KR20210027438A - 무선 라디오용 ｖｓｗｒ 검출을 통한 송신기 동적 ｒｆ 파워 제어 - Google Patents

무선 라디오용 ｖｓｗｒ 검출을 통한 송신기 동적 ｒｆ 파워 제어 Download PDF

Info

Publication number
KR20210027438A
KR20210027438A KR1020217003119A KR20217003119A KR20210027438A KR 20210027438 A KR20210027438 A KR 20210027438A KR 1020217003119 A KR1020217003119 A KR 1020217003119A KR 20217003119 A KR20217003119 A KR 20217003119A KR 20210027438 A KR20210027438 A KR 20210027438A
Authority
KR
South Korea
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.)
Ceased
Application number
KR1020217003119A
Other languages
English (en)
Korean (ko)
Inventor
베니 죠셉 볼로그나
토드 더블유. 스테이거왈드
에프스트라티오스 스카피다스
Original Assignee
어드밴스드 마이크로 디바이시즈, 인코포레이티드
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 어드밴스드 마이크로 디바이시즈, 인코포레이티드 filed Critical 어드밴스드 마이크로 디바이시즈, 인코포레이티드
Publication of KR20210027438A publication Critical patent/KR20210027438A/ko
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • 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
    • 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
    • H04B2001/0416—Circuits with power amplifiers having gain or transmission power control

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)
KR1020217003119A 2018-07-31 2019-07-17 무선 라디오용 ｖｓｗｒ 검출을 통한 송신기 동적 ｒｆ 파워 제어 Ceased KR20210027438A (ko)

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
KR20210027438A true KR20210027438A (ko) 2021-03-10

Family

ID=69229362

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020217003119A Ceased KR20210027438A (ko) 2018-07-31 2019-07-17 무선 라디오용 ｖｓｗｒ 검출을 통한 송신기 동적 ｒｆ 파워 제어

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=)

Families Citing this family (16)

* 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
US11782151B2 (en) * 2021-05-27 2023-10-10 Apple Inc. Electronic devices with non-static object detection
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
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

Family Cites Families (31)

* 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
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
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
US9144051B2 (en) * 2012-02-15 2015-09-22 Microchip Technology Incorporated Proximity detection using an antenna and directional coupler switch
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
CN105765482B (zh) * 2013-11-26 2018-10-19 惠普发展公司，有限责任合伙企业 调节信号源的发射功率
US9461755B2 (en) * 2014-01-17 2016-10-04 Viasat, Inc. Enhanced voltage standing wave ratio measurement
US9769769B2 (en) * 2014-06-30 2017-09-19 Microsoft Technology Licensing, Llc Detecting proximity using antenna feedback
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

Also Published As

Publication number Publication date
JP2021532674A (ja) 2021-11-25
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

Similar Documents

Publication Publication Date Title
KR20210027438A (ko) 무선 라디오용 ｖｓｗｒ 검출을 통한 송신기 동적 ｒｆ 파워 제어
US10924145B2 (en) Proximity-independent SAR mitigation
JP6505116B2 (ja) 送信電力調整方法及び電子デバイス
US10484026B2 (en) Circuit arrangement and method for attenuation compensation in an antenna signal link
AU2015284555B2 (en) Detecting proximity using antenna feedback
RU2148834C1 (ru) Способ и устройство для регулирования облучения при радиопередачах
US9408160B2 (en) Device and method for restricting transmission output in a portable terminal
US8929843B2 (en) Antenna power coupler having a variable coupling factor
CN102835036A (zh) 比吸收率的发射功率管理
KR102448560B1 (ko) 유도성 커플링을 통해 통신하는 통신 디바이스를 동작시키는 방법 및 시스템
CN107040662A (zh) 一种降低辐射值的方法、系统、移动终端及可读存储介质
WO2023061001A1 (zh) 射频电路、终端设备的控制方法、终端设备及存储介质
JP2001244899A (ja) 反射影響度検出器
WO2019078837A1 (en) ANTENNAS FOR DETERMINING THE PRESENCE OF AN OBJECT
KR102150706B1 (ko) 사람들을 계수하는 방법 및 장치
KR20190055580A (ko) 송신 전력 제어가 가능한 무선 전력 전송 장치
JP2023124386A (ja) 情報処理装置、情報処理方法およびプログラム
HK40037845A (en) Proximity-independent sar mitigation
CN119341589A (zh) 平均时间特定吸收率优化的方法及电子装置
HK40023786B (en) Proximity-independent sar mitigation

Legal Events

Date Code Title Description
PA0105 International application

St.27 status event code: A-0-1-A10-A15-nap-PA0105

PG1501 Laying open of application

St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

E13-X000 Pre-grant limitation requested

St.27 status event code: A-2-3-E10-E13-lim-X000

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

A201 Request for examination
P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

PA0201 Request for examination

St.27 status event code: A-1-2-D10-D11-exm-PA0201

D13-X000 Search requested

St.27 status event code: A-1-2-D10-D13-srh-X000

D14-X000 Search report completed

St.27 status event code: A-1-2-D10-D14-srh-X000

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

E601 Decision to refuse application
PE0601 Decision on rejection of patent

St.27 status event code: N-2-6-B10-B15-exm-PE0601

P22-X000 Classification modified

St.27 status event code: A-2-2-P10-P22-nap-X000