公开(公告)号：US12028096B2

公开(公告)日：2024-07-02

申请号：US17489163

申请日：2021-09-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rohit Chatterjee ,  Debapriya Sahu

IPC: H04B1/00 ,  H03C7/02 ,  H04B1/02 ,  H04B1/04 ,  H04B7/02

CPC classification number: H04B1/0064 ,  H04B1/0475 ,  H04B1/0483 ,  H04B2001/0408

Abstract: A transmitter comprises an antenna array demultiplexor having a first input for an output signal, a second input for a control signal, a first output coupled to a first output pin, and a second output coupled to a second output pin. The antenna array demultiplexor provides the output signal to the first or second output based on the control signal. The first and second output pins are coupled to first and second antennae, respectively. In some implementations, the transmitter includes a transformer and a capacitor coupled in parallel between the first and second output pins, and the antenna array demultiplexor comprises a first switch coupled between the first output pin and a first ground pin, and a second switch coupled between the second output pin and a second ground pin. The first switch receives a second control signal, and the second switch receives an inverse of the second control signal.

公开(公告)号：US11705867B2

公开(公告)日：2023-07-18

申请号：US17690415

申请日：2022-03-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Debapriya Sahu ,  Rohit Chatterjee

IPC: H03F1/02 ,  H03F3/21 ,  H03F3/193 ,  H03F3/45 ,  H03H7/06

CPC classification number: H03F1/0222 ,  H03F3/193 ,  H03F3/211 ,  H03F3/45179 ,  H03F3/45475 ,  H03F2200/102 ,  H03F2200/171 ,  H03F2200/273 ,  H03F2200/378 ,  H03F2200/387 ,  H03F2200/393 ,  H03F2200/451 ,  H03F2203/21139 ,  H03F2203/21157 ,  H03H7/06

Abstract: One example includes a device that is comprised of a pre-power amplifier, a power amplifier, a signal path, and a dynamic bias circuit. The pre-power amplifier amplifies an input signal and outputs a first amplified signal. The power amplifier receives the first amplified signal and amplifies the first amplified signal based on a dynamic bias signal to produce a second amplified signal at an output thereof. The signal path is coupled between an output of the pre-power amplifier and an input of the power amplifier. The dynamic bias circuit monitors the first amplified signal, generates the dynamic bias signal, and outputs the dynamic bias into the signal path.

公开(公告)号：US20210314018A1

公开(公告)日：2021-10-07

申请号：US17348817

申请日：2021-06-16

Applicant: Texas Instruments Incorporated

Inventor： Debapriya Sahu ,  Rohit Chatterjee ,  Srinivas Venkata Veeramreddi

IPC: H04B1/44 ,  H04L27/36

Abstract: A wireless transceiver. The transceiver includes: (i) a transmit signal path; (ii) a calibration path, comprising a conductor to connect a calibration tone into the transmit signal path; (iii) a receive signal path, comprising a first data signal path to process a first data and a second data signal path, different than the first data signal path, to process a second data; (iv) a first capacitive coupling to couple a response to the calibration tone from the transmit signal path to the first data signal path; and (v) a second capacitive coupling to couple a response to the calibration tone from the transmit signal path to the second data signal path.

公开(公告)号：US11070242B2

公开(公告)日：2021-07-20

申请号：US16404598

申请日：2019-05-06

Applicant: Texas Instruments Incorporated

Inventor： Debapriya Sahu ,  Rohit Chatterjee ,  Srinivas Venkata Veeramreddi

IPC: H04B1/44 ,  H04L27/36

Abstract: A wireless transceiver. The transceiver includes: (i) a transmit signal path; (ii) a calibration path, comprising a conductor to connect a calibration tone into the transmit signal path; (iii) a receive signal path, comprising a first data signal path to process a first data and a second data signal path, different than the first data signal path, to process a second data; (iv) a first capacitive coupling to couple a response to the calibration tone from the transmit signal path to the first data signal path; and (v) a second capacitive coupling to couple a response to the calibration tone from the transmit signal path to the second data signal path.

公开(公告)号：US20240380428A1

公开(公告)日：2024-11-14

申请号：US18783793

申请日：2024-07-25

Applicant: Texas Instruments Incorporated

Inventor： Debapriya Sahu ,  Rohit Chatterjee ,  Srinivas Venkata Veeramreddi

IPC: H04B1/44 ,  H04L27/36

Abstract: A wireless transceiver. The transceiver includes: (i) a transmit signal path; (ii) a calibration path, comprising a conductor to connect a calibration tone into the transmit signal path; (iii) a receive signal path, comprising a first data signal path to process a first data and a second data signal path, different than the first data signal path, to process a second data; (iv) a first capacitive coupling to couple a response to the calibration tone from the transmit signal path to the first data signal path; and (v) a second capacitive coupling to couple a response to the calibration tone from the transmit signal path to the second data signal path.

公开(公告)号：US12068774B2

公开(公告)日：2024-08-20

申请号：US18312720

申请日：2023-05-05

Applicant: Texas Instruments Incorporated

Inventor： Debapriya Sahu ,  Rohit Chatterjee ,  Srinivas Venkata Veeramreddi

IPC: H04B1/44 ,  H04L27/36

CPC classification number: H04B1/44 ,  H04L27/367

Abstract: A wireless transceiver. The transceiver includes: (i) a transmit signal path; (ii) a calibration path, comprising a conductor to connect a calibration tone into the transmit signal path; (iii) a receive signal path, comprising a first data signal path to process a first data and a second data signal path, different than the first data signal path, to process a second data; (iv) a first capacitive coupling to couple a response to the calibration tone from the transmit signal path to the first data signal path; and (v) a second capacitive coupling to couple a response to the calibration tone from the transmit signal path to the second data signal path.

公开(公告)号：US20230275614A1

公开(公告)日：2023-08-31

申请号：US18312720

申请日：2023-05-05

Applicant: Texas Instruments Incorporated

Inventor： Debapriya Sahu ,  Rohit Chatterjee ,  Srinivas Venkata Veeramreddi

IPC: H04B1/44 ,  H04L27/36

CPC classification number: H04B1/44 ,  H04L27/367

Abstract: A wireless transceiver. The transceiver includes: (i) a transmit signal path; (ii) a calibration path, comprising a conductor to connect a calibration tone into the transmit signal path; (iii) a receive signal path, comprising a first data signal path to process a first data and a second data signal path, different than the first data signal path, to process a second data; (iv) a first capacitive coupling to couple a response to the calibration tone from the transmit signal path to the first data signal path; and (v) a second capacitive coupling to couple a response to the calibration tone from the transmit signal path to the second data signal path.

公开(公告)号：US11050387B2

公开(公告)日：2021-06-29

申请号：US16564881

申请日：2019-09-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rohit Chatterjee

IPC: G06G7/12 ,  H03F1/02 ,  H03K17/56 ,  H03F3/45 ,  H03F3/213 ,  H03H7/38

Abstract: An integrated circuit device is provided. In some examples, the integrated circuit device includes a first amplifier path, a second amplifier path coupled in parallel with the first amplifier path, a matching network coupled to the first amplifier path and the second amplifier path, and an antenna coupled to the matching network. In some such examples, the first amplifier path includes a first differential power amplifier coupled to the matching network, and the second amplifier path includes a second differential power amplifier coupled to the matching network. The integrated circuit device may further include a controller coupled to selectively enable the first amplifier path to provide a transmitter output power within a first range and to selectively enable the second amplifier path to provide a transmitter output power within a second range that is different from the first range.