DE115270T1 - Frequenzunabhaengige antenne. - Google Patents

Frequenzunabhaengige antenne.

Info

Publication number
DE115270T1
DE115270T1 DE198484100076T DE84100076T DE115270T1 DE 115270 T1 DE115270 T1 DE 115270T1 DE 198484100076 T DE198484100076 T DE 198484100076T DE 84100076 T DE84100076 T DE 84100076T DE 115270 T1 DE115270 T1 DE 115270T1
Authority
DE
Germany
Prior art keywords
current loop
antenna
shielding
arrangement
current
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.)
Pending
Application number
DE198484100076T
Other languages
English (en)
Inventor
Henning F. Potomac Maryland 20854 Harmuth
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.)
Geophysical Survey Systems Inc Hudson Nh Us
Original Assignee
Geophysical Survey Systems Inc Hudson Nh Us
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 Geophysical Survey Systems Inc Hudson Nh Us filed Critical Geophysical Survey Systems Inc Hudson Nh Us
Publication of DE115270T1 publication Critical patent/DE115270T1/de
Pending 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
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
    • H01Q17/001—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems for modifying the directional characteristic of an aerial
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Claims (6)

0 Veröffentlichungsnummer: 0 115 270 A2 EUROPÄISCHE PATENTANMELDUNG (jy Anmeldenummer: 84100076.3 © Anmeldetag: 05.01.84 »: H 01 Q 7/00 6q) Priorität: 26.01.83 US 461153 @ Veröffentlichungstag der Anmeldung: 08.08.84 Patentblatt 84/32 (5) Benannte Vertragsstaaten: BE CH DE FR GB IT LI NL SE Anmelder: Geophysical Survey Systems, Inc. IS Flagstone Drive Hudson New Hampshire 030SI(US) Erfinder: Harmuth, Henning F. 10905 Picasso Lan· Potomac Maryland 20854(US) ) Vertreter: Modiano, Guido et al, MODIANO, JOSIF, PISANTY & STAUB P.O.Box 392 - CHIASSO (Schweiz) (54) Frequenzunabhängige Antenne Übersetzung der Patentansprüche der veröffentlichten Europäischen Patentanmeldung Nr.0 115 270 (Artikel 112 des Schweiz. Patentgesetzes) (Artikel 116 der Schweiz. Verordnung zur Ausführung des Schweiz. Patentgesetzes) PATENTANSPRÜCHE
1. Eine Antenne zur Erzeugung elektrischer Dipol-Strahlung, bestehend aus
Ca) einer elektrisch leitenden Stromschleife, von der ein Teil der Strahler für die Abstrahlung elektromagnetischer Wellen ist,
(b) einer Stromquelle, die einen Strom durch diese leitende Stromschleife treibt, und
(c) einer Anordnung zur Abschirmung einer Abstrahlung von der Stromquelle und dem Teil der Stromschleife, der dem strahlenden Teil gegenüberliegt, wobei die Anordnung zur Abschirmung der Stromquelle und die Teile der leitenden Stromschleife umgibt, der dem strahlenden Teil gegenüberliegt.
2. Die Antenne nach Anspruch 1 mit dem Zusatz
(a) daß absorbierendes Material mit der Anordnung zur Abschirmung verwendet wird, das Energie von den in der Abschirmung erregten Oberfl ächens tränen absorbiert.
3. Die Antenne nach Anspruch 1, mit der Anordnung zur Abschirmung aus verlustbehaftetanMaterial gemacht, das die in der Abschirmung erregten Oberflächenströme dämpft.
4. Die Antenne nach Anspruch 1, mit dem strahlenden Teil der Stromschleife, aus einem leitenden Blechstreifen beträchtlicher Breite gemacht.
5. Eine Empfangsantenne, bestehend aus
(a) einer elektrisch leitenden Stromschleife, von der ein Teil die elektromagnetische Welle empfängt und in einen Strom umwandelt, während der gegenüberliegende Teil der Stromschleife eine konzentrierte Impedanz enthält.
(b) einer Abschirmung,um den Teil der Stromschleife, der dem empfangenden Teil gegenüberliegt und diesen Teil gegen die elektromagnetischen Wellen abschirmt, denen der empfangende Teil der Stromschleife ausgesetzt ist, und
(c) einer Anordnung zur Entdeckung eines Signales, das durch den Stromfluß in der Stromschleife an den Anschlußpunkten der konzentrierten Impedanz erzeugt wird.
6. Die Empfangsantenne nach Anspruch 5, wobei die konzentrierte Impedanz ein Widerstand R ist, dessen Wert größer als der Wellenwiderstand des freien Raumes ist.
DE198484100076T 1983-01-26 1984-01-05 Frequenzunabhaengige antenne. Pending DE115270T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/461,153 US4506267A (en) 1983-01-26 1983-01-26 Frequency independent shielded loop antenna

Publications (1)

Publication Number Publication Date
DE115270T1 true DE115270T1 (de) 1986-05-22

Family

ID=23831425

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8484100076T Expired - Fee Related DE3485185D1 (de) 1983-01-26 1984-01-05 Frequenzunabhaengige antenne.
DE198484100076T Pending DE115270T1 (de) 1983-01-26 1984-01-05 Frequenzunabhaengige antenne.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8484100076T Expired - Fee Related DE3485185D1 (de) 1983-01-26 1984-01-05 Frequenzunabhaengige antenne.

Country Status (4)

Country Link
US (1) US4506267A (de)
EP (1) EP0115270B1 (de)
JP (1) JPS59141802A (de)
DE (2) DE3485185D1 (de)

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Also Published As

Publication number Publication date
US4506267A (en) 1985-03-19
EP0115270A3 (en) 1987-11-11
EP0115270B1 (de) 1991-10-23
JPS59141802A (ja) 1984-08-14
EP0115270A2 (de) 1984-08-08
DE3485185D1 (de) 1991-11-28
JPH0425723B2 (de) 1992-05-01

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