JP2021532674A - 無線通信機に対するｖｓｗｒ検出を介した送信機の動的ｒｆ電力制御 - Google Patents

無線通信機に対するｖｓｗｒ検出を介した送信機の動的ｒｆ電力制御 Download PDF

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Publication number
JP2021532674A
JP2021532674A JP2021504815A JP2021504815A JP2021532674A JP 2021532674 A JP2021532674 A JP 2021532674A JP 2021504815 A JP2021504815 A JP 2021504815A JP 2021504815 A JP2021504815 A JP 2021504815A JP 2021532674 A JP2021532674 A JP 2021532674A
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JP
Japan
Prior art keywords
vswr
power amplifier
antenna
power
identifying
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Pending
Application number
JP2021504815A
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English (en)
Japanese (ja)
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JP2021532674A5 (https=
JPWO2020028042A5 (https=
Inventor
ジョセフ ボローニャ ベニー
ダブリュ． スタイゲルワルド トッド
スカフィダス エストラトス
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Advanced Micro Devices Inc
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Advanced Micro Devices Inc
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Application filed by Advanced Micro Devices Inc filed Critical Advanced Micro Devices Inc
Publication of JP2021532674A publication Critical patent/JP2021532674A/ja
Publication of JP2021532674A5 publication Critical patent/JP2021532674A5/ja
Publication of JPWO2020028042A5 publication Critical patent/JPWO2020028042A5/ja
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/04—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant in circuits having distributed constants, e.g. having very long conductors or involving high frequencies
    • G01R27/06—Measuring reflection coefficients; Measuring standing-wave ratio
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H03F1/0216—Continuous control
    • H03F1/0233—Continuous control by using a signal derived from the output signal, e.g. bootstrapping the voltage supply
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H03F3/193—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/3833—Hand-held transceivers
    • H04B1/3838—Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/132—Hybrid coupler placed in a feedback circuit of an amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/198—A hybrid coupler being used as coupling circuit between stages of an amplifier circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/471—Indexing scheme relating to amplifiers the voltage being sensed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0458—Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0408—Circuits with power amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Transmitters (AREA)
  • Transceivers (AREA)
JP2021504815A 2018-07-31 2019-07-17 無線通信機に対するｖｓｗｒ検出を介した送信機の動的ｒｆ電力制御 Pending JP2021532674A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US16/050,984 2018-07-31
US16/050,984 US20200044612A1 (en) 2018-07-31 2018-07-31 Transmitter dynamic rf power control via vswr detection for wireless radios
PCT/US2019/042184 WO2020028042A1 (en) 2018-07-31 2019-07-17 Transmitter dynamic rf power control via vswr detection for wireless radios

Publications (3)

Publication Number Publication Date
JP2021532674A true JP2021532674A (ja) 2021-11-25
JP2021532674A5 JP2021532674A5 (https=) 2022-06-24
JPWO2020028042A5 JPWO2020028042A5 (https=) 2022-06-24

Family

ID=69229362

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021504815A Pending JP2021532674A (ja) 2018-07-31 2019-07-17 無線通信機に対するｖｓｗｒ検出を介した送信機の動的ｒｆ電力制御

Country Status (6)

Country Link
US (1) US20200044612A1 (https=)
EP (1) EP3830964A4 (https=)
JP (1) JP2021532674A (https=)
KR (1) KR20210027438A (https=)
CN (1) CN112534725A (https=)
WO (1) WO2020028042A1 (https=)

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CN115987315A (zh) * 2021-10-12 2023-04-18 中兴通讯股份有限公司 射频电路、终端设备的控制方法、终端设备及存储介质
US12537555B2 (en) 2021-10-28 2026-01-27 Apple Inc. Systems and methods for configuring transmission power level based on body proximity
US12418325B2 (en) * 2021-12-23 2025-09-16 Intel Corporation Apparatus, system and method of body proximity sensing
US20230223972A1 (en) * 2022-01-10 2023-07-13 Mediatek Inc. Communication system and method for sar reduction
EP4465540A4 (en) 2022-03-07 2025-06-25 Samsung Electronics Co., Ltd ELECTRONIC WIRELESS TRANSMISSION CONTROL DEVICE AND OPERATING METHOD THEREOF
CN116846418A (zh) * 2022-03-24 2023-10-03 Oppo广东移动通信有限公司 比吸收率调节电路、方法和通信设备
CN114710827A (zh) * 2022-03-30 2022-07-05 Oppo广东移动通信有限公司 功率调整方法、装置、终端、存储介质和计算机程序产品
EP4340235A4 (en) * 2022-07-05 2024-10-16 Samsung Electronics Co., Ltd. Electronic device and method for detecting object
CN115085755B (zh) * 2022-08-23 2023-01-24 荣耀终端有限公司 终端天线的控制方法和装置
CN115664453B (zh) * 2022-10-26 2025-09-23 维沃移动通信有限公司 射频电路、控制方法及装置、电子设备和可读存储介质
EP4394436A1 (en) * 2022-12-30 2024-07-03 Nxp B.V. Radar power calibration with mismatch compensation
US20250030446A1 (en) * 2023-07-19 2025-01-23 Mediatek Inc. Method and electronic device for time-averaged specific absorption rate (ta-sar) optimization

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Also Published As

Publication number Publication date
WO2020028042A1 (en) 2020-02-06
CN112534725A (zh) 2021-03-19
EP3830964A1 (en) 2021-06-09
EP3830964A4 (en) 2022-04-20
US20200044612A1 (en) 2020-02-06
KR20210027438A (ko) 2021-03-10

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