FR865937A - Systèmes à fréquences ultra-élevées - Google Patents

Systèmes à fréquences ultra-élevées

Info

Publication number
FR865937A
FR865937A FR865937DA FR865937A FR 865937 A FR865937 A FR 865937A FR 865937D A FR865937D A FR 865937DA FR 865937 A FR865937 A FR 865937A
Authority
FR
France
Prior art keywords
ultra
high frequency
frequency systems
systems
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.)
Expired
Application number
Other languages
English (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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR865937A publication Critical patent/FR865937A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • 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
    • H03B9/01—Generation of oscillations using transit-time effects using discharge tubes
FR865937D 1939-06-08 1940-06-01 Systèmes à fréquences ultra-élevées Expired FR865937A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US278032A US2235506A (en) 1939-06-08 1939-06-08 Ultra short wave radio system

Publications (1)

Publication Number Publication Date
FR865937A true FR865937A (fr) 1941-06-18

Family

ID=23063406

Family Applications (1)

Application Number Title Priority Date Filing Date
FR865937D Expired FR865937A (fr) 1939-06-08 1940-06-01 Systèmes à fréquences ultra-élevées

Country Status (3)

Country Link
US (1) US2235506A (fr)
FR (1) FR865937A (fr)
GB (1) GB540159A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973175C (de) * 1949-02-20 1960-01-07 Siemens Ag Wanderfeldroehre mit Antenne

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1275638B (de) * 1962-08-31 1968-08-22 Charbonnages De France Elektrisch leitende Kopplungsvorrichtung
US2454766A (en) * 1943-04-24 1948-11-30 Standard Telephones Cables Ltd Broad band antenna
US2519603A (en) * 1945-03-17 1950-08-22 Reber Grote Navigational instrument
US2547414A (en) * 1945-08-08 1951-04-03 Sichak William Antenna
US2495747A (en) * 1945-11-08 1950-01-31 Standard Telephones Cables Ltd Antenna
NL72904C (fr) * 1946-01-16
US2602894A (en) * 1946-02-19 1952-07-08 Wilmer L Barrow Biconical electromagnetic horn
US2624844A (en) * 1946-03-04 1953-01-06 Jessic A Nelson Broad band antenna
US2572995A (en) * 1946-03-26 1951-10-30 Allen S Dunbar Antenna
US2564675A (en) * 1946-04-12 1951-08-21 Louis H Crook High-frequency power radiating and distributing means for antenna and heating systems
US2611865A (en) * 1946-06-19 1952-09-23 Alford Andrew Transversely gapped cylindrical antenna
US2611866A (en) * 1946-06-19 1952-09-23 Alford Andrew Cylindrical antenna
US2532919A (en) * 1947-04-21 1950-12-05 Johnson William Arthur Radio aerial system, and particularly directive aerial system
US2700104A (en) * 1949-04-29 1955-01-18 Airborne Instr Lab Inc Antenna feed system
US2689302A (en) * 1950-06-20 1954-09-14 John A Albano Zero drag vertical "i" antenna
DE1109748B (de) * 1958-12-10 1961-06-29 Siemens Ag Antennenanordnung fuer kurze und sehr kurze elektromagnetische Wellen
FR2883671A1 (fr) * 2005-03-24 2006-09-29 Groupe Ecoles Telecomm Antenne ultra-large bande offrant une grande flexibilite de conception

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973175C (de) * 1949-02-20 1960-01-07 Siemens Ag Wanderfeldroehre mit Antenne

Also Published As

Publication number Publication date
GB540159A (en) 1941-10-07
US2235506A (en) 1941-03-18

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