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公开(公告)号：US20200264217A1
公开(公告)日：2020-08-20
申请号：US16276494
申请日：2019-02-14
Applicant: pSemi Corporation
Inventor： Damian Costa , Chih-Chieh Cheng , Christopher C. Murphy , Tero Tapio Ranta
IPC: G01R19/25 , H03F1/02 , H04B10/079
Abstract: A power detector with wide dynamic range. The power detector includes a linear detector, followed by a voltage-to-current-to-voltage converter, which is then followed by an amplification stage. The current-to-voltage conversion in the converter is performed logarithmically. The power detector generates a desired linear-in-dB response at the output. In this power detector, the distribution of gain along the signal path is optimized in order to preserve linearity, and to minimize the impact of offset voltage inherently present in electronic blocks, which would corrupt the output voltage. Further, the topologies in the sub-blocks are designed to provide wide dynamic range, and to mitigate error sources. Moreover, the temperature sensitivity is designed out by either minimizing temperature variation of an individual block such as the v-i-v detector, or using two sub-blocks in tandem to provide overall temperature compensation. In one aspect, active resistors are used in order to compensate for temperature variations.
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公开(公告)号：US10581387B2
公开(公告)日：2020-03-03
申请号：US16029333
申请日：2018-07-06
Applicant: pSemi Corporation
Inventor： Tero Tapio Ranta , Chih-Chieh Cheng , Kevin Roberts
Abstract: An improved architecture for a radio frequency (RF) power amplifier, impedance matching network, and selector switch. One aspect of embodiments of the invention is splitting the functionality of a final stage impedance matching network (IMN) into two parts, comprising a base set of off-chip IMN components and an on-chip IMN tuning component. The on-chip IMN tuning component may be a digitally tunable capacitor (DTC). In one embodiment, an integrated circuit having a power amplifier, an on-chip IMN tuner, and a selector switch is configured to be coupled to an off-chip set of IMN components. In another embodiment, an integrated circuit having an on-chip IMN tuner and a selector switch is configured to be coupled through an off-chip set of IMN components to a separate integrated circuit having an RF power amplifier.
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公开(公告)号：US12237821B2
公开(公告)日：2025-02-25
申请号：US18492357
申请日：2023-10-23
Applicant: pSemi Corporation
Inventor： Emre Ayranci , Miles Sanner , Ke Li , James Francis McElwee , Tero Tapio Ranta , Kevin Roberts , Chih-Chieh Cheng
IPC: H04B1/04 , H01B1/00 , H03H7/01 , H03H7/38 , H04B1/00 , H04B1/40 , H04W72/0453 , H04W88/06 , H04L5/00 , H04W28/06
Abstract: A flexible multi-path RF adaptive tuning network switch architecture that counteracts impedance mismatch conditions arising from various combinations of coupled RF band filters, particularly in a Carrier Aggregation-based (CA) radio system. In one version, a digitally-controlled tunable matching network is coupled to a multi-path RF switch in order to provide adaptive impedance matching for various combinations of RF band filters. Optionally, some or all RF band filters include an associated digitally-controlled filter pre-match network to further improve impedance matching. In a second version, some or all RF band filters coupled to a multi-path RF switch include a digitally-controlled phase matching network to provide necessary per-band impedance matching. Optionally, a digitally-controlled tunable matching network may be included on the common port of the multi-path RF switch to provide additional impedance matching capability. In a third version, CA direct mapped adaptive tuning networks include filter tuning blocks for selected lower frequency bands.
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公开(公告)号：US11846660B2
公开(公告)日：2023-12-19
申请号：US17845754
申请日：2022-06-21
Applicant: pSemi Corporation
Inventor： Damian Costa , Chih-Chieh Cheng , Christopher C Murphy , Tero Tapio Ranta
IPC: G01R19/25 , H04B10/079 , H03F1/02 , G01R31/40
CPC classification number: G01R19/2513 , H03F1/0211 , H04B10/07955 , G01R31/40
Abstract: A power detector with wide dynamic range. The power detector includes a linear detector, followed by a voltage-to-current-to-voltage converter, which is then followed by an amplification stage. The current-to-voltage conversion in the converter is performed logarithmically. The power detector generates a desired linear-in-dB response at the output. In this power detector, the distribution of gain along the signal path is optimized in order to preserve linearity, and to minimize the impact of offset voltage inherently present in electronic blocks, which would corrupt the output voltage. Further, the topologies in the sub-blocks are designed to provide wide dynamic range, and to mitigate error sources. Moreover, the temperature sensitivity is designed out by either minimizing temperature variation of an individual block such as the v-i-v detector, or using two sub-blocks in tandem to provide overall temperature compensation. In one aspect, active resistors are used in order to compensate for temperature variations.
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公开(公告)号：US11804816B2
公开(公告)日：2023-10-31
申请号：US17669789
申请日：2022-02-11
Applicant: pSemi Corporation
Inventor： Emre Ayranci , Miles Sanner , Ke Li , James Francis McElwee , Tero Tapio Ranta , Kevin Roberts , Chih-Chieh Cheng
IPC: H04B1/04 , H04B1/40 , H01B1/00 , H04W88/06 , H03H7/38 , H03H7/01 , H04B1/00 , H04W72/0453 , H04W28/06 , H04L5/00
CPC classification number: H03H7/0161 , H04B1/006 , H04B1/0053 , H04B1/0067 , H04W72/0453 , H03H7/38 , H03H2210/033 , H03H2210/036 , H04L5/001 , H04W28/065
Abstract: A flexible multi-path RF adaptive tuning network switch architecture that counteracts impedance mismatch conditions arising from various combinations of coupled RF band filters, particularly in a Carrier Aggregation-based (CA) radio system. In one version, a digitally-controlled tunable matching network is coupled to a multi-path RF switch in order to provide adaptive impedance matching for various combinations of RF band filters. Optionally, some or all RF band filters include an associated digitally-controlled filter pre-match network to further improve impedance matching. In a second version, some or all RF band filters coupled to a multi-path RF switch include a digitally-controlled phase matching network to provide necessary per-band impedance matching. Optionally, a digitally-controlled tunable matching network may be included on the common port of the multi-path RF switch to provide additional impedance matching capability. In a third version, CA direct mapped adaptive tuning networks include filter tuning blocks for selected lower frequency bands.
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Patent Agency Ranking
公开(公告)号：US11385267B2
公开(公告)日：2022-07-12
申请号：US16276494
申请日：2019-02-14
Applicant: pSemi Corporation
Inventor： Damian Costa , Chih-Chieh Cheng , Christopher C. Murphy , Tero Tapio Ranta
IPC: G01R19/25 , H04B10/079 , H03F1/02 , G01R31/40
Abstract: A power detector with wide dynamic range. The power detector includes a linear detector, followed by a voltage-to-current-to-voltage converter, which is then followed by an amplification stage. The current-to-voltage conversion in the converter is performed logarithmically. The power detector generates a desired linear-in-dB response at the output. In this power detector, the distribution of gain along the signal path is optimized in order to preserve linearity, and to minimize the impact of offset voltage inherently present in electronic blocks, which would corrupt the output voltage. Further, the topologies in the sub-blocks are designed to provide wide dynamic range, and to mitigate error sources. Moreover, the temperature sensitivity is designed out by either minimizing temperature variation of an individual block such as the v-i-v detector, or using two sub-blocks in tandem to provide overall temperature compensation. In one aspect, active resistors are used in order to compensate for temperature variations.
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公开(公告)号：US20210336588A1
公开(公告)日：2021-10-28
申请号：US17243038
申请日：2021-04-28
Applicant: pSemi Corporation
Inventor： Tero Tapio Ranta , Chih-Chieh Cheng , Kevin Roberts
Abstract: An improved architecture for a radio frequency (RF) power amplifier, impedance matching network, and selector switch. One aspect of embodiments of the invention is splitting the functionality of a final stage impedance matching network (IMN) into two parts, comprising a base set of off-chip IMN components and an on-chip IMN tuning component. The on-chip IMN tuning component may be a digitally tunable capacitor (DTC). In one embodiment, an integrated circuit having a power amplifier, an on-chip IMN tuner, and a selector switch is configured to be coupled to an off-chip set of IMN components. In another embodiment, an integrated circuit having an on-chip IMN tuner and a selector switch is configured to be coupled through an off-chip set of IMN components to a separate integrated circuit having an RF power amplifier.
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公开(公告)号：US20200235709A1
公开(公告)日：2020-07-23
申请号：US16752330
申请日：2020-01-24
Applicant: pSemi Corporation
Inventor： Tero Tapio Ranta , Chih-Chieh Cheng , Kevin Roberts
Abstract: An improved architecture for a radio frequency (RF) power amplifier, impedance matching network, and selector switch. One aspect of embodiments of the invention is splitting the functionality of a final stage impedance matching network (IMN) into two parts, comprising a base set of off-chip IMN components and an on-chip IMN tuning component. The on-chip IMN tuning component may be a digitally tunable capacitor (DTC). In one embodiment, an integrated circuit having a power amplifier, an on-chip IMN tuner, and a selector switch is configured to be coupled to an off-chip set of IMN components. In another embodiment, an integrated circuit having an on-chip IMN tuner and a selector switch is configured to be coupled through an off-chip set of IMN components to a separate integrated circuit having an RF power amplifier.
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公开(公告)号：US10439564B1
公开(公告)日：2019-10-08
申请号：US15942328
申请日：2018-03-30
Applicant: pSemi Corporation
Inventor： Damian Costa , Chih-Chieh Cheng , Richard B. Whatley , Tero Tapio Ranta
Abstract: Methods and devices for improving AM-AM and AM-PM performance of an RF amplifier are presented. According to one aspect, input and output harmonic terminations coupled to the input and output of the amplifier are tuned at frequencies near to, but different than, a second harmonic frequency of an RF signal to be amplified. Improved AM-AM and AM-PM performance is obtained when i) the input harmonic termination is tuned at a frequency that is below the second harmonic frequency and the output harmonic termination is tuned at a frequency that is above the second harmonic frequency, and ii) the input harmonic termination is tuned at a frequency that is farther away from the second harmonic frequency than the frequency used for tuning of the output harmonic termination.
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公开(公告)号：US20190140602A1
公开(公告)日：2019-05-09
申请号：US16029333
申请日：2018-07-06
Applicant: pSemi Corporation
Inventor： Tero Tapio Ranta , Chih-Chieh Cheng , Kevin Roberts
CPC classification number: H03F1/56 , H03F3/19 , H03F3/195 , H03F3/213 , H03F2200/378 , H03F2200/387 , H03F2200/451
Abstract: An improved architecture for a radio frequency (RF) power amplifier, impedance matching network, and selector switch. One aspect of embodiments of the invention is splitting the functionality of a final stage impedance matching network (IMN) into two parts, comprising a base set of off-chip IMN components and an on-chip IMN tuning component. The on-chip IMN tuning component may be a digitally tunable capacitor (DTC). In one embodiment, an integrated circuit having a power amplifier, an on-chip IMN tuner, and a selector switch is configured to be coupled to an off-chip set of IMN components. In another embodiment, an integrated circuit having an on-chip IMN tuner and a selector switch is configured to be coupled through an off-chip set of IMN components to a separate integrated circuit having an RF power amplifier.
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