EP0012645B1 - Antenne en plaque à double boucle circulaire - Google Patents

Antenne en plaque à double boucle circulaire Download PDF

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Publication number
EP0012645B1
EP0012645B1 EP79400907A EP79400907A EP0012645B1 EP 0012645 B1 EP0012645 B1 EP 0012645B1 EP 79400907 A EP79400907 A EP 79400907A EP 79400907 A EP79400907 A EP 79400907A EP 0012645 B1 EP0012645 B1 EP 0012645B1
Authority
EP
European Patent Office
Prior art keywords
antenna
axis
plane
slit
rings
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
EP79400907A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0012645A1 (fr
Inventor
Henri Albert Paul Havot
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT79400907T priority Critical patent/ATE3923T1/de
Publication of EP0012645A1 publication Critical patent/EP0012645A1/fr
Application granted granted Critical
Publication of EP0012645B1 publication Critical patent/EP0012645B1/fr
Expired legal-status Critical Current

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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
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • 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

Definitions

  • Plate antennas have already been the subject of studies and it is known, for example, that it is possible to establish an equivalence between the width of a plate antenna and the diameter of the circular strand of a doublet.
  • This equivalence has, for example, been dealt with in R.W.O. King entitled "The theory of linear antennas published in 1956 by Harvard University Press, Cambridge, Mass., USA.
  • Doublets folded in stranded plate fed much wider than the folded strand such as, for example, that described in patent FR2311 422.
  • the object of the present invention is to provide an antenna very different from these known antennas and making it possible to obtain significantly better performance.
  • the antenna is constituted by two tangent circular conducting rings, the two rings being electrically connected to each other in the tangency zone whose length is, in the direction perpendicular to the axis , of the order of magnitude of the width of the rings, one edge of the slot being excited in the vicinity of the center of symmetry of the antenna while the midpoint of at least one ring, located on the axis in the area diametrically opposite to the center of symmetry, is to ground.
  • the antenna radiation patterns show only one main lobe and no secondary lobe in the frequency range considered.
  • the directivity calculated from the diagrams is between 10 dB for the lowest frequencies and 14.7 for the highest frequency.
  • the average value of the directivity is, in the middle of the band, greater than 12 dB.
  • Fig. 2 shows an array of two radiating elements of FIG. 1 which are aligned along the axis 10.
  • the first element 22 includes, like that of FIG. 1 two crowns 1 and 2 while the second element 23 comprises two crowns 1 'and 2' which are respectively symmetrical with the crowns 1 and 2 with respect to the straight line 24 perpendicular to the axis 10 at the point of external tangency of the crown 1 Crowns 1 and 1 'are tangent.
  • the power cable 25 ends at the point of intersection of 10 and 24, with its outer conductor welded to the plates of the crowns 1 and 2.
  • the network of two elements can be supplied by a cable 25 having an impedance of 100 ohms, provided that the width of the strands is chosen correctly, that is to say narrower than in the element in FIG. 1.
  • FIG. 3 shows an array of four radiating elements in FIG. 1 which constitute two pairs of antennas in FIG. 2.
  • This network comprises the elements 30, 31, 32 and 33, which are respectively tangent two by two.
  • a supply cable 34 is connected to the point of tangency of the elements 31 and 32. Its core is, this time connected to two strip lines symmetrical with respect to the straight line35, perpendicular to the axis 10 at the point of tangency of 31 and 32.
  • These lines 36 and 36 ' are also symmetrical with the lines 17 and 17' of the antenna of FIG. 2 relative to the axis 10, that is to say that they run under the halves of crowns which include the point of excitation.
  • the radiating element of the invention simply makes it possible, using the strip line technique, to produce networks with a large number of elements.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)
EP79400907A 1978-11-27 1979-11-23 Antenne en plaque à double boucle circulaire Expired EP0012645B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79400907T ATE3923T1 (de) 1978-11-27 1979-11-23 Antenne aus zwei kreisfoermigen flachen ringen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7834424 1978-11-27
FR7834424A FR2442520A1 (fr) 1978-11-27 1978-11-27 Antenne en plaques a double boucles circulaires

Publications (2)

Publication Number Publication Date
EP0012645A1 EP0012645A1 (fr) 1980-06-25
EP0012645B1 true EP0012645B1 (fr) 1983-06-22

Family

ID=9215772

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79400907A Expired EP0012645B1 (fr) 1978-11-27 1979-11-23 Antenne en plaque à double boucle circulaire

Country Status (5)

Country Link
US (1) US4443805A (enrdf_load_stackoverflow)
EP (1) EP0012645B1 (enrdf_load_stackoverflow)
AT (1) ATE3923T1 (enrdf_load_stackoverflow)
DE (1) DE2965766D1 (enrdf_load_stackoverflow)
FR (1) FR2442520A1 (enrdf_load_stackoverflow)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2113476B (en) * 1982-01-15 1985-07-03 Marconi Co Ltd Antenna arrangement
US4479127A (en) * 1982-08-30 1984-10-23 Gte Products Corporation Bi-loop antenna system
FR2556510B1 (fr) * 1983-12-13 1986-08-01 Thomson Csf Antenne periodique plane
EP0184235A1 (en) * 1984-11-08 1986-06-11 Koninklijke Philips Electronics N.V. Vor antenna design
WO1988009065A1 (en) * 1987-05-08 1988-11-17 Darrell Coleman Broad frequency range aerial
GB9222213D0 (en) * 1992-10-22 1992-12-02 Pilkington Glass Ltd Translucent article having induction loop antenna
US5872546A (en) * 1995-09-27 1999-02-16 Ntt Mobile Communications Network Inc. Broadband antenna using a semicircular radiator
US6259416B1 (en) 1997-04-09 2001-07-10 Superpass Company Inc. Wideband slot-loop antennas for wireless communication systems
FR2775127A1 (fr) * 1998-02-17 1999-08-20 Tekelec Temex Antenne en plaque
FR2775128B1 (fr) * 1998-02-19 2000-05-05 Henri Havot Antenne miniaturisee
FR2779011B1 (fr) * 1998-05-19 2000-09-15 Henri Havot Antenne en plaques a double boucles circulaires excitees par capacite
RU2281589C2 (ru) * 2004-03-31 2006-08-10 Федеральное Государственное Унитарное Предприятие "Нижегородский Научно-Исследовательский Институт Радиотехники" Вибраторная сверхвысокочастотная антенна с расширенным рабочим диапазоном
RU2273079C2 (ru) * 2004-05-20 2006-03-27 Общество с ограниченной ответственностью "ТЕЛЕКОНТА" Панельная антенна
US20100207831A1 (en) * 2009-02-18 2010-08-19 Wu Huei-Chi Loop Dipole Antenna Module
JP4952835B2 (ja) * 2009-11-20 2012-06-13 株式会社デンソー 変形折返しダイポールアンテナ及びそのインピーダンス調整方法、アンテナ装置
RU2465696C1 (ru) * 2011-09-13 2012-10-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Мурманский государственный технический университет" (ФГБОУ ВПО "МГТУ") Вибратор горизонтальный укороченный повышенной диапазонности

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE472157A (enrdf_load_stackoverflow) * 1945-08-13
US2935747A (en) * 1956-03-05 1960-05-03 Rca Corp Broadband antenna system
GB853472A (en) * 1956-04-07 1960-11-09 Emi Ltd Improvements in or relating to aerials
JPS5119948B1 (enrdf_load_stackoverflow) * 1970-11-21 1976-06-21
NL7300260A (enrdf_load_stackoverflow) * 1972-01-10 1973-07-12
FR2279233A1 (fr) * 1974-07-18 1976-02-13 France Etat Doublet replie epais raccourci
FR2298200A1 (fr) * 1975-01-17 1976-08-13 France Etat Doublet replie epais accordable dans une bande de frequence de deux octaves
FR2311422A1 (fr) * 1975-05-15 1976-12-10 France Etat Doublet replie en plaques

Also Published As

Publication number Publication date
FR2442520B1 (enrdf_load_stackoverflow) 1983-02-25
ATE3923T1 (de) 1983-07-15
DE2965766D1 (en) 1983-07-28
US4443805A (en) 1984-04-17
FR2442520A1 (fr) 1980-06-20
EP0012645A1 (fr) 1980-06-25

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