CN112534725A - 通过对无线电的vswr检测进行的发射器动态rf功率控制 - Google Patents

通过对无线电的vswr检测进行的发射器动态rf功率控制 Download PDF

Info

Publication number
CN112534725A
CN112534725A CN201980050044.6A CN201980050044A CN112534725A CN 112534725 A CN112534725 A CN 112534725A CN 201980050044 A CN201980050044 A CN 201980050044A CN 112534725 A CN112534725 A CN 112534725A
Authority
CN
China
Prior art keywords
vswr
power amplifier
antenna
identifying
power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201980050044.6A
Other languages
English (en)
Chinese (zh)
Inventor
本尼·约瑟夫·博洛尼亚
托德·W·斯蒂格沃尔德
埃夫斯特拉蒂奥斯·斯卡菲达斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Advanced Micro Devices Inc
Original Assignee
Advanced Micro Devices Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Advanced Micro Devices Inc filed Critical Advanced Micro Devices Inc
Publication of CN112534725A publication Critical patent/CN112534725A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • 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
    • 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
    • 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
    • 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)
CN201980050044.6A 2018-07-31 2019-07-17 通过对无线电的vswr检测进行的发射器动态rf功率控制 Pending CN112534725A (zh)

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 (1)

Publication Number Publication Date
CN112534725A true CN112534725A (zh) 2021-03-19

Family

ID=69229362

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201980050044.6A Pending CN112534725A (zh) 2018-07-31 2019-07-17 通过对无线电的vswr检测进行的发射器动态rf功率控制

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=)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN115085755A (zh) * 2022-08-23 2022-09-20 荣耀终端有限公司 终端天线的控制方法和装置
CN115412183A (zh) * 2021-05-27 2022-11-29 苹果公司 具有非静态对象检测功能的电子设备
CN115664453A (zh) * 2022-10-26 2023-01-31 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
CN116056199A (zh) * 2021-10-28 2023-05-02 苹果公司 用于基于身体接近来配置发射功率电平的系统和方法

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11784674B2 (en) * 2020-03-24 2023-10-10 Qualcomm Incorporated Calibration of open space for an antenna array module
KR102857561B1 (ko) * 2020-07-01 2025-09-09 삼성전자주식회사 객체의 근접 여부를 감지하는 방법 및 이를 지원하는 전자 장치
US12463675B2 (en) 2021-08-05 2025-11-04 Samsung Electronics Co., Ltd. Radio frequency exposure estimation with radar for mobile devices
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
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
EP4340235A4 (en) * 2022-07-05 2024-10-16 Samsung Electronics Co., Ltd. Electronic device and method for detecting object
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6960956B2 (en) * 2001-01-12 2005-11-01 Telefonatiebolaget L.M. Ericsson Telefonplan Apparatus and methods for monitoring and controlling power amplifier linearity using detected fundamental and harmonic components
US20130210477A1 (en) * 2012-02-15 2013-08-15 Microchip Technology Incorporated Proximity Detection Using an Antenna and Directional Coupler Switch
CN105765482A (zh) * 2013-11-26 2016-07-13 惠普发展公司，有限责任合伙企业 调节信号源的发射功率
US20160211928A1 (en) * 2014-01-17 2016-07-21 Viasat, Inc. Enhanced voltage standing wave ratio measurement
CN106471758A (zh) * 2014-06-30 2017-03-01 微软技术许可有限责任公司 使用天线反馈检测临近度

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5564086A (en) * 1993-11-29 1996-10-08 Motorola, Inc. Method and apparatus for enhancing an operating characteristic of a radio transmitter
JP2555564B2 (ja) * 1994-06-23 1996-11-20 日本電気株式会社 並列合成方式の中波送信機
US6233438B1 (en) * 1998-03-26 2001-05-15 Ericsson Inc. Wide-range power control systems and methods for radio frequency transmitters and mobile radiotelephones
GB2346292B (en) * 1999-01-30 2003-06-11 Motorola Ltd Voltage standing-wave ratio measurement apparatus and use in a cellular communications system
US6310579B1 (en) * 2000-05-12 2001-10-30 Radio Frequency Systems, Inc. Method and apparatus for calibrating antenna apparatus and testing an antenna connected thereto
US8744384B2 (en) * 2000-07-20 2014-06-03 Blackberry Limited Tunable microwave devices with auto-adjusting matching circuit
US6845126B2 (en) * 2001-01-26 2005-01-18 Telefonaktiebolaget L.M. Ericsson (Publ) System and method for adaptive antenna impedance matching
US6710651B2 (en) * 2001-10-22 2004-03-23 Kyocera Wireless Corp. Systems and methods for controlling output power in a communication device
US7071776B2 (en) * 2001-10-22 2006-07-04 Kyocera Wireless Corp. Systems and methods for controlling output power in a communication device
US6657595B1 (en) * 2002-05-09 2003-12-02 Motorola, Inc. Sensor-driven adaptive counterpoise antenna system
FI114057B (fi) * 2002-10-18 2004-07-30 Nokia Corp Menetelmä ja järjestely kuorman epäsovituksen havaitsemiseksi, sekä sellaista käyttävä radiolaite
EP1696558A1 (en) * 2005-02-25 2006-08-30 STMicroelectronics S.r.l. Protection of output stage transistor of an RF power amplifier
US7590395B2 (en) * 2006-07-27 2009-09-15 Harris Corporation Power management scheme for software-defined radios
WO2008050440A1 (en) * 2006-10-26 2008-05-02 Panasonic Corporation Power amplifier
JP2008147934A (ja) * 2006-12-08 2008-06-26 Hitachi Kokusai Electric Inc Ｔｄｄ方式の無線送受信装置
US8442456B2 (en) * 2007-08-09 2013-05-14 Freescale Semiconductor, Inc. Wireless communication unit, integrated circuit and method of power control therein
US9136914B2 (en) * 2009-01-22 2015-09-15 Qualcomm Incorporated Impedance change detection in wireless power transmission
JP2010206357A (ja) * 2009-03-02 2010-09-16 Fujitsu Ltd 無線送受信装置
US8963611B2 (en) * 2009-06-19 2015-02-24 Qualcomm Incorporated Power and impedance measurement circuits for a wireless communication device
US8644778B2 (en) * 2011-01-21 2014-02-04 Nokia Corporation Usage of measurement antenna transmitting communication signal for power adjustment in wireless device
WO2012177939A2 (en) * 2011-06-21 2012-12-27 Google Inc. Controlling mtd antenna vswr and coupling for sar control
WO2014063736A1 (en) * 2012-10-25 2014-05-01 Nokia Solutions And Networks Oy Distance to vswr fault measurement
US9325355B2 (en) * 2013-02-14 2016-04-26 Blackberry Limited Methods and apparatus for performing impedance matching
KR20160027415A (ko) * 2014-08-29 2016-03-10 주식회사 케이엠더블유 기지국 안테나의 정재파비 제어 방법
DE102014119259A1 (de) * 2014-12-19 2016-06-23 Intel Corporation Eine Vorrichtung zum Bereitstellen eines Steuersignals für eine variable Impedanzanpassungsschaltung und ein Verfahren dafür
US9935378B2 (en) * 2015-10-30 2018-04-03 Te Connectivity Corporation Antenna apparatus configured to reduce radio-frequency exposure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6960956B2 (en) * 2001-01-12 2005-11-01 Telefonatiebolaget L.M. Ericsson Telefonplan Apparatus and methods for monitoring and controlling power amplifier linearity using detected fundamental and harmonic components
US20130210477A1 (en) * 2012-02-15 2013-08-15 Microchip Technology Incorporated Proximity Detection Using an Antenna and Directional Coupler Switch
CN105765482A (zh) * 2013-11-26 2016-07-13 惠普发展公司，有限责任合伙企业 调节信号源的发射功率
US20160211928A1 (en) * 2014-01-17 2016-07-21 Viasat, Inc. Enhanced voltage standing wave ratio measurement
CN106471758A (zh) * 2014-06-30 2017-03-01 微软技术许可有限责任公司 使用天线反馈检测临近度

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115412183A (zh) * 2021-05-27 2022-11-29 苹果公司 具有非静态对象检测功能的电子设备
CN115412183B (zh) * 2021-05-27 2026-04-07 苹果公司 具有非静态对象检测功能的电子设备
CN116056199A (zh) * 2021-10-28 2023-05-02 苹果公司 用于基于身体接近来配置发射功率电平的系统和方法
US12537555B2 (en) 2021-10-28 2026-01-27 Apple Inc. Systems and methods for configuring transmission power level based on body proximity
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
CN115085755A (zh) * 2022-08-23 2022-09-20 荣耀终端有限公司 终端天线的控制方法和装置
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
CN115664453A (zh) * 2022-10-26 2023-01-31 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

Also Published As

Publication number Publication date
JP2021532674A (ja) 2021-11-25
WO2020028042A1 (en) 2020-02-06
EP3830964A1 (en) 2021-06-09
EP3830964A4 (en) 2022-04-20
US20200044612A1 (en) 2020-02-06
KR20210027438A (ko) 2021-03-10

Similar Documents

Publication Publication Date Title
CN112534725A (zh) 通过对无线电的vswr检测进行的发射器动态rf功率控制
US10224974B2 (en) Proximity-independent SAR mitigation
CN110089163B (zh) 确定发射机天线与人体的接近以限制发射机输出功率
CN103312363B (zh) 具有可调节增益的近场通信装置
CA2847238C (en) Wireless dongle angular position sensor
US9408160B2 (en) Device and method for restricting transmission output in a portable terminal
US11031966B2 (en) Ultrasonic proximity sensing for SAR mitigation
TW201534158A (zh) 用於感測及動態傳輸的天線耦合
US20120162636A1 (en) Proximity detector including anti-falsing mechanism
CN106646438B (zh) 用于使用相位和rssi差异确定近场定位的方法和设备
JP2018509063A5 (https=)
US11309929B2 (en) Output power adjustments based on sensors
US20130157598A1 (en) Systems and Methods for Power Sensing and Antenna Tuning
CN105765482A (zh) 调节信号源的发射功率
KR102448560B1 (ko) 유도성 커플링을 통해 통신하는 통신 디바이스를 동작시키는 방법 및 시스템
KR101349430B1 (ko) 임피던스 정합 장치 및 그 방법
TW202131727A (zh) 無線電裝置及用於偵測使用者的近接度的方法
JP2016202222A (ja) 疲労検出装置
US20050104768A1 (en) E-field monitor for pulsed signals
JP2023038808A5 (https=)
KR101283059B1 (ko) 안테나 및 이를 포함하는 임피던스 매칭 장치
KR20140112319A (ko) 자동 정합 회로를 근거로 한 rfid 리더 및 그의 제어 방법
WO2019078837A1 (en) ANTENNAS FOR DETERMINING THE PRESENCE OF AN OBJECT
US10135497B2 (en) Near field communication device
KR20190055580A (ko) 송신 전력 제어가 가능한 무선 전력 전송 장치

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20210319

WD01 Invention patent application deemed withdrawn after publication