FI930632A - Kytkentä lähetinvahvistimen tehon säätämiseksi - Google Patents

Kytkentä lähetinvahvistimen tehon säätämiseksi Download PDF

Info

Publication number
FI930632A
FI930632A FI930632A FI930632A FI930632A FI 930632 A FI930632 A FI 930632A FI 930632 A FI930632 A FI 930632A FI 930632 A FI930632 A FI 930632A FI 930632 A FI930632 A FI 930632A
Authority
FI
Finland
Prior art keywords
transceiver
switching
adjust
power
Prior art date
Application number
FI930632A
Other languages
English (en)
Swedish (sv)
Other versions
FI930632A0 (fi
Inventor
Osmo Kukkonen
Original Assignee
Nokia Mobile Phones Ltd
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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Priority to FI930632A priority Critical patent/FI930632A/fi
Publication of FI930632A0 publication Critical patent/FI930632A0/fi
Priority to EP94300792A priority patent/EP0611100A1/en
Priority to US08/193,282 priority patent/US5434537A/en
Publication of FI930632A publication Critical patent/FI930632A/fi

Links

Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/10—Arrangements for measuring electric power or power factor by using square-law characteristics of circuit elements, e.g. diodes, to measure power absorbed by loads of known impedance
    • G01R21/12—Arrangements for measuring electric power or power factor by using square-law characteristics of circuit elements, e.g. diodes, to measure power absorbed by loads of known impedance in circuits having distributed constants

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmitters (AREA)
FI930632A 1993-02-12 1993-02-12 Kytkentä lähetinvahvistimen tehon säätämiseksi FI930632A (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI930632A FI930632A (fi) 1993-02-12 1993-02-12 Kytkentä lähetinvahvistimen tehon säätämiseksi
EP94300792A EP0611100A1 (en) 1993-02-12 1994-02-02 Circuit for measuring the output power from an amplifier
US08/193,282 US5434537A (en) 1993-02-12 1994-02-08 Circuit for measuring the output power from an amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI930632A FI930632A (fi) 1993-02-12 1993-02-12 Kytkentä lähetinvahvistimen tehon säätämiseksi

Publications (2)

Publication Number Publication Date
FI930632A0 FI930632A0 (fi) 1993-02-12
FI930632A true FI930632A (fi) 1994-08-13

Family

ID=8537366

Family Applications (1)

Application Number Title Priority Date Filing Date
FI930632A FI930632A (fi) 1993-02-12 1993-02-12 Kytkentä lähetinvahvistimen tehon säätämiseksi

Country Status (3)

Country Link
US (1) US5434537A (fi)
EP (1) EP0611100A1 (fi)
FI (1) FI930632A (fi)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI97179C (fi) * 1994-06-15 1996-10-25 Nokia Mobile Phones Ltd Pulssitetun lähettimen lähtötehon säätö ja tehon verhokäyrän muotoilu
DE4434903A1 (de) * 1994-09-29 1996-04-11 Hirschmann Richard Gmbh Co Schaltungsanordnung für die Satellitenkommunikation
FI105865B (fi) * 1994-11-14 2000-10-13 Nokia Mobile Phones Ltd Menetelmä ja kytkentä radiolaitteen lähetinsignaalin tehon säätämiseksi ja linearisoimiseksi
GB2296145B (en) * 1994-12-15 1999-09-22 Nokia Mobile Phones Ltd Radio transmitters and methods of operation
US5678209A (en) * 1995-03-31 1997-10-14 Lucent Technologies Inc. Transmit power level detection circuit with enhanced gain characteristics
FI101505B (fi) * 1995-05-10 1998-06-30 Nokia Mobile Phones Ltd Menetelmä suuntakytkimellä toteutetun tehonmittauksen parantamiseksi p ienillä tehotasoilla
US6434374B1 (en) * 1996-03-29 2002-08-13 Thomson Licensing S.A. Apparatus for controlling the conversion gain of a down converter
US5752172A (en) * 1996-08-16 1998-05-12 Nokia Mobile Phones Limited Distributed transmitter output power control circuit and method for a radio telephone
FI963389A (fi) * 1996-08-30 1998-03-01 Nokia Mobile Phones Ltd Käsipuhelimen opastusjärjestelmä
GB2318004A (en) * 1996-10-01 1998-04-08 Nokia Mobile Phones Ltd A diode detector
FI106759B (fi) 1996-11-13 2001-03-30 Nokia Mobile Phones Ltd Matkaviestimen lähetystehon rajoitinjärjestelmä
US6173160B1 (en) 1996-11-18 2001-01-09 Nokia Mobile Phones Limited Mobile station having drift-free pulsed power detection method and apparatus
FI108177B (fi) 1997-01-03 2001-11-30 Nokia Mobile Phones Ltd Matkaviestinlaitteiden lähetin
US5884149A (en) * 1997-02-13 1999-03-16 Nokia Mobile Phones Limited Mobile station having dual band RF detector and gain control
DE19705735A1 (de) * 1997-02-14 1998-08-20 Nokia Mobile Phones Ltd Verfahren und Vorrichtung zur Inspektion wenigstens eines Antennenzweigs, insbesondere in einem Fahrzeug
FI105611B (fi) * 1998-03-13 2000-09-15 Nokia Mobile Phones Ltd Radiotajuusvahvistimet
GB9811381D0 (en) 1998-05-27 1998-07-22 Nokia Mobile Phones Ltd Predistortion control for power reduction
GB9811382D0 (en) 1998-05-27 1998-07-22 Nokia Mobile Phones Ltd A transmitter
GB2339113B (en) 1998-06-30 2003-05-21 Nokia Mobile Phones Ltd Data transmission in tdma system
DE69838212T3 (de) * 1998-07-28 2019-03-14 Ipcom Gmbh & Co. Kg Mobiltelefon
US6321074B1 (en) * 1999-02-18 2001-11-20 Itron, Inc. Apparatus and method for reducing oscillator frequency pulling during AM modulation
JP2000286915A (ja) * 1999-03-31 2000-10-13 Toshiba Corp 信号変調回路及び信号変調方法
US6291982B1 (en) * 1999-04-09 2001-09-18 Agilent Technologies, Inc. True average wide dynamic range power sensor
US6370364B1 (en) 1999-06-22 2002-04-09 Nokia Mobile Phones, Ltd. Mobile station having power control loop offset alignment without requiring RF power measurement
DE19964024A1 (de) * 1999-12-30 2001-07-05 Nokia Mobile Phones Ltd Temperaturkompensierte Diodengleichrichterschaltung für einen HF-Pegelregler
US6600307B2 (en) * 2000-03-02 2003-07-29 Sarnoff Corporation Method and apparatus for measuring true transmitted power using a broadband dual directional coupler
US6917245B2 (en) 2000-09-12 2005-07-12 Silicon Laboratories, Inc. Absolute power detector
US6549071B1 (en) * 2000-09-12 2003-04-15 Silicon Laboratories, Inc. Power amplifier circuitry and method using an inductance coupled to power amplifier switching devices
US6711389B2 (en) * 2001-02-16 2004-03-23 Telefonaktiebolaget L.M. Ericsson Power controller for a mobile terminal
US6657425B2 (en) * 2001-06-26 2003-12-02 Koninklijke Philips Electronics N.V. Power measurement circuit including harmonic filter
US6828859B2 (en) * 2001-08-17 2004-12-07 Silicon Laboratories, Inc. Method and apparatus for protecting devices in an RF power amplifier
US6894565B1 (en) * 2002-12-03 2005-05-17 Silicon Laboratories, Inc. Fast settling power amplifier regulator
DE10260749B4 (de) * 2002-12-23 2012-03-22 Atmel Automotive Gmbh Hochfrequenz-Leistungsdetektor mit dBm-linearer Kennlinie und dessen Verwendung zur Regelung der Leistung einer elektrischen HF-Schwingung
US6897730B2 (en) * 2003-03-04 2005-05-24 Silicon Laboratories Inc. Method and apparatus for controlling the output power of a power amplifier
US6894476B2 (en) * 2003-05-15 2005-05-17 Skyworks Solutions, Inc. Efficient coupler detector circuit with reduced harmonic distortion
US7392021B2 (en) * 2005-08-03 2008-06-24 M/A-Com, Inc. Apparatus, system, and method for measuring power delivered to a load
US8471550B2 (en) 2010-05-05 2013-06-25 Javelin Semiconductor Delivered power detection for power amplifiers and related systems and methods
US10014826B2 (en) * 2015-12-10 2018-07-03 Analog Devices, Inc. Apparatus and methods for power enhancement of self-biased distributed amplifiers with gate bias networks
US10230336B2 (en) 2016-11-22 2019-03-12 Infineon Technologies Ag RF power detector circuits

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6110327Y2 (fi) * 1980-01-10 1986-04-03
JPS59207750A (ja) * 1983-05-12 1984-11-24 Nippon Technical Co Ltd 受信回路
US5214393A (en) * 1990-08-20 1993-05-25 Matsushita Electric Industrial Co., Ltd. Transmission output control circuit
JPH04219001A (ja) * 1990-12-19 1992-08-10 Fujitsu Ltd マイクロ波帯増幅器
JP2871889B2 (ja) * 1991-04-16 1999-03-17 三菱電機株式会社 高周波電力増幅装置
FI92531C (fi) * 1991-07-23 1994-11-25 Nokia Mobile Phones Ltd Suurtaajuusilmaisin laajalla dynamiikalla
US5204637A (en) * 1992-04-17 1993-04-20 Hughes Aircraft Company Power detection technique for automatic amplifier power control

Also Published As

Publication number Publication date
FI930632A0 (fi) 1993-02-12
EP0611100A1 (en) 1994-08-17
US5434537A (en) 1995-07-18

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