GB8615703D0 - Superheterodyne radio receiver - Google Patents

Superheterodyne radio receiver

Info

Publication number
GB8615703D0
GB8615703D0 GB868615703A GB8615703A GB8615703D0 GB 8615703 D0 GB8615703 D0 GB 8615703D0 GB 868615703 A GB868615703 A GB 868615703A GB 8615703 A GB8615703 A GB 8615703A GB 8615703 D0 GB8615703 D0 GB 8615703D0
Authority
GB
United Kingdom
Prior art keywords
radio receiver
superheterodyne radio
superheterodyne
receiver
radio
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.)
Withdrawn
Application number
GB868615703A
Other versions
GB2192104A (en
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Priority to GB08615703A priority Critical patent/GB2192104A/en
Publication of GB8615703D0 publication Critical patent/GB8615703D0/en
Publication of GB2192104A publication Critical patent/GB2192104A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H03D7/1433—Balanced arrangements with transistors using bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H03D7/1458—Double balanced arrangements, i.e. where both input signals are differential
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • 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
    • H03B2202/00—Aspects of oscillators relating to reduction of undesired oscillations
    • H03B2202/08—Reduction of undesired oscillations originated from the oscillator in circuit elements external to the oscillator by means associated with the oscillator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0001—Circuit elements of demodulators
    • H03D2200/0033—Current mirrors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0047—Offset of DC voltage or frequency
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/009—Reduction of local oscillator or RF leakage
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/12—Transference of modulation from one carrier to another, e.g. frequency-changing by means of semiconductor devices having more than two electrodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
GB08615703A 1986-06-27 1986-06-27 Superheterodyne radio receiver Withdrawn GB2192104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08615703A GB2192104A (en) 1986-06-27 1986-06-27 Superheterodyne radio receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08615703A GB2192104A (en) 1986-06-27 1986-06-27 Superheterodyne radio receiver

Publications (2)

Publication Number Publication Date
GB8615703D0 true GB8615703D0 (en) 1986-08-06
GB2192104A GB2192104A (en) 1987-12-31

Family

ID=10600185

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08615703A Withdrawn GB2192104A (en) 1986-06-27 1986-06-27 Superheterodyne radio receiver

Country Status (1)

Country Link
GB (1) GB2192104A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4979230A (en) * 1989-12-04 1990-12-18 General Instrument Corporation Up-conversion homodyne receiver for cable television converter with frequency offset to avoid adjacent channel interference
EP0932252B1 (en) * 1998-01-23 2006-04-05 Matsushita Electric Industrial Co., Ltd. Tuning demodulator for digitally modulated RF signals
GB0020527D0 (en) * 2000-08-22 2000-10-11 Mitel Semiconductor Ltd Digital tuner
US7085548B1 (en) 2001-07-13 2006-08-01 Advanced Micro Devices, Inc. Harmonic mixer
US6970687B1 (en) 2001-07-13 2005-11-29 Advanced Micro Devices, Inc. Mixer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB525404A (en) * 1939-01-20 1940-08-28 Gen Electric Co Ltd Improvements in electrical superheterodyne frequency-changers
GB636638A (en) * 1947-11-05 1950-05-03 Congreve John Banwell Improvements in or relating to telecommunication and radar systems
GB669113A (en) * 1949-06-22 1952-03-26 Nat Res Dev Improvements in or relating to automatic frequency control circuit arrangements
FR2194076B1 (en) * 1972-07-27 1976-10-29 Neo Tec Etude Applic Tech
NL7705552A (en) * 1977-05-20 1978-11-22 Philips Nv QUADRATURE TRANSPOSITION STAPLE.
NZ201230A (en) * 1981-08-31 1985-12-13 Kahn Leonard R Synchronous quadphase envelope detector
JPS61171207A (en) * 1985-01-25 1986-08-01 Nec Corp Receiver

Also Published As

Publication number Publication date
GB2192104A (en) 1987-12-31

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)