Transceiver with Shared Filter for both Transmit and Receive Modes

    公开(公告)号:US20220158687A1

    公开(公告)日:2022-05-19

    申请号:US16953244

    申请日:2020-11-19

    Applicant: Apple Inc.

    Abstract: A transceiver having a shared filter for both transmit and receive modes is disclosed. A transceiver includes a transmitter having an output coupled to a signal node, wherein the transmitter is configured to transmit signals onto the signal node during transceiver operation in a transmit mode. The transceiver also includes a receiver having an input coupled to the signal node, and configured to receive signals from the signal node during operation in the receive mode. The transceiver further includes a first filter coupled to the signal node, wherein the filter is shared by the transmitter and the receiver. The filter is coupled between the transceiver and a first terminal of a transmission line.

    Transceiver with shared filter for both transmit and receive modes

    公开(公告)号:US11381279B2

    公开(公告)日:2022-07-05

    申请号:US16953244

    申请日:2020-11-19

    Applicant: Apple Inc.

    Abstract: A transceiver having a shared filter for both transmit and receive modes is disclosed. A transceiver includes a transmitter having an output coupled to a signal node, wherein the transmitter is configured to transmit signals onto the signal node during transceiver operation in a transmit mode. The transceiver also includes a receiver having an input coupled to the signal node, and configured to receive signals from the signal node during operation in the receive mode. The transceiver further includes a first filter coupled to the signal node, wherein the filter is shared by the transmitter and the receiver. The filter is coupled between the transceiver and a first terminal of a transmission line.

    Transceiver with Shared Filter for both Transmit and Receive Modes

    公开(公告)号:US20240235609A9

    公开(公告)日:2024-07-11

    申请号:US18493799

    申请日:2023-10-24

    Applicant: Apple Inc.

    CPC classification number: H04B3/21 H04B3/04 H04B3/50 H04B15/00

    Abstract: A transceiver having a shared filter for both transmit and receive modes is disclosed. A transceiver includes a transmitter having an output coupled to a signal node, wherein the transmitter is configured to transmit signals onto the signal node during transceiver operation in a transmit mode. The transceiver also includes a receiver having an input coupled to the signal node, and configured to receive signals from the signal node during operation in the receive mode. The transceiver further includes a first filter coupled to the signal node, wherein the filter is shared by the transmitter and the receiver. The filter is coupled between the transceiver and a first terminal of a transmission line.

    Differential RF power detector with common mode rejection

    公开(公告)号:US11573253B2

    公开(公告)日:2023-02-07

    申请号:US16923991

    申请日:2020-07-08

    Applicant: Apple Inc.

    Abstract: A power detector circuit that rejects the common mode portion of a differential signal is disclosed. The circuit includes a differential input having first and second input nodes. Differential and common mode circuit paths are coupled to the differential input. The common mode circuit path includes first and second capacitors coupled to respective first terminals of first and second input nodes of the differential input. The second terminal of each of the first and second capacitors is coupled to a gate terminal of a first bias transistor. The common mode circuit path is configured to reject a common mode portion of a differential input signal provided to the differential input such that a differential output signal is indicative of an amount of power of a differential portion of the differential input signal.

    Transceiver with Shared Filter for both Transmit and Receive Modes

    公开(公告)号:US20240137068A1

    公开(公告)日:2024-04-25

    申请号:US18493799

    申请日:2023-10-23

    Applicant: Apple Inc.

    CPC classification number: H04B3/21 H04B3/04 H04B3/50 H04B15/00

    Abstract: A transceiver having a shared filter for both transmit and receive modes is disclosed. A transceiver includes a transmitter having an output coupled to a signal node, wherein the transmitter is configured to transmit signals onto the signal node during transceiver operation in a transmit mode. The transceiver also includes a receiver having an input coupled to the signal node, and configured to receive signals from the signal node during operation in the receive mode. The transceiver further includes a first filter coupled to the signal node, wherein the filter is shared by the transmitter and the receiver. The filter is coupled between the transceiver and a first terminal of a transmission line.

    Transceiver with shared filter for both transmit and receive modes

    公开(公告)号:US11838068B2

    公开(公告)日:2023-12-05

    申请号:US17810332

    申请日:2022-06-30

    Applicant: Apple Inc.

    CPC classification number: H04B3/21 H04B3/04 H04B3/50 H04B15/00

    Abstract: A transceiver having a shared filter for both transmit and receive modes is disclosed. A transceiver includes a transmitter having an output coupled to a signal node, wherein the transmitter is configured to transmit signals onto the signal node during transceiver operation in a transmit mode. The transceiver also includes a receiver having an input coupled to the signal node, and configured to receive signals from the signal node during operation in the receive mode. The transceiver further includes a first filter coupled to the signal node, wherein the filter is shared by the transmitter and the receiver. The filter is coupled between the transceiver and a first terminal of a transmission line.

    Transceiver with Shared Filter for both Transmit and Receive Modes

    公开(公告)号:US20220407560A1

    公开(公告)日:2022-12-22

    申请号:US17810332

    申请日:2022-06-30

    Applicant: Apple Inc.

    Abstract: A transceiver having a shared filter for both transmit and receive modes is disclosed. A transceiver includes a transmitter having an output coupled to a signal node, wherein the transmitter is configured to transmit signals onto the signal node during transceiver operation in a transmit mode. The transceiver also includes a receiver having an input coupled to the signal node, and configured to receive signals from the signal node during operation in the receive mode. The transceiver further includes a first filter coupled to the signal node, wherein the filter is shared by the transmitter and the receiver. The filter is coupled between the transceiver and a first terminal of a transmission line.

    Differential RF Power Detector with Common Mode Rejection

    公开(公告)号:US20220011352A1

    公开(公告)日:2022-01-13

    申请号:US16923991

    申请日:2020-07-08

    Applicant: Apple Inc.

    Abstract: A power detector circuit that rejects the common mode portion of a differential signal is disclosed. The circuit includes a differential input having first and second input nodes. Differential and common mode circuit paths are coupled to the differential input. The common mode circuit path includes first and second capacitors coupled to respective first terminals of first and second input nodes of the differential input. The second terminal of each of the first and second capacitors is coupled to a gate terminal of a first bias transistor. The common mode circuit path is configured to reject a common mode portion of a differential input signal provided to the differential input such that a differential output signal is indicative of an amount of power of a differential portion of the differential input signal.

    Harmonic trap for voltage-controlled oscillator noise reduction

    公开(公告)号:US10804847B2

    公开(公告)日:2020-10-13

    申请号:US16274193

    申请日:2019-02-12

    Applicant: Apple Inc.

    Abstract: A voltage controlled oscillator (VCO) having a harmonic trap is disclosed. A VCO includes first and second transistors cross-coupled with one another. The VCO further includes a first inductor having first and second loops coupled to one another, wherein the first inductor is arranged such that current flow through first loop is in the opposite direction of current flow in the second loop. The VCO further includes a second inductor that implements a third loop surrounding the first inductor.

    Harmonic Trap for Voltage-Controlled Oscillator Noise Reduction

    公开(公告)号:US20200259455A1

    公开(公告)日:2020-08-13

    申请号:US16274193

    申请日:2019-02-12

    Applicant: Apple Inc.

    Abstract: A voltage controlled oscillator (VCO) having a harmonic trap is disclosed. A VCO includes first and second transistors cross-coupled with one another. The VCO further includes a first inductor having first and second loops coupled to one another, wherein the first inductor is arranged such that current flow through first loop is in the opposite direction of current flow in the second loop. The VCO further includes a second inductor that implements a third loop surrounding the first inductor.

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