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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
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.
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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
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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公开(公告)号：US20210384899A1
公开(公告)日：2021-12-09
申请号：US16987335
申请日：2020-08-06
Applicant: Samsung Electronics Co., Ltd.
Inventor： Amitoj Singh , Tienyu Chang , Siu-Chuang Ivan Lu
Abstract: A shunt switch. In some embodiments, the shunt switch includes a transistor stack including a first transistor and a capacitor. The transistor stack may have a first end terminal and a second end terminal, the first transistor being connected to the first end terminal, the first end terminal being connected to a switching terminal of the shunt switch. The capacitor may have a first terminal connected to the second end terminal of the transistor stack, and a second terminal connected to a low-impedance node.
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公开(公告)号：US12028058B2
公开(公告)日：2024-07-02
申请号：US18301184
申请日：2023-04-14
Applicant: Samsung Electronics Co., Ltd.
Inventor： Amitoj Singh , Tienyu Chang , Siu-Chuang Ivan Lu
CPC classification number: H03K17/56 , H03F3/245 , H04B1/04 , H03F2200/451 , H03K2217/0036
Abstract: A shunt switch. In some embodiments, the shunt switch includes a transistor stack including a first transistor and a capacitor. The transistor stack may have a first end terminal and a second end terminal, the first transistor being connected to the first end terminal, the first end terminal being connected to a switching terminal of the shunt switch. The capacitor may have a first terminal connected to the second end terminal of the transistor stack, and a second terminal connected to a low-impedance node.
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Patent Agency Ranking
公开(公告)号：US11870512B2
公开(公告)日：2024-01-09
申请号：US17731251
申请日：2022-04-27
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yanru Tang , Pranav Dayal , Hou-Shin Chen , Pritesh Vora , Tienyu Chang , Siuchuang Ivan Lu , Kee-Bong Song
CPC classification number: H04B7/04 , H03F3/245 , H04B2001/0416
Abstract: A closed-loop power control (CLPC) system is disclosed that includes a first signal path for a first polarization and a second signal path for a second polarization. The first signal path includes a first power amplifier, a first output power detector configured to detect a first output power level of the first power amplifier, and a first processor configured to determine a first analog gain for a first controller and a first gain for a first digital-to-analog converter based on a first accumulated error between the first output power level and a target Effective Isotropically Radiated Power. A second processor is configured to set a first variable gain of a first variable gain amplifier coupled to an input of the first power amplifier. The CLPC can be configured to control the gain of the first signal path separately or as one signal path.
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16.发明授权公开(公告)号：US11621470B2
公开(公告)日：2023-04-04
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
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.
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17.发明授权公开(公告)号：US11581852B2
公开(公告)日：2023-02-14
申请号：US17511434
申请日：2021-10-26
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hariharan Nagarajan , Ashutosh Verma , Chung Lau , Tienyu Chang
Abstract: According to one embodiment, a transceiver includes: a radio transmitter including a power amplifier; a detector circuit including: a squaring circuit configured to receive an output of the power amplifier of the radio transmitter and configured to produce an output current; and a DC current absorber electrically connected to an output terminal of the squaring circuit.
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公开(公告)号：US11183973B1
公开(公告)日：2021-11-23
申请号：US16989421
申请日：2020-08-10
Applicant: Samsung Electronics Co., Ltd.
Inventor： Ajaypat Jain , Amitoj Singh , Xiaohua Yu , Tienyu Chang , Siu-Chuang Ivan Lu , Sang Won Son
Abstract: An electronic circuit and method are provided. The electronic circuit includes an in-phase (I)-quadrature (Q) amplifier including an I cascode branch and a Q cascode branch, the IQ amplifier configured to receive a differential input and control signals, control, based on the control signals, gate voltages in the I cascode branch and gate voltages in the Q cascode branch, generate an I output signal with the I cascode branch, and generate a Q output signal with the Q cascode branch, and a quadrature coupler configured to perform quadrature summation of the I output signal and the Q output signal and generate a final phase shifted output.
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19.发明授权公开(公告)号：US11171609B2
公开(公告)日：2021-11-09
申请号：US17142058
申请日：2021-01-05
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hariharan Nagarajan , Ashutosh Verma , Chung Lau , Tienyu Chang
Abstract: A detector circuit includes: a squaring circuit configured to receive an output of a power amplifier of a radio transmitter and to produce an output current, the output of the power amplifier including: a desired tone; a local oscillator leakage tone; and an image tone, and the output current of the squaring circuit including: a direct current (DC) component including a function of the desired tone and an alternating current (AC) component; and a DC current absorber electrically connected to an output terminal of the squaring circuit, the DC current absorber being configured to filter out the DC component of the output current of the squaring circuit to produce a filtered output of the squaring circuit, the filtered output including the AC component including functions of the local oscillator leakage tone and the image tone.
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