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    Method and apparatus for loopback gain step calibration on RF chain with phase shifter
    1.
    发明授权
    Method and apparatus for loopback gain step calibration on RF chain with phase shifter 有权

    公开(公告)号：US11140633B2

    公开(公告)日：2021-10-05

    申请号：US16944116

    申请日：2020-07-30

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Sung-En Chiu ,  Pranav Dayal ,  Kee-Bong Song ,  Siuchuang Ivan Lu ,  Hou-Shin Chen ,  Sang Won Son

    IPC: H04W52/08 ,  H04W52/24

    Abstract: A method of gain step calibration by a user equipment (UE) includes selecting, a l th antenna path having a gain GT for a transmitter (Tx) of the UE and a corresponding m th antenna path having a gain GR for a receiver (Rx) of the UE; determining, a first loopback signal power for the l th antenna path having the gain GT for the transmitter (Tx) of the UE and the corresponding m th antenna path having the gain GR for the receiver (Rx) of the UE; determining, a second loopback signal power for the l th antenna path having a gain G′T for the transmitter (Tx) and the corresponding m th antenna path having the gain GR for the receiver (Rx); and determining, a transmitter gain step of the UE based on the first loopback signal power and the second loopback signal power.

    COMPACT HIGH-DIRECTIVITY DIRECTIONAL COUPLER STRUCTURE USING INTERDIGITATED COUPLED LINES
    3.
    发明申请
    COMPACT HIGH-DIRECTIVITY DIRECTIONAL COUPLER STRUCTURE USING INTERDIGITATED COUPLED LINES 有权

    公开(公告)号：US20220247062A1

    公开(公告)日：2022-08-04

    申请号：US17462580

    申请日：2021-08-31

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Anirban Sarkar ,  Tienyu Chang ,  Siuchuang Ivan Lu ,  Sang Won Son

    IPC: H01P5/18 ,  H01Q23/00

    Abstract: Disclosed is a device including a first line, a second line including a first section disposed on a first side of the first line and a second section disposed on a second side of the first line, the second side being opposite to the first side and the second section being separate from the first section by a distance, and at least one bridge electrically connecting an end of the first section with an end of the second section and extending across the first line. The device may be a directional coupler that achieves significantly higher directivity than conventional directional coupler structures, and hence, improves power detection accuracy.

    METHOD AND CIRCUIT FOR POWER CONSUMPTION REDUCTION IN ACTIVE PHASE SHIFTERS
    4.
    发明申请
    METHOD AND CIRCUIT FOR POWER CONSUMPTION REDUCTION IN ACTIVE PHASE SHIFTERS 有权

    公开(公告)号：US20220085763A1

    公开(公告)日：2022-03-17

    申请号：US17532340

    申请日：2021-11-22

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Ajaypat Jain ,  Amitoj Singh ,  Xiaohua Yu ,  Tienyu Chang ,  Siu-Chuang Ivan Lu ,  Sang Won Son

    IPC: H03F1/02 ,  H03F3/19 ,  H03K5/01

    Abstract: An electronic circuit and method are provided. The electronic circuit includes an amplifier including first cascode branch and a second cascode branch, the amplifier being configured to receive a differential input and control signals, control gate voltages in the first cascode branch and gate voltages in the second cascode branch, generate a first output signal with the first cascode branch, and generate a second output signal with the second cascode branch, and a coupler configured to perform a summation of the first output signal and the second output signal, and generate a final phase shifted output, wherein the first cascode branch or the second cascode branch includes a first cascode arm and a second cascode arm.

    Band switching balun
    6.
    发明授权
    Band switching balun 有权

    公开(公告)号：US11245426B2

    公开(公告)日：2022-02-08

    申请号：US16987390

    申请日：2020-08-06

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Amitoj Singh ,  Ajaypat Jain ,  Xiaohua Yu ,  Tienyu Chang ,  Siu-Chuang Ivan Lu ,  Sang Won Son

    IPC: H04L23/02 ,  H04B1/00 ,  H03D7/14 ,  H04B1/44 ,  H04B1/12

    Abstract: A band-switching network includes a dual-band balun and a switch network. The dual-band balun includes a first output and a second output. The switch network includes a first switch and a second switch in which an input to the first switch is coupled to the first output and an input to the second switch is coupled to the second balanced output. The dual-band balun further includes a primary coil, a first secondary coil and a second secondary coil in which the first secondary coil is coupled to the first balanced output and the second secondary coil is coupled to the second balanced output. In one embodiment, the primary coil and the first secondary coil are coupled by a first coupling factor k1, and the primary coil and the second secondary coil are coupled by a second coupling factor k2 that is different from the first coupling factor k1.

    System and method for linearizing a transmitter by rejecting harmonics at mixer output
    7.
    发明授权
    System and method for linearizing a transmitter by rejecting harmonics at mixer output 有权

    公开(公告)号：US10044321B2

    公开(公告)日：2018-08-07

    申请号：US15277534

    申请日：2016-09-27

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Venumadhav Bhagavatula ,  Siuchuang Ivan Lu ,  Sang Won Son

    IPC: H03D7/14

    Abstract: An apparatus and a method. The apparatus includes passive mixers, wherein each of the passive mixers includes a first input for receiving BBI, a second input for receiving BBI, a third input for receiving BBQ, a fourth input for receiving BBQ, a fifth input for receiving a first clock signal with a unique phase shift within one of the passive mixers, a sixth input for receiving a second clock signal with a unique phase shift within one of the passive mixers, a seventh input for receiving a third clock signal with a unique phase shift within one of the passive mixers, an eighth input for receiving a fourth clock signal with a unique phase shift within one of the passive mixers, and at least one output; and a voltage-domain vector summation array connected to the output of each of the passive mixers.

    Band switching balun
    9.
    发明授权
    Band switching balun 有权

    公开(公告)号：US11799504B2

    公开(公告)日：2023-10-24

    申请号：US17585480

    申请日：2022-01-26

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Amitoj Singh ,  Ajaypat Jain ,  Xiaohua Yu ,  Tienyu Chang ,  Siu-Chuang Ivan Lu ,  Sang Won Son

    IPC: H04L23/02 ,  H04B1/00 ,  H03D7/14 ,  H04B1/12 ,  H04B1/44

    CPC classification number: H04B1/006 ,  H03D7/1425 ,  H04B1/123 ,  H04B1/44

    Abstract: A band-switching network includes a dual-band balun and a switch network. The dual-band balun includes a first output and a second output. The switch network includes a first switch and a second switch in which an input to the first switch is coupled to the first output and an input to the second switch is coupled to the second balanced output. The dual-band balun further includes a primary coil, a first secondary coil and a second secondary coil in which the first secondary coil is coupled to the first balanced output and the second secondary coil is coupled to the second balanced output. In one embodiment, the primary coil and the first secondary coil are coupled by a first coupling factor k1, and the primary coil and the second secondary coil are coupled by a second coupling factor k2 that is different from the first coupling factor k1.

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