IT1168884B - Sintetizzatore di frequenze di microonde a basso rumore - Google Patents

Sintetizzatore di frequenze di microonde a basso rumore

Info

Publication number
IT1168884B
IT1168884B IT48793/83A IT4879383A IT1168884B IT 1168884 B IT1168884 B IT 1168884B IT 48793/83 A IT48793/83 A IT 48793/83A IT 4879383 A IT4879383 A IT 4879383A IT 1168884 B IT1168884 B IT 1168884B
Authority
IT
Italy
Prior art keywords
low noise
frequency synthesizer
microwave frequency
noise microwave
synthesizer
Prior art date
Application number
IT48793/83A
Other languages
English (en)
Other versions
IT8348793A0 (it
Inventor
David D Effinger
Rochard Docter
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of IT8348793A0 publication Critical patent/IT8348793A0/it
Application granted granted Critical
Publication of IT1168884B publication Critical patent/IT1168884B/it

Links

Classifications

    • 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
    • H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
    • H03B21/01—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
    • H03B21/02—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies by plural beating, i.e. for frequency synthesis ; Beating in combination with multiplication or division of frequency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/24—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using frequency agility of carrier wave

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Radar Systems Or Details Thereof (AREA)
IT48793/83A 1982-08-02 1983-08-01 Sintetizzatore di frequenze di microonde a basso rumore IT1168884B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/404,161 US4516085A (en) 1982-08-02 1982-08-02 Microwave frequency synthesizer using plural switchable low noise oscillators

Publications (2)

Publication Number Publication Date
IT8348793A0 IT8348793A0 (it) 1983-08-01
IT1168884B true IT1168884B (it) 1987-05-20

Family

ID=23598418

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48793/83A IT1168884B (it) 1982-08-02 1983-08-01 Sintetizzatore di frequenze di microonde a basso rumore

Country Status (9)

Country Link
US (1) US4516085A (it)
EP (1) EP0116084B1 (it)
JP (1) JPS59501688A (it)
AU (1) AU562865B2 (it)
CA (1) CA1197901A (it)
DE (1) DE3373168D1 (it)
IL (1) IL69357A (it)
IT (1) IT1168884B (it)
WO (1) WO1984000648A1 (it)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4725786A (en) * 1984-07-26 1988-02-16 Comstron Corporation Full-octave direct frequency synthesizer
DE3432350A1 (de) * 1984-09-03 1986-03-13 C. Plath Gmbh Nautisch-Elektronische Technik, 2000 Hamburg Kammspektrum-oszillator
JPS6261407A (ja) * 1985-09-11 1987-03-18 Toshiba Corp 周波数切替形マイクロ波発生装置
DE3712975A1 (de) * 1987-04-16 1988-11-03 Kernforschungsanlage Juelich Verfahren und schaltungsanordnung zur digitalen einstellung einer steuerfrequenz
US5254955A (en) * 1989-08-25 1993-10-19 Anritsu Corporation Advanced phase locked loop circuit
US5122763A (en) * 1989-08-25 1992-06-16 Anritsu Corporation Frequency snythesizer for implementing generator of highly pure signals and circuit devices, such as vcq, bll and sg, used therein
FI87867C (fi) * 1991-01-09 1993-02-25 Telenokia Oy Oskillatorenhet med en saekrad frekvensstabilitet
GB2256983B (en) * 1991-06-19 1995-03-08 Marconi Instruments Ltd Microwave synthesisers
EP0595377A1 (en) * 1992-10-29 1994-05-04 MIZAR S.p.A. Frequency synthesis system for generating microwave oscillations
GB2345812B (en) * 1995-11-24 2000-09-06 Ifr Limited Signal generator
JP3921355B2 (ja) * 2001-05-08 2007-05-30 日本電波工業株式会社 周波数切替型高周波発振器
US9941840B2 (en) 2008-05-16 2018-04-10 The University Court Of The University Of St. Andrews Fast pulse generator
GB0421178D0 (en) * 2004-09-23 2004-10-27 Univ St Andrews A fast pulse generator
US8269529B2 (en) 2010-01-14 2012-09-18 Advanced Testing Technologies, Inc. Low phase noise RF signal generating system and phase noise measurement calibrating method
US20110169545A1 (en) * 2010-01-14 2011-07-14 Shahen Minassian Low phase noise rf signal generating system and method for calibrating phase noise measurement systems using same
US10931233B2 (en) * 2019-03-28 2021-02-23 Intel Corporation Resonator-based open-loop timing signal generation

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494345A (en) * 1950-01-10 Multifrequency oscillation
US2756331A (en) * 1954-04-14 1956-07-24 Harry R Foster System for obtaining high frequencies
US3227963A (en) * 1962-03-19 1966-01-04 Beckman Instruments Inc Digital frequency synthesizer having a plurality of cascaded phase-locked digit selector stages
US3248652A (en) * 1962-07-20 1966-04-26 Kruse Niels Georg Stabilized beat frequency oscillator for multi-frequency receiver
US3296549A (en) * 1962-11-29 1967-01-03 Einar C Johnson Parallel capacitor controlled variable frequency oscillator
DE1616327B1 (de) * 1968-01-20 1971-06-09 Schlumberger Overseas Frequenzsynthesegeraet
US3696306A (en) * 1970-06-05 1972-10-03 Motorola Inc Coherent jump frequency synthesizer
US4206421A (en) * 1976-09-17 1980-06-03 Siemens Aktiengesellschaft Arrangement for synchronizing a free-swinging oscillator
US4272730A (en) * 1979-04-30 1981-06-09 Itek Corporation Microwave frequency synthesizer utilizing a combination of a phase locked loop and frequency translation techniques

Also Published As

Publication number Publication date
IT8348793A0 (it) 1983-08-01
IL69357A (en) 1987-09-16
EP0116084B1 (en) 1987-08-19
US4516085A (en) 1985-05-07
EP0116084A1 (en) 1984-08-22
DE3373168D1 (en) 1987-09-24
JPS59501688A (ja) 1984-10-04
AU562865B2 (en) 1987-06-18
AU1885783A (en) 1984-02-23
WO1984000648A1 (en) 1984-02-16
CA1197901A (en) 1985-12-10

Similar Documents

Publication Publication Date Title
IT1168884B (it) Sintetizzatore di frequenze di microonde a basso rumore
DE3370733D1 (en) Microwave oscillator
IT8423674A0 (it) Composizione schermante interferenze elettromagnetiche/interferenze a radiofrequenze.
DK160030C (da) Frekvenssynthesizer
DE3382333D1 (de) Frequenzsynthesierer.
GB2159012B (en) Millimeter wave frequency synthesizer
DE3280171D1 (de) Integrierter mikrowellen-frequenzumsetzer.
DE3374828D1 (en) Frequency synthesiser
DE3483789D1 (de) Mikrowellenoszillator.
IT8622037V0 (it) Oscillatore a microonde a risuonatore dielettrico.
GB2128048B (en) Frequency synthesizer with a low-noise low-frequency output
DE3373046D1 (en) Variable frequency oscillator
GB8315296D0 (en) Frequency synthesizer
GB2127243B (en) Variable frequency oscillator
IT8348137A0 (it) Circuito di controllo per oscillatore agile in frequenza, a basso rumore
IT1172361B (it) Generatore di frequenza a microonde
GB2130827B (en) Frequency synthesizer
GB2160377B (en) Frequency synthesizers
KR840006479U (ko) 주파수 신저사이저용 전자동조 튜우너
DE68911451D1 (de) Mikrowellen-Frequenzteiler.
IT1228876B (it) Convertitore di frequenza a microonde.
KR860002065U (ko) 고주파 발진기
NO841255L (no) Mikroboelgefrekvenssyntetisator med lav stoey
DE3578286D1 (de) Frequenzteiler-schaltungsanordnung.
KR910013226U (ko) 주파수 더블러 회로