WO2004102786A3 - Oscillator with harmonic output - Google Patents

Oscillator with harmonic output Download PDF

Info

Publication number
WO2004102786A3
WO2004102786A3 PCT/IB2004/050658 IB2004050658W WO2004102786A3 WO 2004102786 A3 WO2004102786 A3 WO 2004102786A3 IB 2004050658 W IB2004050658 W IB 2004050658W WO 2004102786 A3 WO2004102786 A3 WO 2004102786A3
Authority
WO
WIPO (PCT)
Prior art keywords
oscillator
signal
circuit
synthesizer
harmonic output
Prior art date
Application number
PCT/IB2004/050658
Other languages
French (fr)
Other versions
WO2004102786A2 (en
Inventor
Anthony Kerselaers
Original Assignee
Koninkl Philips Electronics Nv
Anthony Kerselaers
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 Koninkl Philips Electronics Nv, Anthony Kerselaers filed Critical Koninkl Philips Electronics Nv
Priority to EP04732397A priority Critical patent/EP1627465A2/en
Publication of WO2004102786A2 publication Critical patent/WO2004102786A2/en
Publication of WO2004102786A3 publication Critical patent/WO2004102786A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
    • 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more 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
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
    • H03B5/124—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance
    • H03B5/1243—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance the means comprising voltage variable capacitance diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop

Landscapes

  • Superheterodyne Receivers (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

An oscillator circuit (1) comprises an oscillator (2) and a synthesizer (3) connected in a feedback loop. The oscillator produces two signals: a first signal which is fed to the synthesizer and a second signal which constitutes the output signal of the circuit. The second signal is a harmonic of the first signal, thus allowing the synthesizer to operate at a much lower frequency than the actual output signal of the circuit. As a result, the power consumption of the circuit is reduced. The oscillator circuit is advantageously used in receivers for consumer devices.
PCT/IB2004/050658 2003-05-19 2004-05-12 Oscillator with harmonic output WO2004102786A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04732397A EP1627465A2 (en) 2003-05-19 2004-05-12 Oscillator with harmonic output

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03101406.1 2003-05-19
EP03101406 2003-05-19

Publications (2)

Publication Number Publication Date
WO2004102786A2 WO2004102786A2 (en) 2004-11-25
WO2004102786A3 true WO2004102786A3 (en) 2005-03-24

Family

ID=33442846

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/050658 WO2004102786A2 (en) 2003-05-19 2004-05-12 Oscillator with harmonic output

Country Status (2)

Country Link
EP (1) EP1627465A2 (en)
WO (1) WO2004102786A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1769578A1 (en) * 2004-07-13 2007-04-04 Koninklijke Philips Electronics N.V. Modulator comprising a dual-frequency oscillator and a synthesizer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0755113A2 (en) * 1995-06-22 1997-01-22 University Of Bristol Radio receiver and frequency generator
US5818381A (en) * 1994-06-24 1998-10-06 Roscoe C. Williams Limited Electronic viewing aid
EP0903860A1 (en) * 1997-09-17 1999-03-24 Matsushita Electric Industrial Co., Ltd. PLL frequency synthesizer
US20010004225A1 (en) * 1999-09-30 2001-06-21 Nicholls Charles T. Oscillation circuits featuring coaxial resonators

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5818381A (en) * 1994-06-24 1998-10-06 Roscoe C. Williams Limited Electronic viewing aid
EP0755113A2 (en) * 1995-06-22 1997-01-22 University Of Bristol Radio receiver and frequency generator
EP0903860A1 (en) * 1997-09-17 1999-03-24 Matsushita Electric Industrial Co., Ltd. PLL frequency synthesizer
US20010004225A1 (en) * 1999-09-30 2001-06-21 Nicholls Charles T. Oscillation circuits featuring coaxial resonators

Also Published As

Publication number Publication date
WO2004102786A2 (en) 2004-11-25
EP1627465A2 (en) 2006-02-22

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