FI88564C - Styrbar hoegfrekvensdaempare - Google Patents

Styrbar hoegfrekvensdaempare

Info

Publication number
FI88564C
FI88564C FI910188A FI910188A FI88564C FI 88564 C FI88564 C FI 88564C FI 910188 A FI910188 A FI 910188A FI 910188 A FI910188 A FI 910188A FI 88564 C FI88564 C FI 88564C
Authority
FI
Finland
Prior art keywords
high frequency
controllable high
frequency damper
damper
controllable
Prior art date
Application number
FI910188A
Other languages
English (en)
Swedish (sv)
Other versions
FI910188A7 (fi
FI910188A0 (fi
FI88564B (fi
Inventor
Jouni Verronen
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 FI910188A priority Critical patent/FI88564C/fi
Publication of FI910188A0 publication Critical patent/FI910188A0/fi
Priority to US07/817,777 priority patent/US5204643A/en
Priority to JP4004210A priority patent/JPH0590868A/ja
Publication of FI910188A7 publication Critical patent/FI910188A7/fi
Application granted granted Critical
Publication of FI88564B publication Critical patent/FI88564B/fi
Publication of FI88564C publication Critical patent/FI88564C/fi

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/24—Frequency- independent attenuators
    • H03H7/25—Frequency- independent attenuators comprising an element controlled by an electric or magnetic variable
    • H03H7/253—Frequency- independent attenuators comprising an element controlled by an electric or magnetic variable the element being a diode
    • H03H7/255—Frequency- independent attenuators comprising an element controlled by an electric or magnetic variable the element being a diode the element being a PIN diode
FI910188A 1991-01-14 1991-01-14 Styrbar hoegfrekvensdaempare FI88564C (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI910188A FI88564C (fi) 1991-01-14 1991-01-14 Styrbar hoegfrekvensdaempare
US07/817,777 US5204643A (en) 1991-01-14 1992-01-08 Controllable high-frequency attenuator
JP4004210A JPH0590868A (ja) 1991-01-14 1992-01-13 制御可能な減衰器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI910188A FI88564C (fi) 1991-01-14 1991-01-14 Styrbar hoegfrekvensdaempare
FI910188 1991-01-14

Publications (4)

Publication Number Publication Date
FI910188A0 FI910188A0 (fi) 1991-01-14
FI910188A7 FI910188A7 (fi) 1992-07-15
FI88564B FI88564B (fi) 1993-02-15
FI88564C true FI88564C (fi) 1993-05-25

Family

ID=8531731

Family Applications (1)

Application Number Title Priority Date Filing Date
FI910188A FI88564C (fi) 1991-01-14 1991-01-14 Styrbar hoegfrekvensdaempare

Country Status (3)

Country Link
US (1) US5204643A (fi)
JP (1) JPH0590868A (fi)
FI (1) FI88564C (fi)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3134031B2 (ja) * 1993-12-27 2001-02-13 三菱電機株式会社 アッテネータ
DE9419377U1 (de) * 1994-12-06 1995-02-09 Spaun-electronic GmbH, 78224 Singen Elektronisch veränderbares Dämpfungsglied für HF-Signale oberhalb etwa 1 MHz
US5565823A (en) * 1994-12-21 1996-10-15 Lucent Technologies Inc. Voltage controlled attenuator using PN diodes
FI101505B1 (fi) * 1995-05-10 1998-06-30 Nokia Mobile Phones Ltd Menetelmä suuntakytkimellä toteutetun tehonmittauksen parantamiseksi pienillä tehotasoilla
US5752172A (en) * 1996-08-16 1998-05-12 Nokia Mobile Phones Limited Distributed transmitter output power control circuit and method for a radio telephone
FI963389L (fi) * 1996-08-30 1998-03-01 Nokia Mobile Phones Ltd Käsipuhelimen opastusjärjestelmä
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
US6297709B1 (en) * 1999-07-14 2001-10-02 Nokia Telecommunications Oy Temperature compensated variable attenuator
KR100480071B1 (ko) * 2002-11-12 2005-03-31 엘지전자 주식회사 가변 감쇠기
US7276989B2 (en) * 2005-06-02 2007-10-02 Raytheon Company Attenuator circuit comprising a plurality of quarter wave transformers and lump element resistors
US7324060B2 (en) * 2005-09-01 2008-01-29 Raytheon Company Power divider having unequal power division and antenna array feed network using such unequal power dividers
US8170604B2 (en) * 2006-06-27 2012-05-01 Motorola Mobility, Inc. Method and system for managing communications for a multi-mode communications device
US20080102874A1 (en) * 2006-10-28 2008-05-01 Motorola, Inc. Control of transmit power of a second transmitter based on antenna loading parameters measured on a first transmitter
US8665778B2 (en) * 2006-11-30 2014-03-04 Motorola Mobility Llc Monitoring and control of transmit power in a multi-modem wireless communication device
US8059702B2 (en) * 2006-11-30 2011-11-15 Motorola Mobility, Inc. Monitoring multiple modem transmission in a communication device
US8744519B2 (en) * 2006-12-14 2014-06-03 Motorola Mobility Llc Multimodal phone data session management enhancement that alleviates dual transmission problems
US8195250B2 (en) * 2008-04-30 2012-06-05 Motorola Mobility, Inc. Method and apparatus for controlling power among modems in a multi-mode mobile communication device
JP5287286B2 (ja) * 2009-01-21 2013-09-11 富士通株式会社 バイアス回路
US9602091B1 (en) 2015-12-03 2017-03-21 Peregrine Semiconductor Corporation Low phase shift, high frequency attenuator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019160A (en) * 1975-12-05 1977-04-19 Gte Sylvania Incorporated Signal attenuator circuit for TV tuner
US4097827A (en) * 1977-02-04 1978-06-27 The United States Of America As Represented By The Secretary Of The Air Force Constant impedance, constant phase pin diode with attenuator
JPH0237725B2 (ja) * 1981-11-24 1990-08-27 Pioneer Electronic Corp Kahengensuiki
JPS60260220A (ja) * 1984-06-06 1985-12-23 Sharp Corp Ｒｆ可変減衰回路
JPS6417408A (en) * 1987-07-13 1989-01-20 Oki Electric Ind Co Ltd Manufacture of ceramic coil

Also Published As

Publication number Publication date
FI910188A7 (fi) 1992-07-15
US5204643A (en) 1993-04-20
JPH0590868A (ja) 1993-04-09
FI910188A0 (fi) 1991-01-14
FI88564B (fi) 1993-02-15

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Legal Events

Date Code Title Description
FG Patent granted

Owner name: NOKIA MATKAPUHELIMET OY

BB Publication of examined application