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公开(公告)号：US20220094451A1
公开(公告)日：2022-03-24
申请号：US17031753
申请日：2020-09-24
Applicant: Apple Inc.
Inventor： Hongrui Wang , Abbas Komijani , Saihua Lin , Sohrab Emami-Neyestanak
IPC: H04B17/21 , H03B5/18 , H04B17/345
Abstract: An electronic device may include a harmonic rejection mixer with a delay line, mixer array, and load. The delay line may generate LO phases. Each mixer in the array may have a first input that receives an LO phase and a second input coupled to an input switch and the first input of the next mixer circuit through an inter-mixer switch. The load may include a set of switches. In a transmit mode, the input switches and set of switches may be closed while the inter-mixer switches are open. In a self-calibration mode, the input switches and set of switches may be open while the inter-mixer switches are closed. A controller may sweep through phase codes for the programmable delay line while storing a digital output from the load. The controller may calibrate the phase code based on the digital output.
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公开(公告)号：US10985724B1
公开(公告)日：2021-04-20
申请号：US16898054
申请日：2020-06-10
Applicant: Apple Inc.
Inventor： Hongrui Wang , Sohrab Emami-Neyestanak , Saihua Lin
Abstract: A radio frequency filtering circuitry includes a first inductor, a second inductor, and a conductive loop. The first inductor receives a first current that induces a second current in the second inductor upon receiving the first current. The first inductor and/or the second inductor induce a third current in the conductive loop. The conductive loop adjusts the third current to reduce a first gain peak of an output signal to correlate to a second gain peak of the output signal.
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公开(公告)号：US10819384B2
公开(公告)日：2020-10-27
申请号：US16147436
申请日：2018-09-28
Applicant: Apple Inc.
Inventor： Sohrab Emami-Neyestanak , Saihua Lin
Abstract: A transceiver circuit that includes a receiver and transmitter circuits may send and receive data signals using an antenna. The transceiver circuit may be coupled to the antenna and other circuits using multiple impedance matching networks configured to match input and output impedance values of the receiver and transmitter circuits to the antenna and other circuits. The impedance matching networks may selectively couple and decouple different ports of the receiver and transmitter circuits to other circuit nodes based on whether the transceiver is operating in transmit or receive mode.
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公开(公告)号：US11799429B2
公开(公告)日：2023-10-24
申请号：US17481092
申请日：2021-09-21
Applicant: Apple Inc.
Inventor： Saihua Lin , Hongrui Wang , Sohrab Emami-Neyestanak
CPC classification number: H03F3/195 , H03F3/213 , H03F2200/294 , H03F2200/451
Abstract: The present disclosure relates to systems and methods for operating transceiver circuitry to transmit or receive signals on various frequency ranges. To do so, a transmitter or a receiver of the transceiver circuitry is selectively coupled to or uncoupled from an antenna of the transceiver circuitry. Additionally, radio frequency filters may be individually or collectively coupled to and/or uncoupled from the antenna to filter different frequencies in the transmitting or receiving signals.
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15.发明申请公开(公告)号：US20230081370A1
公开(公告)日：2023-03-16
申请号：US17542961
申请日：2021-12-06
Applicant: Apple Inc.
Inventor： Saihua Lin
Abstract: An electronic device may include wireless circuitry with a processor, a transceiver, an antenna, and a front-end module coupled between the transceiver and the antenna. The front-end module may include one or more power amplifiers for amplifying a signal for transmission through the antenna. A power amplifier may include a phase distortion compensation circuit. The phase distortion compensation circuit may include one or more n-type metal-oxide-semiconductor capacitors configured to receive a bias voltage. The bias voltage may be set to provide the proper amount of phase distortion compensation.
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Patent Agency Ranking
16.发明授权公开(公告)号：US11601152B1
公开(公告)日：2023-03-07
申请号：US17542961
申请日：2021-12-06
Applicant: Apple Inc.
Inventor： Saihua Lin
Abstract: An electronic device may include wireless circuitry with a processor, a transceiver, an antenna, and a front-end module coupled between the transceiver and the antenna. The front-end module may include one or more power amplifiers for amplifying a signal for transmission through the antenna. A power amplifier may include a phase distortion compensation circuit. The phase distortion compensation circuit may include one or more n-type metal-oxide-semiconductor capacitors configured to receive a bias voltage. The bias voltage may be set to provide the proper amount of phase distortion compensation.
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公开(公告)号：US20230006745A1
公开(公告)日：2023-01-05
申请号：US17941975
申请日：2022-09-09
Applicant: Apple Inc.
Inventor： Hongrui Wang , Abbas Komijani , Saihua Lin , Sohrab Emami-Neyestanak
IPC: H04B17/21 , H04B17/345 , H03B5/18
Abstract: An electronic device may include a harmonic rejection mixer with a delay line, mixer array, and load. The delay line may generate LO phases. Each mixer in the array may have a first input that receives an LO phase and a second input coupled to an input switch and the first input of the next mixer circuit through an inter-mixer switch. The load may include a set of switches. In a transmit mode, the input switches and set of switches may be closed while the inter-mixer switches are open. In a self-calibration mode, the input switches and set of switches may be open while the inter-mixer switches are closed. A controller may sweep through phase codes for the programmable delay line while storing a digital output from the load. The controller may calibrate the phase code based on the digital output.
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公开(公告)号：US11495389B2
公开(公告)日：2022-11-08
申请号：US15930084
申请日：2020-05-12
Applicant: Apple Inc.
Inventor： Hongrui Wang , Saihua Lin , Abbas Komijani , Sohrab Emami-Neyestanak
Abstract: Radio frequency filtering circuitry blocks certain frequencies in an outgoing signal so that the signal may be transmitted over a desired frequency. The radio frequency filtering circuitry includes a first inductor having a first coil and a second inductor coupled to and disposed within the first coil. The second inductor has a second coil and a third coil symmetrical to the second coil. When current is applied to the radio frequency filtering circuitry, the current in the second coil causes a first induced current in the first coil and the current in the third coil causes a second induced current in the first coil, wherein the second induced current is approximately equal in magnitude and opposite in direction to the first induced current. As such, the second induced current may compensate for the first induced current.
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公开(公告)号：US20220200709A1
公开(公告)日：2022-06-23
申请号：US17692756
申请日：2022-03-11
Applicant: Apple Inc.
Inventor： Hongrui Wang , Abbas Komijani , Saihua Lin , Sohrab Emami-Neyestanak
IPC: H04B17/21 , H03B5/18 , H04B17/345
Abstract: An electronic device may include a harmonic rejection mixer with a delay line, mixer array, and load. The delay line may generate LO phases. Each mixer in the array may have a first input that receives an LO phase and a second input coupled to an input switch and the first input of the next mixer circuit through an inter-mixer switch. The load may include a set of switches. In a transmit mode, the input switches and set of switches may be closed while the inter-mixer switches are open. In a self-calibration mode, the input switches and set of switches may be open while the inter-mixer switches are closed. A controller may sweep through phase codes for the programmable delay line while storing a digital output from the load. The controller may calibrate the phase code based on the digital output.
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公开(公告)号：US20210408980A1
公开(公告)日：2021-12-30
申请号：US16917325
申请日：2020-06-30
Applicant: Apple Inc.
Inventor： Saihua Lin , Hongrui Wang , Sohrab Emami-Neyestanak
Abstract: The present disclosure relates to systems and methods for operating transceiver circuitry to transmit or receive signals on various frequency ranges. To do so, a transmitter or a receiver of the transceiver circuitry is selectively coupled to or uncoupled from an antenna of the transceiver circuitry. Additionally, radio frequency filters may be individually or collectively coupled to and/or uncoupled from the antenna to filter different frequencies in the transmitting or receiving signals.
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