FR1396404A - New frequency change system for multi-channel receiver - Google Patents

New frequency change system for multi-channel receiver

Info

Publication number
FR1396404A
FR1396404A FR966619A FR966619A FR1396404A FR 1396404 A FR1396404 A FR 1396404A FR 966619 A FR966619 A FR 966619A FR 966619 A FR966619 A FR 966619A FR 1396404 A FR1396404 A FR 1396404A
Authority
FR
France
Prior art keywords
frequency change
change system
new frequency
channel receiver
receiver
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.)
Expired
Application number
FR966619A
Other languages
French (fr)
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Priority to FR966619A priority Critical patent/FR1396404A/en
Priority to GB1005365A priority patent/GB1048354A/en
Application granted granted Critical
Publication of FR1396404A publication Critical patent/FR1396404A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D9/00—Demodulation or transference of modulation of modulated electromagnetic waves
    • H03D9/06—Transference of modulation using distributed inductance and capacitance
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H01Q15/22—Reflecting surfaces; Equivalent structures functioning also as polarisation filter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/18—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces
    • H01Q19/19—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface
    • H01Q19/195—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface wherein a reflecting surface acts also as a polarisation filter or a polarising device

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Aerials With Secondary Devices (AREA)
FR966619A 1964-03-09 1964-03-09 New frequency change system for multi-channel receiver Expired FR1396404A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR966619A FR1396404A (en) 1964-03-09 1964-03-09 New frequency change system for multi-channel receiver
GB1005365A GB1048354A (en) 1964-03-09 1965-03-09 Frequency changer system for multiple channel receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR966619A FR1396404A (en) 1964-03-09 1964-03-09 New frequency change system for multi-channel receiver

Publications (1)

Publication Number Publication Date
FR1396404A true FR1396404A (en) 1965-04-23

Family

ID=8825021

Family Applications (1)

Application Number Title Priority Date Filing Date
FR966619A Expired FR1396404A (en) 1964-03-09 1964-03-09 New frequency change system for multi-channel receiver

Country Status (2)

Country Link
FR (1) FR1396404A (en)
GB (1) GB1048354A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2246650A1 (en) * 1971-09-22 1973-03-29 Thomson Csf APLANATIC HIGH FREQUENCY ANTENNA

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2110003B (en) * 1981-11-19 1985-03-13 Marconi Co Ltd Antenna assemblies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2246650A1 (en) * 1971-09-22 1973-03-29 Thomson Csf APLANATIC HIGH FREQUENCY ANTENNA

Also Published As

Publication number Publication date
GB1048354A (en) 1966-11-16

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