DE865478C - Omnidirectional antenna for very short waves - Google Patents

Omnidirectional antenna for very short waves

Info

Publication number
DE865478C
DE865478C DEL329A DEL0000329A DE865478C DE 865478 C DE865478 C DE 865478C DE L329 A DEL329 A DE L329A DE L0000329 A DEL0000329 A DE L0000329A DE 865478 C DE865478 C DE 865478C
Authority
DE
Germany
Prior art keywords
frame
corners
dipole
short waves
hand
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
DEL329A
Other languages
German (de)
Inventor
Joachim Dr Phil Goldmann
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.)
Alcatel Lucent Deutschland AG
Original Assignee
Standard Elektrik Lorenz AG
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 Standard Elektrik Lorenz AG filed Critical Standard Elektrik Lorenz AG
Priority to DEL329A priority Critical patent/DE865478C/en
Application granted granted Critical
Publication of DE865478C publication Critical patent/DE865478C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems

Description

Zum Zwecke der Rundstrahlung ultrahochfrequenter elektromagnetischer Energie, ins,besonr dere für den Rundfunkempfang, benutzt man vielfach Antennensysteme, die aus horizontal aufgestellten Dipolrahmen bestehen. Ein solcher Dipolrahmen stellt zwei rechtwinklig gebogene -Dipole dar, bei, denen durch Kombination der beiden Strahlungsdiagramme bei waagerechter Lage des Rahmens eine Strahlung erreicht wird, die in der Senkrechten ihr Minimum und in der Horizontalen ihr Maximum hat, dessen Intensität für alle Richtungen nahezu die gleiche ist, so daß das kombinierte Strahlungsdiagramm eines solchen Systems von oben betrachtet annähernd kreisförmig ist.For the purpose of omnidirectional radiation of ultra-high frequency electromagnetic Energy, especially for radio reception, antenna systems are often used, which consist of horizontally placed dipole frames. Such a dipole frame represents represent two right-angled dipoles, in which a combination of the two Radiation diagrams with a horizontal position of the frame radiation is achieved, which has its minimum in the vertical and its maximum in the horizontal, its Intensity for all directions is almost the same, so that the combined radiation pattern of such a system is approximately circular when viewed from above.

Nun ist bereits eine Anzahl von Varianten solcher Dipolrahmen bekanntgeworden, die sämtlich die gleichen, obenerwähnten Strahlungseigenschaften zeigen und bei deren Entwicklung .das Be= streben: zugrunde lag, Systeme zu schaffen, die sowohl hinsichtlich ihrer Aufstellung als auch bezüglich ihrer elektrischen Eigenschaften, insbesondere der Speisung, möglichst günstig sind.A number of variants of such dipole frames have already become known, all of which show the same radiation properties mentioned above and at the development of which. the endeavor: was based on creating systems that both with regard to their installation as well as their electrical properties, especially the supply, are as cheap as possible.

Hiervon ist besonders: ein günstiges System zu erwähnen, welches in »T e r m a n : Radio Engineers. Handbook«, beschrieben; ist. Diese Anordnung ist in: Fig. i der Zeichnung dargestellt. Man erkennt daran., daß dieses System aus zwei umgebogenen Dipolen entstanden ist, die rahmeniörmig zusammengebogen sind. Die Speisung erfolgtgegenphasig an den Stellern i und 2.Of these, a special mention should be made of an inexpensive system, which is implemented in »T e r m a n: Radio Engineers. Handbook «, described; is. This arrangement is shown in: Fig. i of the drawing. One recognizes that this system consists of two bent dipoles was created, which are bent together to form a frame. The feed takes place in phase opposition to the controllers i and 2.

Während Fig. i a nur das Prinzip dieser Anordnung darstellt, zeigt Fig. i b eine praktisch empfehlenswerte Form eines solchen: Strahlungsgebildes, bei welchem die Enden der Dipole zwecks räumlicher Verkleinerung des Systems mit Zusatzkapazitäten q, und 5 versehen, sind. Die Rahmenwirkung erkennt man daran, daß der Strom in einem Zeitaugenblick ständig- in einem Sinn umläuft, beispielsweise in Richtung der in Fig. z a eingezeichneten Pfeile.While Fig. 1 a shows only the principle of this arrangement Fig. I b a practically recommendable form of such a: radiation pattern, in which the ends of the dipoles for the purpose of spatial reduction of the system with Additional capacities q and 5 are provided. The framework effect can be recognized by that in a moment of time the current circulates continuously in one sense, for example in the direction of the arrows shown in FIG.

Die vorliegende Erfindung befaßt sich. nun, mit einer Weiterentwicklung dieses oben beschriebenen Systems, da letzteres insofern noch Nachteile hat, als der Dipolrahmen. an allen vier Ecken Isolierstellen aufweisen muß, die die mechanische Konstruktion solcher Gebilde in erheblichem Maße erschweren.The present invention is concerned. well, with a further development this system described above, since the latter still has disadvantages insofar as the dipole frame. must have insulation points at all four corners that prevent the mechanical Complicate the construction of such structures to a considerable extent.

Erfindungsgemäß wird: vorgeschlagen, den Dipolrahmen. an zwei diametral gegenüberliegenden Ecken, derart gegenphasig symmetrisch zu speisen, daß die beiden anderen Ecken kein Hochfrequenzpotential aufweisen, sondern: vorzugsweise an Erde gelegt werden können.According to the invention: proposed the dipole frame. at two diametrically opposite corners to feed so out of phase symmetrically that the two other corners have no high frequency potential, but: preferably to earth can be laid.

Eine beispielsweise Ausführung des erfindungsgemäßen Dipolrahmens stellt Fig. 2 dar. Der Rahmen wird an den Ecken 6 und 7 symmetrisch gegenphasig gespeist, während die Ecken 8 und 9 an Erde oder an Masse (Mast) gelegt werden können. Ebenfalls bei diesem System lassen sich Zusatzkapazitäten io und i i entsprechend 4 und 5 in Fig. i b vorsehen.An example embodiment of the dipole frame according to the invention Fig. 2 represents. The frame becomes symmetrically out of phase at corners 6 and 7 fed, while the corners 8 and 9 can be placed on earth or ground (mast). Additional capacities io and i i can also be added accordingly with this system 4 and 5 in Fig. I b provide.

Da die Stromverteilung-längs des Rahmens eine ungleichmäßige ist, empfiehlt es sich, ihn so auszubilden, draß das Verhältnis zwischen StTomfluß einerseits und Widerstand andererseits an, jeder Stelle des Rahmens möglichst gleich ist. Das läßt sich entsprechend Fig.3, beispielsweise durch stetige Veränderung des Profils bzw. der Oberfläche des Rahmenleiters erzielen.Since the current distribution along the frame is uneven, it is advisable to train him in such a way that the relationship between the current flow is on the one hand and resistance on the other hand, every point of the frame is as equal as possible. That can be according to FIG. 3, for example by continuously changing the profile or the surface of the frame conductor.

Claims (2)

PATENTANSPRÜCHE: i. Rundstrahlanfienne für sehr kurze Wellen in; Form eines Dipolrahmens, dadurch gekennzeichnet, daß dieser an zwei diametral gegenüberliegenden Ecken derart gegenphasig symmetrisch gespeist wird, daß die beiden anderen Ecken kein Hochfrequenzpotential aufweisen; sondern vorzugs,vveise an Erde liegen. PATENT CLAIMS: i. Omnidirectional for very short waves in; shape a dipole frame, characterized in that this is at two diametrically opposite Corners is fed symmetrically out of phase in such a way that the other two corners have no high frequency potential; but preferably to lie on the ground. 2. Dipolrahmen nach Anspruch i, dadurch gekennzeichnet, daß an: den Ecken:, in welchen die Speisung erfolgt, Zusatzkapazitäten angebracht sind. 3;. Dipolrahmen nach. Anspruch i und 2, dadurch gekennzeichnet, da.ß durch eine stetige Veränderung des Profils bzw. der Oberfläche des Rahmenleiters das Verhältnis zwischen Stromfluß einerseits und Widerstand andererseits an jeder Stelle des Rahmens nahezu gleich ist. Angezogene Druckschriften: Andrew Alford, and A. G. Kandoian, Ultrahigh-frequency Loop Antennas, Trans. A. I. E. E., Vol. 5,9, p 8q!3, 1940; Terman, Radio Engineers Handbook, 1943, S.814.2. Dipole frame according to claim i, characterized in that at: the corners: in which the supply takes place, additional capacities are attached. 3 ;. Dipole frame according to. claim i and 2, characterized in that the profile changes continuously or the surface of the frame conductor the relationship between current flow on the one hand and resistance, on the other hand, is almost the same at every point in the frame. Dressed Publications: Andrew Alford, and A. G. Kandoian, Ultrahigh-frequency Loop Antennas, Trans. A. I. E. E., Vol. 5.9, p 8q! 3, 1940; Terman, Radio Engineers Handbook, 1943, P.814.
DEL329A 1949-11-03 1949-11-03 Omnidirectional antenna for very short waves Expired DE865478C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL329A DE865478C (en) 1949-11-03 1949-11-03 Omnidirectional antenna for very short waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL329A DE865478C (en) 1949-11-03 1949-11-03 Omnidirectional antenna for very short waves

Publications (1)

Publication Number Publication Date
DE865478C true DE865478C (en) 1953-02-02

Family

ID=7254851

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL329A Expired DE865478C (en) 1949-11-03 1949-11-03 Omnidirectional antenna for very short waves

Country Status (1)

Country Link
DE (1) DE865478C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547776A (en) * 1983-11-03 1985-10-15 The United States Of America As Represented By The Secretary Of The Navy Loop antenna with improved balanced feed
EP2034557A3 (en) * 2007-09-06 2009-10-28 Delphi Delco Electronics Europe GmbH Antenna for satellite reception
US7936309B2 (en) 2007-09-06 2011-05-03 Delphi Delco Electronics Europe Gmbh Antenna for satellite reception

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547776A (en) * 1983-11-03 1985-10-15 The United States Of America As Represented By The Secretary Of The Navy Loop antenna with improved balanced feed
EP2034557A3 (en) * 2007-09-06 2009-10-28 Delphi Delco Electronics Europe GmbH Antenna for satellite reception
US7936309B2 (en) 2007-09-06 2011-05-03 Delphi Delco Electronics Europe Gmbh Antenna for satellite reception

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