IT1015324B - Disposizione per migliorare la li mearita di un oscillatore a modula zione di frequenza - Google Patents

Disposizione per migliorare la li mearita di un oscillatore a modula zione di frequenza

Info

Publication number
IT1015324B
IT1015324B IT24320/74A IT2432074A IT1015324B IT 1015324 B IT1015324 B IT 1015324B IT 24320/74 A IT24320/74 A IT 24320/74A IT 2432074 A IT2432074 A IT 2432074A IT 1015324 B IT1015324 B IT 1015324B
Authority
IT
Italy
Prior art keywords
mearity
arrangement
improve
frequency modulated
modulated oscillator
Prior art date
Application number
IT24320/74A
Other languages
English (en)
Italian (it)
Inventor
G Endersz
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of IT1015324B publication Critical patent/IT1015324B/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
    • H03B9/00—Generation of oscillations using transit-time effects
    • H03B9/12—Generation of oscillations using transit-time effects using solid state devices, e.g. Gunn-effect devices
    • H03B9/14—Generation of oscillations using transit-time effects using solid state devices, e.g. Gunn-effect devices and elements comprising distributed inductance and capacitance
    • H03B9/141—Generation of oscillations using transit-time effects using solid state devices, e.g. Gunn-effect devices and elements comprising distributed inductance and capacitance and comprising a voltage sensitive element, e.g. varactor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/08—Modifications of modulator to linearise modulation, e.g. by feedback, and clearly applicable to more than one type of modulator
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C7/00—Modulating electromagnetic waves
    • H03C7/02—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas
    • H03C7/025—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas using semiconductor devices
    • H03C7/027—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas using semiconductor devices using diodes
    • 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
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/006—Functional aspects of oscillators
    • H03B2200/007—Generation of oscillations based on harmonic frequencies, e.g. overtone oscillators
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
IT24320/74A 1973-06-25 1974-06-24 Disposizione per migliorare la li mearita di un oscillatore a modula zione di frequenza IT1015324B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7308906A SE369134B (OSRAM) 1973-06-25 1973-06-25

Publications (1)

Publication Number Publication Date
IT1015324B true IT1015324B (it) 1977-05-10

Family

ID=20317877

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24320/74A IT1015324B (it) 1973-06-25 1974-06-24 Disposizione per migliorare la li mearita di un oscillatore a modula zione di frequenza

Country Status (7)

Country Link
JP (1) JPS5038448A (OSRAM)
CA (1) CA987750A (OSRAM)
FR (1) FR2234694B1 (OSRAM)
GB (1) GB1478896A (OSRAM)
IT (1) IT1015324B (OSRAM)
NO (1) NO132258C (OSRAM)
SE (1) SE369134B (OSRAM)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3510800A (en) * 1967-07-24 1970-05-05 Hitachi Ltd Negative resistance oscillator stabilized with fundamental and harmonic frequency cavity resonators
JPS4931823A (OSRAM) * 1972-08-02 1974-03-22

Also Published As

Publication number Publication date
GB1478896A (en) 1977-07-06
SE369134B (OSRAM) 1974-08-05
CA987750A (en) 1976-04-20
FR2234694A1 (OSRAM) 1975-01-17
NO132258C (OSRAM) 1975-10-08
DE2430431B2 (de) 1975-09-04
JPS5038448A (OSRAM) 1975-04-09
NO742305L (OSRAM) 1975-01-20
FR2234694B1 (OSRAM) 1978-03-31
DE2430431A1 (de) 1975-01-09
NO132258B (OSRAM) 1975-06-30

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