H03F3/195 , H03F3/245 , H03F3/72 , H03F2200/255 , H03F2200/318 , H03F2200/336 , H03F2200/411 , H03F2200/421 , H03F2200/423 , H03F2200/451 , H03F2200/555 , H03F2203/7233 , H03F2203/7236
摘要： Apparatus and methods for multi-mode power amplifiers are provided herein. In certain configurations, a wireless device includes a multi-mode power amplifier including a plurality of amplification paths electrically connected in parallel with one another. The plurality of amplification paths includes a first amplification path including an input stage of a first stage type and an output stage of a second stage type, and a second amplification path including an output stage of the second stage type. The first stage type provides non-inverting gain and the second stage type provides inverting gain. The wireless device further includes a transceiver that provides a radio frequency signal to the multi-mode power amplifier, and that operates the multi-mode power amplifier in a selected power mode chosen from a plurality of power modes based on selectively activating one or more of the plurality of amplification paths.
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公开(公告)号：US09882535B2
公开(公告)日：2018-01-30
申请号：US15195575
申请日：2016-06-28
发明人： Haedong Jang , Richard Wilson , Timothy Canning , David Seebacher
CPC分类号： H03F1/0288 , H03F1/0294 , H03F1/56 , H03F3/193 , H03F3/245 , H03F3/604 , H03F2200/255 , H03F2200/423 , H03F2200/451
摘要： An amplifier that is configured to amplify an RF signal includes a power combiner circuit. The power combiner circuit includes a first branch connected between a first RF input port and a summing node and a second branch connected between a second RF input port and the summing node. Each of the first and second branches includes an impedance inverter. The Chireix combiner is configured to present a Chireix load modulated impedance response to the first and second RF input ports. The power combiner circuit further includes compensation elements being configured to at least partially compensate for a reactance of the Chireix combiner circuit in a Doherty amplifier mode in which a signal is applied to the first RF input port and the second RF input port is electrically open.
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公开(公告)号：US09831837B2
公开(公告)日：2017-11-28
申请号：US14533988
申请日：2014-11-05
发明人： Joonhoi Hur , Paul Joseph Draxler
IPC分类号： H03F3/60 , H03F1/56 , H03F3/24 , H01Q1/50 , H03F3/68 , H03F1/02 , H03H7/48 , H01P5/16 , H03H11/36
CPC分类号： H03F1/56 , H01P5/16 , H01Q1/50 , H03F1/0288 , H03F3/24 , H03F3/68 , H03F2200/225 , H03F2200/255 , H03H7/48 , H03H11/36
摘要： The present disclosure includes dynamic power divider circuits and methods. In one embodiment, a dynamic power divider includes first and second quarter wave lines that receive an input signal and produce first and second signal on second terminals of the lines. Dynamic power division of the input signal uses a variable impedance circuit between the second terminal of the first quarter wave line and the second terminal of the second quarter wave line. The variable impedance may reduce impedance between two output paths as the input signal power increases or increase impedance between the output paths as the input signal power decreases.
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公开(公告)号：US20170244366A1
公开(公告)日：2017-08-24
申请号：US15516748
申请日：2014-10-07
CPC分类号： H03F1/0288 , H03F1/02 , H03F1/0294 , H03F1/3241 , H03F3/19 , H03F3/211 , H03F3/24 , H03F3/602 , H03F2200/198 , H03F2200/255 , H03F2200/451 , H03F2203/21145
摘要： A driver circuit for a composite power amplifier configured to operate in at least one Chireix-mode a first and a second sub-amplifier for amplification of an input signal into an output signal is disclosed. An input network of the driver circuit comprises a means configured to provide a first signal which is linearly derivable from the input signal, and a second signal which is non-linearly derivable from the input signal. The input network combines the first signal, at zero degrees phase shift, and the second signal, at 90 degrees phase shift, to obtain a first feeding signal for the first sub-amplifier. Furthermore, the input network combines the first signal, at 180 degrees phase shift, and the second signal, at 90 degrees phase shift, to obtain a second feeding signal for the second sub-amplifier.
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公开(公告)号：US09660594B2
公开(公告)日：2017-05-23
申请号：US14293278
申请日：2014-06-02
发明人： Travis A. Barbieri , Basim H. Noori
CPC分类号： H03F1/56 , H01P1/2039 , H03F1/565 , H03F3/193 , H03F3/601 , H03F2200/165 , H03F2200/171 , H03F2200/255 , H03F2200/387 , H03F2200/451 , H03H7/0123 , H03H11/1213
摘要： In general the embodiments described herein can provide alternating-current (AC) resonating filters. These resonating filters comprise a transmission line, a first resonator, and a second resonator. The first resonator is configured to block AC signals in a first frequency range, while the second resonator is configured to block AC signals in a second frequency range, where the second frequency range is higher than the first frequency range. The transmission line has a first node coupled to an AC source, and the first resonator is coupled to the transmission line a first distance from the first node, and the second resonator is coupled to the transmission line a second distance from the first node, where the second distance is greater than the first distance. When so configured the resonating filter can effectively block signals in multiple selected frequency bandwidths.
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