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公开(公告)号：US20250150052A1
公开(公告)日：2025-05-08
申请号：US19017638
申请日：2025-01-11
Applicant: pSemi Corporation
Inventor： Emre Ayranci , Miles Sanner , Ke Li , James Francis McElwee , Tero Tapio Ranta , Kevin Roberts , Chih-Chieh Cheng
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：US20240288476A1
公开(公告)日：2024-08-29
申请号：US18534003
申请日：2023-12-08
Applicant: pSemi Corporation
Inventor： Damian Costa , Chih-Chieh Cheng , Christopher C. Murphy , Tero Tapio Ranta
IPC: G01R19/25 , G01R31/40 , H03F1/02 , H04B10/079
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：US20220231654A1
公开(公告)日：2022-07-21
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
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：US20200321935A1
公开(公告)日：2020-10-08
申请号：US16852275
申请日：2020-04-17
Applicant: pSemi Corporation
Inventor： Emre Ayranci , Miles Sanner , Ke Li , James Francis McElwee , Tero Tapio Ranta , Kevin Roberts , Chih-Chieh Cheng
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：US10340876B2
公开(公告)日：2019-07-02
申请号：US15048744
申请日：2016-02-19
Applicant: pSemi Corporation
Inventor： Chih-Chieh Cheng , Tero Tapio Ranta , Richard Bryon Whatley , Vikram Sekar
Abstract: A high performance integrated tunable impedance matching network with coupled merged inductors. Embodiments include a combination of merged multiport constructively coupled spiral inductors and tunable capacitors configured to reduce insertion losses, circuit size, and optimization time while maintaining a high Q factor for the coupled spiral inductors. Some embodiments integrate one or more filter circuits with a tunable impedance matching network, useful in conjunction with such applications as radio frequency power amplifiers.
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Patent Agency Ranking
公开(公告)号：US10141958B2
公开(公告)日：2018-11-27
申请号：US15048764
申请日：2016-02-19
Applicant: pSemi Corporation
Inventor： Tero Tapio Ranta , Kevin Roberts , Chih-Chieh Cheng
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 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 also 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 also be included on the common port of the multi-path RF switch to provide additional impedance matching capability.
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公开(公告)号：US20230246602A1
公开(公告)日：2023-08-03
申请号：US18163755
申请日：2023-02-02
Applicant: pSemi Corporation
Inventor： Tero Tapio Ranta , Chih-Chieh Cheng , Kevin Roberts
CPC classification number: H03F1/56 , H03F3/19 , H03F3/195 , H03F3/213 , H03F2200/451 , H03F2200/387 , H03F2200/378
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：US20220390493A1
公开(公告)日：2022-12-08
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
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：US11251765B2
公开(公告)日：2022-02-15
申请号：US16852275
申请日：2020-04-17
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 , H04W72/04 , H04W28/06 , H04L5/00
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：US11005432B2
公开(公告)日：2021-05-11
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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