DE68928459D1 - Einen Synthesierer verwendender Frequenzmodulator - Google Patents

Einen Synthesierer verwendender Frequenzmodulator

Info

Publication number
DE68928459D1
DE68928459D1 DE68928459T DE68928459T DE68928459D1 DE 68928459 D1 DE68928459 D1 DE 68928459D1 DE 68928459 T DE68928459 T DE 68928459T DE 68928459 T DE68928459 T DE 68928459T DE 68928459 D1 DE68928459 D1 DE 68928459D1
Authority
DE
Germany
Prior art keywords
synthesizer
frequency modulator
modulator
frequency
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.)
Expired - Fee Related
Application number
DE68928459T
Other languages
English (en)
Other versions
DE68928459T2 (de
Inventor
Tatsuru C O Nec Corpora Kojima
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Publication of DE68928459D1 publication Critical patent/DE68928459D1/de
Application granted granted Critical
Publication of DE68928459T2 publication Critical patent/DE68928459T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/095—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation to the loop in front of the voltage controlled oscillator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/18—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance
    • H03B5/1841—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a strip line resonator
    • H03B5/1847—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a strip line resonator the active element in the amplifier being a semiconductor device
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
    • H03C2200/0004—Circuit elements of modulators
    • H03C2200/0033—Transmission lines, e.g. striplines, microstrips or coplanar lines
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
    • H03C2200/0037—Functional aspects of modulators
    • H03C2200/005—Modulation sensitivity
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
    • H03C2200/0037—Functional aspects of modulators
    • H03C2200/0079—Measures to linearise modulation or reduce distortion of modulation characteristics
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/06—Means for changing frequency deviation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
    • H03C3/22—Angle modulation by means of variable impedance by means of a variable reactive element the element being a semiconductor diode, e.g. varicap diode
DE68928459T 1988-08-12 1989-08-11 Einen Synthesierer verwendender Frequenzmodulator Expired - Fee Related DE68928459T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63201276A JPH0250606A (ja) 1988-08-12 1988-08-12 周波数シンセサイザ

Publications (2)

Publication Number Publication Date
DE68928459D1 true DE68928459D1 (de) 1998-01-08
DE68928459T2 DE68928459T2 (de) 1998-04-02

Family

ID=16438282

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68928459T Expired - Fee Related DE68928459T2 (de) 1988-08-12 1989-08-11 Einen Synthesierer verwendender Frequenzmodulator

Country Status (4)

Country Link
US (1) US5027429A (de)
EP (1) EP0357996B1 (de)
JP (1) JPH0250606A (de)
DE (1) DE68928459T2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5175884A (en) * 1990-06-01 1992-12-29 Motorola, Inc. Voltage controlled oscillator with current control
JPH05508526A (ja) * 1991-04-15 1993-11-25 モトローラ・インコーポレイテッド 発振器濾過および増幅装置
US5130674A (en) * 1991-09-30 1992-07-14 Motorola, Inc. Voltage controlled oscilator having controlled bias voltage, AGC and output amplifier
FI914763A0 (fi) * 1991-10-09 1991-10-09 Nokia Mobile Phones Ltd Kompensering av en spaenningsstyrd olineaer komponent i en radiotelefon.
FI90169C (fi) * 1991-12-31 1993-12-27 Nokia Mobile Phones Ltd Foerfarande och kopplingsarrangemang foer att alstra en modulerad signal
FR2719728A1 (fr) * 1994-05-04 1995-11-10 Philips Composants Diviseur de fréquence, synthétiseur de fréquence comportant un tel diviseur et radiotéléphone comportant un tel synthétiseur.
US5493715A (en) * 1994-08-01 1996-02-20 Motorola, Inc. Multi-range voltage controlled resonant circuit
US5477197A (en) * 1994-10-24 1995-12-19 At&T Corp. Voltage controlled oscillator with improved voltage versus frequency characteristic
US5881374A (en) * 1997-01-31 1999-03-09 Telefonaktiebolaget L M Ericsson (Publ) Circuitry and method for detecting frequency deviation caused by aging of an oscillator
US6058294A (en) * 1998-03-24 2000-05-02 Microchip Technology Incorporated Adjustable frequency stabilizing internal chip capacitor system
US7609123B2 (en) * 2006-12-12 2009-10-27 Panasonic Corporation Direct modulation type voltage-controlled oscillator using MOS varicap
US9197403B2 (en) 2012-07-20 2015-11-24 Freescale Semiconductor, Inc. Calibration arrangement for frequency synthesizers

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2298409A (en) * 1940-06-19 1942-10-13 Rca Corp Multiplexing
US2640193A (en) * 1951-02-27 1953-05-26 American Telephone & Telegraph Radiant energy signaling system
US4117422A (en) * 1977-12-27 1978-09-26 Motorola, Inc. Circuit for compensating vco nonlinearities in frequency modulated phase-locked loops and method thereof
JPS54111403U (de) * 1978-01-24 1979-08-06
JPS58105631A (ja) * 1981-12-17 1983-06-23 Nec Corp 周波数変調送信機
US4503402A (en) * 1982-08-19 1985-03-05 General Electric Company Voltage controlled oscillator having approximately constant modulation sensitivity
US4477781A (en) * 1983-02-17 1984-10-16 The United States Of America As Represented By The Secretary Of The Navy Combined microwave parallel amplifier- RF attenuator/modulator
US4510465A (en) * 1983-08-12 1985-04-09 Motorola, Inc. Linear gain voltage controlled oscillator with modulation compensation
JPS6178213A (ja) * 1984-09-25 1986-04-21 Nippon Telegr & Teleph Corp <Ntt> 電力増幅装置
JPS61161006A (ja) * 1985-01-08 1986-07-21 Nec Corp 変調回路
JPH0349458Y2 (de) * 1985-03-14 1991-10-22
JPH062333Y2 (ja) * 1986-05-07 1994-01-19 アルプス電気株式会社 変調器付電圧制御発振器
JPS6372204A (ja) * 1986-09-12 1988-04-01 Matsushita Electric Ind Co Ltd 電圧制御発振器の変調感度補正回路
JPH0744408B2 (ja) * 1987-01-30 1995-05-15 日本電信電話株式会社 電力合成形電力増幅装置

Also Published As

Publication number Publication date
JPH0250606A (ja) 1990-02-20
US5027429A (en) 1991-06-25
EP0357996A1 (de) 1990-03-14
DE68928459T2 (de) 1998-04-02
EP0357996B1 (de) 1997-11-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee