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公开(公告)号：US12160255B2
公开(公告)日：2024-12-03
申请号：US18473140
申请日：2023-09-22
Applicant: Apple Inc.
Inventor： Lucas Calderin , Mehmet T Ozgun
Abstract: An electronic device may include signal transmission circuitry such as wireless circuitry having a signal source, a signal path, and an output node coupled to an output load. The signal source may transmit a signal to the output load over the signal path. The output load may have an impedance characterized by a first reflection coefficient. A signal coupler may be disposed on the signal path. A power detector coupled to a coupled node of the signal coupler may measure a voltage at the third node. A termination coupled to an isolated node of the signal coupler may include components that cause the termination to exhibit a second reflection coefficient. The second reflection coefficient may be selected to configure the voltage at the third node to track a power wave at the output load to within a constant that is invariant as the first reflection coefficient changes over time.
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公开(公告)号：US20230268941A1
公开(公告)日：2023-08-24
申请号：US17675983
申请日：2022-02-18
Applicant: Apple Inc.
Inventor： Lucas Calderin , Mehmet T Ozgun
CPC classification number: H04B1/0475 , H03F3/245 , H03F2200/451 , H04B2001/0416
Abstract: An electronic device may include signal transmission circuitry such as wireless circuitry having a signal source, a signal path, and an output node coupled to an output load. The signal source may transmit a signal to the output load over the signal path. The output load may have an impedance characterized by a first reflection coefficient. A signal coupler may be disposed on the signal path. A power detector coupled to a coupled node of the signal coupler may measure a voltage at the third node. A termination coupled to an isolated node of the signal coupler may include components that cause the termination to exhibit a second reflection coefficient. The second reflection coefficient may be selected to configure the voltage at the third node to track a power wave at the output load to within a constant that is invariant as the first reflection coefficient changes over time.
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公开(公告)号：US11888504B2
公开(公告)日：2024-01-30
申请号：US17675983
申请日：2022-02-18
Applicant: Apple Inc.
Inventor： Lucas Calderin , Mehmet T Ozgun
CPC classification number: H04B1/0475 , H03F3/245 , H03F2200/451 , H04B2001/0416
Abstract: An electronic device may include signal transmission circuitry such as wireless circuitry having a signal source, a signal path, and an output node coupled to an output load. The signal source may transmit a signal to the output load over the signal path. The output load may have an impedance characterized by a first reflection coefficient. A signal coupler may be disposed on the signal path. A power detector coupled to a coupled node of the signal coupler may measure a voltage at the third node. A termination coupled to an isolated node of the signal coupler may include components that cause the termination to exhibit a second reflection coefficient. The second reflection coefficient may be selected to configure the voltage at the third node to track a power wave at the output load to within a constant that is invariant as the first reflection coefficient changes over time.
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公开(公告)号：US20240014837A1
公开(公告)日：2024-01-11
申请号：US18473140
申请日：2023-09-22
Applicant: Apple Inc.
Inventor： Lucas Calderin , Mehmet T Ozgun
CPC classification number: H04B1/0475 , H03F3/245 , H04B17/103 , H04B2001/0416 , H03F2200/451
Abstract: An electronic device may include signal transmission circuitry such as wireless circuitry having a signal source, a signal path, and an output node coupled to an output load. The signal source may transmit a signal to the output load over the signal path. The output load may have an impedance characterized by a first reflection coefficient. A signal coupler may be disposed on the signal path. A power detector coupled to a coupled node of the signal coupler may measure a voltage at the third node. A termination coupled to an isolated node of the signal coupler may include components that cause the termination to exhibit a second reflection coefficient. The second reflection coefficient may be selected to configure the voltage at the third node to track a power wave at the output load to within a constant that is invariant as the first reflection coefficient changes over time.
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