AU6960781A - Multipath fm oscillator - Google Patents

Multipath fm oscillator

Info

Publication number
AU6960781A
AU6960781A AU69607/81A AU6960781A AU6960781A AU 6960781 A AU6960781 A AU 6960781A AU 69607/81 A AU69607/81 A AU 69607/81A AU 6960781 A AU6960781 A AU 6960781A AU 6960781 A AU6960781 A AU 6960781A
Authority
AU
Australia
Prior art keywords
transistor
oscillator
resonator
base
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.)
Granted
Application number
AU69607/81A
Other versions
AU529911B2 (en
Inventor
Wilhelm Amend
Udo Kluh
Walter Pichon
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of AU6960781A publication Critical patent/AU6960781A/en
Application granted granted Critical
Publication of AU529911B2 publication Critical patent/AU529911B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H03C3/222—Angle modulation by means of variable impedance by means of a variable reactive element the element being a semiconductor diode, e.g. varicap diode using bipolar transistors
    • 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
    • H03B2200/0062—Bias and operating point
    • 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
    • H03B2200/0088—Reduction of noise
    • 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
    • H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/01—Varying the frequency of the oscillations by manual means
    • H03B2201/011—Varying the frequency of the oscillations by manual means the means being an element with a variable capacitance
    • 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
    • H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/01—Varying the frequency of the oscillations by manual means
    • H03B2201/014—Varying the frequency of the oscillations by manual means the means being associated with an element comprising distributed inductances and capacitances
    • 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
    • H03B5/02—Details
    • H03B5/04—Modifications of generator to compensate for variations in physical values, e.g. power supply, load, temperature
    • 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
    • H03B5/1805—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 coaxial resonator
    • 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
    • H03C2200/0008—Variable capacitors, e.g. a varicap, a varactor or a variable capacitance of a diode or transistor
    • 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

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Noise Elimination (AREA)
  • Circuits Of Receivers In General (AREA)
  • Transmitters (AREA)

Abstract

1. A modulatable high power transistor v.h.f. oscillator having a frequency-determining coaxial resonator (1) and a transistor (Tr1) coupled to the resonator and connected as a common collector stage (oscillator transistor), characterised in that the amplified base band signal is fed to the oscillator transistor (Tr1) in equal phase on the one hand via a bias voltage transistor (Tr2) which is connected via a capacitor (7) to the base-band signal input (BF) and which modulates the base bias voltage of the oscillator transistor (Tr1), and on the other hand is applied across a modulation diode (22) and changes the frequency of the oscillator transistor (Tr1) in the resonator (1).
AU69607/81A 1980-04-21 1981-04-16 Multipath fm oscillator Ceased AU529911B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3015272A DE3015272C2 (en) 1980-04-21 1980-04-21 Frequency-modulable transistor oscillator of high performance
DE30152728 1980-04-21

Publications (2)

Publication Number Publication Date
AU6960781A true AU6960781A (en) 1981-10-29
AU529911B2 AU529911B2 (en) 1983-06-23

Family

ID=6100557

Family Applications (1)

Application Number Title Priority Date Filing Date
AU69607/81A Ceased AU529911B2 (en) 1980-04-21 1981-04-16 Multipath fm oscillator

Country Status (7)

Country Link
EP (1) EP0038519B1 (en)
JP (1) JPS56166610A (en)
AT (1) ATE6182T1 (en)
AU (1) AU529911B2 (en)
DE (1) DE3015272C2 (en)
IN (1) IN152574B (en)
MX (1) MX151721A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2324427B (en) * 1997-04-16 2001-09-05 Motorola Gmbh Oscillator circuit and method of optimisation therefor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1093164A (en) * 1965-11-09 1967-11-29 Gen Electric Co Ltd Improvements in or relating to electric oscillators
US3535656A (en) * 1968-09-27 1970-10-20 Bendix Corp Voltage controlled solid state circuit
DE2637360C3 (en) * 1976-08-19 1980-10-09 Siemens Ag, 1000 Berlin Und 8000 Muenchen Transistor oscillator for higher frequencies

Also Published As

Publication number Publication date
DE3015272C2 (en) 1982-10-28
MX151721A (en) 1985-02-15
EP0038519B1 (en) 1984-02-08
ATE6182T1 (en) 1984-02-15
DE3015272A1 (en) 1981-10-22
AU529911B2 (en) 1983-06-23
IN152574B (en) 1984-02-11
JPS56166610A (en) 1981-12-21
EP0038519A1 (en) 1981-10-28

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