FR2231128A1 - Folded dipole network - is used for wide band directional system capable of handling circular polarisations - Google Patents

Folded dipole network - is used for wide band directional system capable of handling circular polarisations

Info

Publication number
FR2231128A1
FR2231128A1 FR7319255A FR7319255A FR2231128A1 FR 2231128 A1 FR2231128 A1 FR 2231128A1 FR 7319255 A FR7319255 A FR 7319255A FR 7319255 A FR7319255 A FR 7319255A FR 2231128 A1 FR2231128 A1 FR 2231128A1
Authority
FR
France
Prior art keywords
network
lambda
dipoles
system capable
wide band
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.)
Granted
Application number
FR7319255A
Other languages
French (fr)
Other versions
FR2231128B1 (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.)
DUBOST GERARD FR
Original Assignee
DUBOST GERARD FR
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 DUBOST GERARD FR filed Critical DUBOST GERARD FR
Priority to FR7319255A priority Critical patent/FR2231128A1/en
Publication of FR2231128A1 publication Critical patent/FR2231128A1/en
Application granted granted Critical
Publication of FR2231128B1 publication Critical patent/FR2231128B1/fr
Granted 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
    • H01Q9/26—Resonant 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
    • 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
    • H01Q19/06—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 refracting or diffracting devices, e.g. lens
    • H01Q19/09—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 refracting or diffracting devices, e.g. lens wherein the primary active element is coated with or embedded in a dielectric or magnetic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

The dipole network is constructed so that the diple diameter is approximately one fifteenth of a free space wavelength, this wavelength being that of the centre frequency of the pass-band. It has two pairs of such dipoles arranged as a square supplied in phase 0.21 lambda away from a plain reflector spaced 0.48 lambda from a line passing through the centre of the network. The dipoles are identical and 0.4 lambda long and can be phase fed according to the polarisation of the received signals. The dipoles may be fed in quadrature for the reception of circular polarisation. The reflector is a high conductivity metal plate having dimensions of the order of 1.25 lambda and the network may be screened by a ferrite enclosure.
FR7319255A 1973-05-21 1973-05-21 Folded dipole network - is used for wide band directional system capable of handling circular polarisations Granted FR2231128A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7319255A FR2231128A1 (en) 1973-05-21 1973-05-21 Folded dipole network - is used for wide band directional system capable of handling circular polarisations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7319255A FR2231128A1 (en) 1973-05-21 1973-05-21 Folded dipole network - is used for wide band directional system capable of handling circular polarisations

Publications (2)

Publication Number Publication Date
FR2231128A1 true FR2231128A1 (en) 1974-12-20
FR2231128B1 FR2231128B1 (en) 1977-05-27

Family

ID=9120063

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7319255A Granted FR2231128A1 (en) 1973-05-21 1973-05-21 Folded dipole network - is used for wide band directional system capable of handling circular polarisations

Country Status (1)

Country Link
FR (1) FR2231128A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311422A1 (en) * 1975-05-15 1976-12-10 France Etat DOUBLET FOLDED IN PLATES
EP0044779A1 (en) * 1980-07-23 1982-01-27 ETAT FRANCAIS repr. par le Secrétaire d'Etat aux Postes et Télécomm. et à la Télédiffusion (CENT. NAT. D'ETUDES DES TELECOMM.) Folded dipoles in tri-plate technology for very high frequencies, and arrays comprising the same
FR2950745A1 (en) * 2009-09-30 2011-04-01 Alcatel Lucent RADIANT ELEMENT OF ANTENNA WITH DUAL POLARIZATION

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311422A1 (en) * 1975-05-15 1976-12-10 France Etat DOUBLET FOLDED IN PLATES
US4084162A (en) * 1975-05-15 1978-04-11 Etat Francais Represented By Delegation Ministerielle Pour L'armement Folded back doublet microstrip antenna
EP0044779A1 (en) * 1980-07-23 1982-01-27 ETAT FRANCAIS repr. par le Secrétaire d'Etat aux Postes et Télécomm. et à la Télédiffusion (CENT. NAT. D'ETUDES DES TELECOMM.) Folded dipoles in tri-plate technology for very high frequencies, and arrays comprising the same
FR2487588A1 (en) * 1980-07-23 1982-01-29 France Etat DOUBLE REPLIES IN PLATES FOR VERY HIGH FREQUENCY AND NETWORKS OF SUCH DOUBLETS
FR2950745A1 (en) * 2009-09-30 2011-04-01 Alcatel Lucent RADIANT ELEMENT OF ANTENNA WITH DUAL POLARIZATION
EP2309596A1 (en) * 2009-09-30 2011-04-13 Alcatel Lucent Dual-polarization antenna's radiating element

Also Published As

Publication number Publication date
FR2231128B1 (en) 1977-05-27

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Legal Events

Date Code Title Description
ST Notification of lapse