FR2472281B1 - Antenne compacte de hauteur reduite pour l'emission ou la reception des champs electromagnetiques - Google Patents

Antenne compacte de hauteur reduite pour l'emission ou la reception des champs electromagnetiques

Info

Publication number
FR2472281B1
FR2472281B1 FR7931211A FR7931211A FR2472281B1 FR 2472281 B1 FR2472281 B1 FR 2472281B1 FR 7931211 A FR7931211 A FR 7931211A FR 7931211 A FR7931211 A FR 7931211A FR 2472281 B1 FR2472281 B1 FR 2472281B1
Authority
FR
France
Prior art keywords
reception
transmission
electromagnetic fields
reduced height
compact antenna
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
FR7931211A
Other languages
English (en)
Other versions
FR2472281A1 (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.)
RAYAN SARL
Original Assignee
RAYAN SARL
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 RAYAN SARL filed Critical RAYAN SARL
Priority to FR7931211A priority Critical patent/FR2472281B1/fr
Publication of FR2472281A1 publication Critical patent/FR2472281A1/fr
Application granted granted Critical
Publication of FR2472281B1 publication Critical patent/FR2472281B1/fr
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/40Radiating elements coated with or embedded in protective material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/16Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
FR7931211A 1979-12-20 1979-12-20 Antenne compacte de hauteur reduite pour l'emission ou la reception des champs electromagnetiques Expired FR2472281B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7931211A FR2472281B1 (fr) 1979-12-20 1979-12-20 Antenne compacte de hauteur reduite pour l'emission ou la reception des champs electromagnetiques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7931211A FR2472281B1 (fr) 1979-12-20 1979-12-20 Antenne compacte de hauteur reduite pour l'emission ou la reception des champs electromagnetiques

Publications (2)

Publication Number Publication Date
FR2472281A1 FR2472281A1 (fr) 1981-06-26
FR2472281B1 true FR2472281B1 (fr) 1985-09-06

Family

ID=9232988

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7931211A Expired FR2472281B1 (fr) 1979-12-20 1979-12-20 Antenne compacte de hauteur reduite pour l'emission ou la reception des champs electromagnetiques

Country Status (1)

Country Link
FR (1) FR2472281B1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR430637A (fr) * 1911-06-06 1911-10-20 Robert Goldschmidt Dispositif pour augmenter la longueur d'onde des antennes usitées en radiotélégraphie
US2177416A (en) * 1938-03-15 1939-10-24 Mackay Radio & Telegraph Compa Short wave antenna system
US2417793A (en) * 1944-08-01 1947-03-18 Rca Corp Antenna
FR955769A (fr) * 1946-11-30 1950-01-19
US2937372A (en) * 1952-09-30 1960-05-17 Andrew Corp Broad band antenna
US3295137A (en) * 1964-09-08 1966-12-27 Collins Radio Co Shortened folded monopole with radiation efficiency increased by ferrite loading
FR1497144A (fr) * 1965-10-22 1967-10-06 Perfectionnements aux antennes
BE792553A (fr) * 1971-12-22 1973-06-12 Lannionnais Electronique Antenne radioelectrique de faibles dimensions

Also Published As

Publication number Publication date
FR2472281A1 (fr) 1981-06-26

Similar Documents

Publication Publication Date Title
GB9300026D0 (en) Planar microwave transceiver employing shared-ground-plane antenna
GB2053614B (en) Radar radiating polarized signals
GB8824164D0 (en) Continuously transmitting & receiving radar
GB8828561D0 (en) Continuously transmitting & receiving radar
GB2252217B (en) Radar antenna
GB2235346B (en) Radar receiver
GB2213016B (en) Secondary radar transponders
FR2635416B1 (fr) Antenne pour voiture
MA21206A1 (fr) Antenne pour la reception d'energie electromagnetique.
GB2271470B (en) Radar transmitting structures
CH686107GA3 (fr) Piece d'horlogerie comportant une antenne d'emission d'un signal electromagnetique.
FR2567685B1 (fr) Antenne plane pour micro-ondes
GB2382228B (en) Dual beam monopulse antenna system
FR2345825A1 (fr) Antenne receptrice ou emettrice pour radar
JPS55125466A (en) Electromagnetic beam receiver
GB8627719D0 (en) Waveguide doppler antenna
FR2472281B1 (fr) Antenne compacte de hauteur reduite pour l'emission ou la reception des champs electromagnetiques
FR2760133B1 (fr) Antenne resonnante pour l'emission ou la reception d'ondes polarisees
GB2127244B (en) Radar transmitter
IT1183520B (it) Procedimento per la misura della distanza tra oggetti qualsiasi e trasmettitore e ricevitore per l'esecuzione del prcentimento
FR2711846B1 (fr) Moyen d'occultation pour antennes de radar.
GB8923744D0 (en) Microwave radar transmitting antenna
FR2736160B1 (fr) Dispositif anti-detection pour antenne radar
FR2702090B1 (fr) Antenne d'écartométrie pour radar monopulse.
GB9116208D0 (en) Microwave transmitter-receiver radar device

Legal Events

Date Code Title Description
ST Notification of lapse